頁 29 - 電晶體 - 雙極 (BJT) - 單 | 離散半導體產品

零件編號	製造商	描述	封裝	庫存	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
2SA1837,S1CSF(J	Toshiba Semiconductor and Storage	TRANS PNP 1A 230V TO220-3 Transistor Type: PNP Current - Collector (Ic) (Max): 1A Voltage - Collector Emitter Breakdown (Max): 230V Vce Saturation (Max) @ Ib, Ic: 1.5V @ 50mA, 500mA Current - Collector Cutoff (Max): 1µA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 100mA, 5V Power - Max: 2W Frequency - Transition: 70MHz Operating Temperature: 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-220-3 Full Pack Supplier Device Package: TO-220NIS	封裝: TO-220-3 Full Pack	庫存2,224	1A	230V	1.5V @ 50mA, 500mA	1µA (ICBO)	100 @ 100mA, 5V	2W	70MHz	150°C (TJ)	Through Hole	TO-220-3 Full Pack	TO-220NIS
2SC4482U-AN	ON Semiconductor	TRANS NPN 20V 5A NMP Transistor Type: NPN Current - Collector (Ic) (Max): 5A Voltage - Collector Emitter Breakdown (Max): 20V Vce Saturation (Max) @ Ib, Ic: 500mV @ 60mA, 3A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 280 @ 500mA, 2V Power - Max: 1W Frequency - Transition: 150MHz Operating Temperature: 150°C (TJ) Mounting Type: Through Hole Package / Case: SC-71 Supplier Device Package: 3-NMP	封裝: SC-71	庫存2,064	5A	20V	500mV @ 60mA, 3A	100nA (ICBO)	280 @ 500mA, 2V	1W	150MHz	150°C (TJ)	Through Hole	SC-71	3-NMP
FJP5200OTU	Fairchild/ON Semiconductor	TRANS NPN 250V 17A TO-220AB Transistor Type: NPN Current - Collector (Ic) (Max): 17A Voltage - Collector Emitter Breakdown (Max): 250V Vce Saturation (Max) @ Ib, Ic: 3V @ 800mA, 8A Current - Collector Cutoff (Max): 5µA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 80 @ 1A, 5V Power - Max: 80W Frequency - Transition: 30MHz Operating Temperature: -50°C ~ 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-220-3 Supplier Device Package: TO-220-3	封裝: TO-220-3	庫存7,504	17A	250V	3V @ 800mA, 8A	5µA (ICBO)	80 @ 1A, 5V	80W	30MHz	-50°C ~ 150°C (TJ)	Through Hole	TO-220-3	TO-220-3
BUL146FG	ON Semiconductor	TRANS NPN 400V 6A TO-220FP Transistor Type: NPN Current - Collector (Ic) (Max): 6A Voltage - Collector Emitter Breakdown (Max): 400V Vce Saturation (Max) @ Ib, Ic: 700mV @ 600mA, 3A Current - Collector Cutoff (Max): 100µA DC Current Gain (hFE) (Min) @ Ic, Vce: 14 @ 500mA, 5V Power - Max: 40W Frequency - Transition: 14MHz Operating Temperature: -65°C ~ 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-220-3 Full Pack Supplier Device Package: TO-220FP	封裝: TO-220-3 Full Pack	庫存87,600	6A	400V	700mV @ 600mA, 3A	100µA	14 @ 500mA, 5V	40W	14MHz	-65°C ~ 150°C (TJ)	Through Hole	TO-220-3 Full Pack	TO-220FP
FJP5021RTU	Fairchild/ON Semiconductor	TRANS NPN 500V 5A TO-220 Transistor Type: NPN Current - Collector (Ic) (Max): 5A Voltage - Collector Emitter Breakdown (Max): 500V Vce Saturation (Max) @ Ib, Ic: 1V @ 600mA, 3A Current - Collector Cutoff (Max): 10µA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 15 @ 600mA, 5V Power - Max: 50W Frequency - Transition: 18MHz Operating Temperature: 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-220-3 Supplier Device Package: TO-220-3	封裝: TO-220-3	庫存2,512	5A	500V	1V @ 600mA, 3A	10µA (ICBO)	15 @ 600mA, 5V	50W	18MHz	150°C (TJ)	Through Hole	TO-220-3	TO-220-3
MCH3106-S-TL-E	ON Semiconductor	TRANS PNP 12V 3A MCPH3 Transistor Type: PNP Current - Collector (Ic) (Max): 3A Voltage - Collector Emitter Breakdown (Max): 12V Vce Saturation (Max) @ Ib, Ic: 165mV @ 30mA, 1.5A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 500mA, 2V Power - Max: 900mW Frequency - Transition: 280MHz Operating Temperature: - Mounting Type: Surface Mount Package / Case: 3-SMD, Flat Leads Supplier Device Package: 3-MCPH	封裝: 3-SMD, Flat Leads	庫存4,608	3A	12V	165mV @ 30mA, 1.5A	100nA (ICBO)	200 @ 500mA, 2V	900mW	280MHz	-	Surface Mount	3-SMD, Flat Leads	3-MCPH
ZXTP19100CZTA	Diodes Incorporated	TRANS PNP 100V 2A SOT89 Transistor Type: PNP Current - Collector (Ic) (Max): 2A Voltage - Collector Emitter Breakdown (Max): 100V Vce Saturation (Max) @ Ib, Ic: 295mV @ 200mA, 2A Current - Collector Cutoff (Max): 50nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 100mA, 2V Power - Max: 2.4W Frequency - Transition: 142MHz Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: TO-243AA Supplier Device Package: SOT-89-3	封裝: TO-243AA	庫存73,152	2A	100V	295mV @ 200mA, 2A	50nA (ICBO)	200 @ 100mA, 2V	2.4W	142MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-243AA	SOT-89-3
PBSS305NZ,135	Nexperia USA Inc.	TRANS NPN 80V 5.1A SOT-223 Transistor Type: NPN Current - Collector (Ic) (Max): 5.1A Voltage - Collector Emitter Breakdown (Max): 80V Vce Saturation (Max) @ Ib, Ic: 270mV @ 255mA, 5.1A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 180 @ 2A, 2V Power - Max: 2W Frequency - Transition: 110MHz Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: TO-261-4, TO-261AA Supplier Device Package: SOT-223	封裝: TO-261-4, TO-261AA	庫存7,376	5.1A	80V	270mV @ 255mA, 5.1A	100nA (ICBO)	180 @ 2A, 2V	2W	110MHz	150°C (TJ)	Surface Mount	TO-261-4, TO-261AA	SOT-223
TIP31A	Fairchild/ON Semiconductor	TRANS NPN 60V 3A TO-220 Transistor Type: NPN Current - Collector (Ic) (Max): 3A Voltage - Collector Emitter Breakdown (Max): 60V Vce Saturation (Max) @ Ib, Ic: 1.2V @ 375mA, 3A Current - Collector Cutoff (Max): 300µA DC Current Gain (hFE) (Min) @ Ic, Vce: 10 @ 3A, 4V Power - Max: 2W Frequency - Transition: 3MHz Operating Temperature: 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-220-3 Supplier Device Package: TO-220-3	封裝: TO-220-3	庫存94,296	3A	60V	1.2V @ 375mA, 3A	300µA	10 @ 3A, 4V	2W	3MHz	150°C (TJ)	Through Hole	TO-220-3	TO-220-3
FMB100	Fairchild/ON Semiconductor	TRANS NPN 45V 0.5A SSOT-6 Transistor Type: NPN Current - Collector (Ic) (Max): 500mA Voltage - Collector Emitter Breakdown (Max): 45V Vce Saturation (Max) @ Ib, Ic: 400mV @ 20mA, 200mA Current - Collector Cutoff (Max): 50nA DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 150mA, 5V Power - Max: 700mW Frequency - Transition: 300MHz Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: SOT-23-6 Thin, TSOT-23-6 Supplier Device Package: SuperSOT?-6	封裝: SOT-23-6 Thin, TSOT-23-6	庫存58,386	500mA	45V	400mV @ 20mA, 200mA	50nA	100 @ 150mA, 5V	700mW	300MHz	-55°C ~ 150°C (TJ)	Surface Mount	SOT-23-6 Thin, TSOT-23-6	SuperSOT?-6
ZTX789A	Diodes Incorporated	TRANS PNP 25V 3A E-LINE Transistor Type: PNP Current - Collector (Ic) (Max): 3A Voltage - Collector Emitter Breakdown (Max): 25V Vce Saturation (Max) @ Ib, Ic: 500mV @ 100mA, 3A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 10mA, 2V Power - Max: 1W Frequency - Transition: 100MHz Operating Temperature: -55°C ~ 200°C (TJ) Mounting Type: Through Hole Package / Case: E-Line-3 Supplier Device Package: E-Line (TO-92 compatible)	封裝: E-Line-3	庫存380,604	3A	25V	500mV @ 100mA, 3A	100nA (ICBO)	300 @ 10mA, 2V	1W	100MHz	-55°C ~ 200°C (TJ)	Through Hole	E-Line-3	E-Line (TO-92 compatible)
2SC4467	Sanken	TRANS NPN 120V 8A TO3P Transistor Type: NPN Current - Collector (Ic) (Max): 8A Voltage - Collector Emitter Breakdown (Max): 120V Vce Saturation (Max) @ Ib, Ic: 1.5V @ 300mA, 3A Current - Collector Cutoff (Max): 10µA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 50 @ 3A, 4V Power - Max: 80W Frequency - Transition: 20MHz Operating Temperature: 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-3P-3, SC-65-3 Supplier Device Package: TO-3P	封裝: TO-3P-3, SC-65-3	庫存15,144	8A	120V	1.5V @ 300mA, 3A	10µA (ICBO)	50 @ 3A, 4V	80W	20MHz	150°C (TJ)	Through Hole	TO-3P-3, SC-65-3	TO-3P
MJE200G	ON Semiconductor	TRANS NPN 40V 5A TO225AA Transistor Type: NPN Current - Collector (Ic) (Max): 5A Voltage - Collector Emitter Breakdown (Max): 40V Vce Saturation (Max) @ Ib, Ic: 1.8V @ 1A, 5A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 45 @ 2A, 1V Power - Max: 15W Frequency - Transition: 65MHz Operating Temperature: -65°C ~ 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-225AA, TO-126-3 Supplier Device Package: TO-225AA	封裝: TO-225AA, TO-126-3	庫存6,304	5A	40V	1.8V @ 1A, 5A	100nA (ICBO)	45 @ 2A, 1V	15W	65MHz	-65°C ~ 150°C (TJ)	Through Hole	TO-225AA, TO-126-3	TO-225AA
PBSS4350X,135	Nexperia USA Inc.	TRANS NPN 50V 3A SOT89 Transistor Type: NPN Current - Collector (Ic) (Max): 3A Voltage - Collector Emitter Breakdown (Max): 50V Vce Saturation (Max) @ Ib, Ic: 370mV @ 300mA, 3A Current - Collector Cutoff (Max): 100nA DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 1A, 2V Power - Max: 1.6W Frequency - Transition: 100MHz Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: TO-243AA Supplier Device Package: SOT-89-3	封裝: TO-243AA	庫存71,712	3A	50V	370mV @ 300mA, 3A	100nA	300 @ 1A, 2V	1.6W	100MHz	150°C (TJ)	Surface Mount	TO-243AA	SOT-89-3
FGPF4636YDTU	onsemi	INTEGRATED CIRCUIT Transistor Type: - Current - Collector (Ic) (Max): - Voltage - Collector Emitter Breakdown (Max): - Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: - Power - Max: - Frequency - Transition: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	封裝: -	Request a Quote	-	-	-	-	-	-	-	-	-	-	-
BC636-16ZL1	onsemi	SMALL SIGNAL BIPOLAR TRANSISTOR Transistor Type: PNP Current - Collector (Ic) (Max): 1 A Voltage - Collector Emitter Breakdown (Max): 45 V Vce Saturation (Max) @ Ib, Ic: 500mV @ 50mA, 500mA Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 150mA, 2V Power - Max: 1.5 W Frequency - Transition: 150MHz Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-226-3, TO-92-3 (TO-226AA) Supplier Device Package: TO-92 (TO-226)	封裝: -	Request a Quote	1 A	45 V	500mV @ 50mA, 500mA	100nA (ICBO)	100 @ 150mA, 2V	1.5 W	150MHz	-55°C ~ 150°C (TJ)	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92 (TO-226)
2SA1622-6-TL-E	onsemi	PNP SILICON TRANSISTOR Transistor Type: - Current - Collector (Ic) (Max): - Voltage - Collector Emitter Breakdown (Max): - Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: - Power - Max: - Frequency - Transition: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	封裝: -	Request a Quote	-	-	-	-	-	-	-	-	-	-	-
2N706	Microchip Technology	NPN TRANSISTOR Transistor Type: - Current - Collector (Ic) (Max): - Voltage - Collector Emitter Breakdown (Max): - Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: - Power - Max: - Frequency - Transition: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	封裝: -	Request a Quote	-	-	-	-	-	-	-	-	-	-	-
BC858AWHE3-TP	Micro Commercial Co	PNP TRANSISTORS, SOT-323 Transistor Type: PNP Current - Collector (Ic) (Max): 100 mA Voltage - Collector Emitter Breakdown (Max): 30 V Vce Saturation (Max) @ Ib, Ic: 650mV @ 5mA, 100mA Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 125 @ 2mA, 5V Power - Max: 150 mW Frequency - Transition: 100MHz Operating Temperature: -65°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: SC-70, SOT-323 Supplier Device Package: SOT-323	封裝: -	庫存17,970	100 mA	30 V	650mV @ 5mA, 100mA	100nA (ICBO)	125 @ 2mA, 5V	150 mW	100MHz	-65°C ~ 150°C (TJ)	Surface Mount	SC-70, SOT-323	SOT-323
FCG1007	Sanken Electric USA Inc.	AUTOMOTIVE (IGNITER) 100V/7A(15A Transistor Type: NPN Current - Collector (Ic) (Max): 7 A Voltage - Collector Emitter Breakdown (Max): 100 V Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: 60 @ 500mA, 5V Power - Max: - Frequency - Transition: - Operating Temperature: - Mounting Type: Through Hole Package / Case: TO-220-3 Full Pack Supplier Device Package: TO-220F	封裝: -	Request a Quote	7 A	100 V	-	-	60 @ 500mA, 5V	-	-	-	Through Hole	TO-220-3 Full Pack	TO-220F
MMBTA05_R1_00001	Panjit International Inc.	TRANS NPN 60V 0.5A SOT23 Transistor Type: NPN Current - Collector (Ic) (Max): 500 mA Voltage - Collector Emitter Breakdown (Max): 60 V Vce Saturation (Max) @ Ib, Ic: 250mV @ 10mA, 100mA Current - Collector Cutoff (Max): 100nA DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 100mA, 1V Power - Max: 225 mW Frequency - Transition: 100MHz Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Surface Mount Package / Case: TO-236-3, SC-59, SOT-23-3 Supplier Device Package: SOT-23	封裝: -	庫存8,691	500 mA	60 V	250mV @ 10mA, 100mA	100nA	100 @ 100mA, 1V	225 mW	100MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23
2SC3142-3-TB-E-SY	Sanyo	NPN EPITAXIAL PLANAR SILICON Transistor Type: - Current - Collector (Ic) (Max): - Voltage - Collector Emitter Breakdown (Max): - Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: - Power - Max: - Frequency - Transition: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	封裝: -	Request a Quote	-	-	-	-	-	-	-	-	-	-	-
BC394-PBFREE	Central Semiconductor Corp	TRANS NPN 180V TO18 Transistor Type: NPN Current - Collector (Ic) (Max): - Voltage - Collector Emitter Breakdown (Max): 180 V Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): 50nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 50 @ 10A, 10V Power - Max: - Frequency - Transition: 5MHz Operating Temperature: - Mounting Type: Through Hole Package / Case: TO-206AA, TO-18-3 Metal Can Supplier Device Package: TO-18	封裝: -	Request a Quote	-	180 V	-	50nA (ICBO)	50 @ 10A, 10V	-	5MHz	-	Through Hole	TO-206AA, TO-18-3 Metal Can	TO-18
2N3776	Microchip Technology	POWER BJT Transistor Type: PNP Current - Collector (Ic) (Max): 1 A Voltage - Collector Emitter Breakdown (Max): 80 V Vce Saturation (Max) @ Ib, Ic: - Current - Collector Cutoff (Max): - DC Current Gain (hFE) (Min) @ Ic, Vce: - Power - Max: 5 W Frequency - Transition: - Operating Temperature: - Mounting Type: Through Hole Package / Case: TO-205AA, TO-5-3 Metal Can Supplier Device Package: TO-5AA	封裝: -	Request a Quote	1 A	80 V	-	-	-	5 W	-	-	Through Hole	TO-205AA, TO-5-3 Metal Can	TO-5AA
2SA2199T2LQ	Rohm Semiconductor	TRANSISTOR; BIPOLAR; PNP;VMN3 PK Transistor Type: NPN Current - Collector (Ic) (Max): 100 mA Voltage - Collector Emitter Breakdown (Max): 50 V Vce Saturation (Max) @ Ib, Ic: 400mV @ 50mA, 500mA Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 120 @ 100mA, 3V Power - Max: 150 mW Frequency - Transition: - Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: SOT-923F Supplier Device Package: VMN3	封裝: -	Request a Quote	100 mA	50 V	400mV @ 50mA, 500mA	100nA (ICBO)	120 @ 100mA, 3V	150 mW	-	150°C (TJ)	Surface Mount	SOT-923F	VMN3
2SB1073-Q-AP	Micro Commercial Co	TRANS PNP 20V 4A SOT89 Transistor Type: PNP Current - Collector (Ic) (Max): 4 A Voltage - Collector Emitter Breakdown (Max): 20 V Vce Saturation (Max) @ Ib, Ic: 1V @ 100mA, 3A Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 120 @ 2A, 2V Power - Max: 1 W Frequency - Transition: 120MHz Operating Temperature: 150°C (TJ) Mounting Type: Surface Mount Package / Case: TO-243AA Supplier Device Package: SOT-89	封裝: -	Request a Quote	4 A	20 V	1V @ 100mA, 3A	100nA (ICBO)	120 @ 2A, 2V	1 W	120MHz	150°C (TJ)	Surface Mount	TO-243AA	SOT-89
NTE232	NTE Electronics, Inc	TRANS PNP DARL 30V 0.3A TO92 Transistor Type: PNP - Darlington Current - Collector (Ic) (Max): 300 mA Voltage - Collector Emitter Breakdown (Max): 30 V Vce Saturation (Max) @ Ib, Ic: 1.5V @ 100µA, 100mA Current - Collector Cutoff (Max): 100nA (ICBO) DC Current Gain (hFE) (Min) @ Ic, Vce: 50000 @ 10mA, 5V Power - Max: 625 mW Frequency - Transition: 125MHz Operating Temperature: -55°C ~ 150°C (TJ) Mounting Type: Through Hole Package / Case: TO-226-3, TO-92-3 (TO-226AA) Supplier Device Package: TO-92	封裝: -	Request a Quote	300 mA	30 V	1.5V @ 100µA, 100mA	100nA (ICBO)	50000 @ 10mA, 5V	625 mW	125MHz	-55°C ~ 150°C (TJ)	Through Hole	TO-226-3, TO-92-3 (TO-226AA)	TO-92
2N2907AUBP	Microchip Technology	SMALL-SIGNAL BJT Transistor Type: PNP Current - Collector (Ic) (Max): 600 mA Voltage - Collector Emitter Breakdown (Max): 60 V Vce Saturation (Max) @ Ib, Ic: 1.6V @ 50mA, 500mA Current - Collector Cutoff (Max): 50nA DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 1mA, 10V Power - Max: 500 mW Frequency - Transition: - Operating Temperature: -65°C ~ 200°C (TJ) Mounting Type: Surface Mount Package / Case: 3-SMD, No Lead Supplier Device Package: UB	封裝: -	Request a Quote	600 mA	60 V	1.6V @ 50mA, 500mA	50nA	100 @ 1mA, 10V	500 mW	-	-65°C ~ 200°C (TJ)	Surface Mount	3-SMD, No Lead	UB

2SA1837,S1CSF(J

Toshiba Semiconductor and Storage

TRANS PNP 1A 230V TO220-3

Transistor Type: PNP
Current - Collector (Ic) (Max): 1A
Voltage - Collector Emitter Breakdown (Max): 230V
Vce Saturation (Max) @ Ib, Ic: 1.5V @ 50mA, 500mA
Current - Collector Cutoff (Max): 1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 100mA, 5V
Power - Max: 2W
Frequency - Transition: 70MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack
Supplier Device Package: TO-220NIS

封裝: TO-220-3 Full Pack

庫存2,224

1A

230V

1.5V @ 50mA, 500mA

1µA (ICBO)

100 @ 100mA, 5V

2W

70MHz

150°C (TJ)

Through Hole

TO-220-3 Full Pack

TO-220NIS

2SC4482U-AN

ON Semiconductor

TRANS NPN 20V 5A NMP

Transistor Type: NPN
Current - Collector (Ic) (Max): 5A
Voltage - Collector Emitter Breakdown (Max): 20V
Vce Saturation (Max) @ Ib, Ic: 500mV @ 60mA, 3A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 280 @ 500mA, 2V
Power - Max: 1W
Frequency - Transition: 150MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Through Hole
Package / Case: SC-71
Supplier Device Package: 3-NMP

封裝: SC-71

庫存2,064

5A

20V

500mV @ 60mA, 3A

100nA (ICBO)

280 @ 500mA, 2V

1W

150MHz

150°C (TJ)

Through Hole

SC-71

3-NMP

FJP5200OTU

Fairchild/ON Semiconductor

TRANS NPN 250V 17A TO-220AB

Transistor Type: NPN
Current - Collector (Ic) (Max): 17A
Voltage - Collector Emitter Breakdown (Max): 250V
Vce Saturation (Max) @ Ib, Ic: 3V @ 800mA, 8A
Current - Collector Cutoff (Max): 5µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 80 @ 1A, 5V
Power - Max: 80W
Frequency - Transition: 30MHz
Operating Temperature: -50°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-220-3
Supplier Device Package: TO-220-3

封裝: TO-220-3

庫存7,504

17A

250V

3V @ 800mA, 8A

5µA (ICBO)

80 @ 1A, 5V

80W

30MHz

-50°C ~ 150°C (TJ)

Through Hole

TO-220-3

BUL146FG

ON Semiconductor

TRANS NPN 400V 6A TO-220FP

Transistor Type: NPN
Current - Collector (Ic) (Max): 6A
Voltage - Collector Emitter Breakdown (Max): 400V
Vce Saturation (Max) @ Ib, Ic: 700mV @ 600mA, 3A
Current - Collector Cutoff (Max): 100µA
DC Current Gain (hFE) (Min) @ Ic, Vce: 14 @ 500mA, 5V
Power - Max: 40W
Frequency - Transition: 14MHz
Operating Temperature: -65°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack
Supplier Device Package: TO-220FP

封裝: TO-220-3 Full Pack

庫存87,600

6A

400V

700mV @ 600mA, 3A

100µA

14 @ 500mA, 5V

40W

14MHz

-65°C ~ 150°C (TJ)

Through Hole

TO-220-3 Full Pack

TO-220FP

FJP5021RTU

Fairchild/ON Semiconductor

TRANS NPN 500V 5A TO-220

Transistor Type: NPN
Current - Collector (Ic) (Max): 5A
Voltage - Collector Emitter Breakdown (Max): 500V
Vce Saturation (Max) @ Ib, Ic: 1V @ 600mA, 3A
Current - Collector Cutoff (Max): 10µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 15 @ 600mA, 5V
Power - Max: 50W
Frequency - Transition: 18MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-220-3
Supplier Device Package: TO-220-3

封裝: TO-220-3

庫存2,512

5A

500V

1V @ 600mA, 3A

10µA (ICBO)

15 @ 600mA, 5V

50W

18MHz

150°C (TJ)

Through Hole

TO-220-3

MCH3106-S-TL-E

ON Semiconductor

TRANS PNP 12V 3A MCPH3

Transistor Type: PNP
Current - Collector (Ic) (Max): 3A
Voltage - Collector Emitter Breakdown (Max): 12V
Vce Saturation (Max) @ Ib, Ic: 165mV @ 30mA, 1.5A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 500mA, 2V
Power - Max: 900mW
Frequency - Transition: 280MHz
Operating Temperature: -
Mounting Type: Surface Mount
Package / Case: 3-SMD, Flat Leads
Supplier Device Package: 3-MCPH

封裝: 3-SMD, Flat Leads

庫存4,608

3A

12V

165mV @ 30mA, 1.5A

100nA (ICBO)

200 @ 500mA, 2V

900mW

280MHz

-

Surface Mount

3-SMD, Flat Leads

3-MCPH

ZXTP19100CZTA

Diodes Incorporated

TRANS PNP 100V 2A SOT89

Transistor Type: PNP
Current - Collector (Ic) (Max): 2A
Voltage - Collector Emitter Breakdown (Max): 100V
Vce Saturation (Max) @ Ib, Ic: 295mV @ 200mA, 2A
Current - Collector Cutoff (Max): 50nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 100mA, 2V
Power - Max: 2.4W
Frequency - Transition: 142MHz
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-243AA
Supplier Device Package: SOT-89-3

封裝: TO-243AA

庫存73,152

2A

100V

295mV @ 200mA, 2A

50nA (ICBO)

200 @ 100mA, 2V

2.4W

142MHz

-55°C ~ 150°C (TJ)

Surface Mount

TO-243AA

SOT-89-3

PBSS305NZ,135

Nexperia USA Inc.

TRANS NPN 80V 5.1A SOT-223

Transistor Type: NPN
Current - Collector (Ic) (Max): 5.1A
Voltage - Collector Emitter Breakdown (Max): 80V
Vce Saturation (Max) @ Ib, Ic: 270mV @ 255mA, 5.1A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 180 @ 2A, 2V
Power - Max: 2W
Frequency - Transition: 110MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-261-4, TO-261AA
Supplier Device Package: SOT-223

封裝: TO-261-4, TO-261AA

庫存7,376

5.1A

80V

270mV @ 255mA, 5.1A

100nA (ICBO)

180 @ 2A, 2V

2W

110MHz

150°C (TJ)

Surface Mount

TO-261-4, TO-261AA

SOT-223

TIP31A

Fairchild/ON Semiconductor

TRANS NPN 60V 3A TO-220

Transistor Type: NPN
Current - Collector (Ic) (Max): 3A
Voltage - Collector Emitter Breakdown (Max): 60V
Vce Saturation (Max) @ Ib, Ic: 1.2V @ 375mA, 3A
Current - Collector Cutoff (Max): 300µA
DC Current Gain (hFE) (Min) @ Ic, Vce: 10 @ 3A, 4V
Power - Max: 2W
Frequency - Transition: 3MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-220-3
Supplier Device Package: TO-220-3

封裝: TO-220-3

庫存94,296

3A

60V

1.2V @ 375mA, 3A

300µA

10 @ 3A, 4V

2W

3MHz

150°C (TJ)

Through Hole

TO-220-3

FMB100

Fairchild/ON Semiconductor

TRANS NPN 45V 0.5A SSOT-6

Transistor Type: NPN
Current - Collector (Ic) (Max): 500mA
Voltage - Collector Emitter Breakdown (Max): 45V
Vce Saturation (Max) @ Ib, Ic: 400mV @ 20mA, 200mA
Current - Collector Cutoff (Max): 50nA
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 150mA, 5V
Power - Max: 700mW
Frequency - Transition: 300MHz
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: SOT-23-6 Thin, TSOT-23-6
Supplier Device Package: SuperSOT?-6

封裝: SOT-23-6 Thin, TSOT-23-6

庫存58,386

500mA

45V

400mV @ 20mA, 200mA

50nA

100 @ 150mA, 5V

700mW

300MHz

-55°C ~ 150°C (TJ)

Surface Mount

SOT-23-6 Thin, TSOT-23-6

SuperSOT?-6

ZTX789A

Diodes Incorporated

TRANS PNP 25V 3A E-LINE

Transistor Type: PNP
Current - Collector (Ic) (Max): 3A
Voltage - Collector Emitter Breakdown (Max): 25V
Vce Saturation (Max) @ Ib, Ic: 500mV @ 100mA, 3A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 10mA, 2V
Power - Max: 1W
Frequency - Transition: 100MHz
Operating Temperature: -55°C ~ 200°C (TJ)
Mounting Type: Through Hole
Package / Case: E-Line-3
Supplier Device Package: E-Line (TO-92 compatible)

封裝: E-Line-3

庫存380,604

3A

25V

500mV @ 100mA, 3A

100nA (ICBO)

300 @ 10mA, 2V

1W

100MHz

-55°C ~ 200°C (TJ)

Through Hole

E-Line-3

E-Line (TO-92 compatible)

2SC4467

Sanken

TRANS NPN 120V 8A TO3P

Transistor Type: NPN
Current - Collector (Ic) (Max): 8A
Voltage - Collector Emitter Breakdown (Max): 120V
Vce Saturation (Max) @ Ib, Ic: 1.5V @ 300mA, 3A
Current - Collector Cutoff (Max): 10µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 50 @ 3A, 4V
Power - Max: 80W
Frequency - Transition: 20MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-3P-3, SC-65-3
Supplier Device Package: TO-3P

封裝: TO-3P-3, SC-65-3

庫存15,144

8A

120V

1.5V @ 300mA, 3A

10µA (ICBO)

50 @ 3A, 4V

80W

20MHz

150°C (TJ)

Through Hole

TO-3P-3, SC-65-3

TO-3P

MJE200G

ON Semiconductor

TRANS NPN 40V 5A TO225AA

Transistor Type: NPN
Current - Collector (Ic) (Max): 5A
Voltage - Collector Emitter Breakdown (Max): 40V
Vce Saturation (Max) @ Ib, Ic: 1.8V @ 1A, 5A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 45 @ 2A, 1V
Power - Max: 15W
Frequency - Transition: 65MHz
Operating Temperature: -65°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-225AA, TO-126-3
Supplier Device Package: TO-225AA

封裝: TO-225AA, TO-126-3

庫存6,304

5A

40V

1.8V @ 1A, 5A

100nA (ICBO)

45 @ 2A, 1V

15W

65MHz

-65°C ~ 150°C (TJ)

Through Hole

TO-225AA, TO-126-3

TO-225AA

PBSS4350X,135

Nexperia USA Inc.

TRANS NPN 50V 3A SOT89

Transistor Type: NPN
Current - Collector (Ic) (Max): 3A
Voltage - Collector Emitter Breakdown (Max): 50V
Vce Saturation (Max) @ Ib, Ic: 370mV @ 300mA, 3A
Current - Collector Cutoff (Max): 100nA
DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 1A, 2V
Power - Max: 1.6W
Frequency - Transition: 100MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-243AA
Supplier Device Package: SOT-89-3

封裝: TO-243AA

庫存71,712

3A

50V

370mV @ 300mA, 3A

100nA

300 @ 1A, 2V

1.6W

100MHz

150°C (TJ)

Surface Mount

TO-243AA

SOT-89-3

FGPF4636YDTU

onsemi

INTEGRATED CIRCUIT

Transistor Type: -
Current - Collector (Ic) (Max): -
Voltage - Collector Emitter Breakdown (Max): -
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: -
Power - Max: -
Frequency - Transition: -
Operating Temperature: -
Mounting Type: -
Package / Case: -
Supplier Device Package: -

封裝: -

Request a Quote

-

BC636-16ZL1

onsemi

SMALL SIGNAL BIPOLAR TRANSISTOR

Transistor Type: PNP
Current - Collector (Ic) (Max): 1 A
Voltage - Collector Emitter Breakdown (Max): 45 V
Vce Saturation (Max) @ Ib, Ic: 500mV @ 50mA, 500mA
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 150mA, 2V
Power - Max: 1.5 W
Frequency - Transition: 150MHz
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package: TO-92 (TO-226)

封裝: -

Request a Quote

1 A

45 V

500mV @ 50mA, 500mA

100nA (ICBO)

100 @ 150mA, 2V

1.5 W

150MHz

-55°C ~ 150°C (TJ)

Through Hole

TO-226-3, TO-92-3 (TO-226AA)

TO-92 (TO-226)

2SA1622-6-TL-E

onsemi

PNP SILICON TRANSISTOR

Transistor Type: -
Current - Collector (Ic) (Max): -
Voltage - Collector Emitter Breakdown (Max): -
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: -
Power - Max: -
Frequency - Transition: -
Operating Temperature: -
Mounting Type: -
Package / Case: -
Supplier Device Package: -

封裝: -

Request a Quote

-

2N706

Microchip Technology

NPN TRANSISTOR

Transistor Type: -
Current - Collector (Ic) (Max): -
Voltage - Collector Emitter Breakdown (Max): -
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: -
Power - Max: -
Frequency - Transition: -
Operating Temperature: -
Mounting Type: -
Package / Case: -
Supplier Device Package: -

封裝: -

Request a Quote

-

BC858AWHE3-TP

Micro Commercial Co

PNP TRANSISTORS, SOT-323

Transistor Type: PNP
Current - Collector (Ic) (Max): 100 mA
Voltage - Collector Emitter Breakdown (Max): 30 V
Vce Saturation (Max) @ Ib, Ic: 650mV @ 5mA, 100mA
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 125 @ 2mA, 5V
Power - Max: 150 mW
Frequency - Transition: 100MHz
Operating Temperature: -65°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: SC-70, SOT-323
Supplier Device Package: SOT-323

封裝: -

庫存17,970

100 mA

30 V

650mV @ 5mA, 100mA

100nA (ICBO)

125 @ 2mA, 5V

150 mW

100MHz

-65°C ~ 150°C (TJ)

Surface Mount

SC-70, SOT-323

SOT-323

FCG1007

Sanken Electric USA Inc.

AUTOMOTIVE (IGNITER) 100V/7A(15A

Transistor Type: NPN
Current - Collector (Ic) (Max): 7 A
Voltage - Collector Emitter Breakdown (Max): 100 V
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: 60 @ 500mA, 5V
Power - Max: -
Frequency - Transition: -
Operating Temperature: -
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack
Supplier Device Package: TO-220F

封裝: -

Request a Quote

7 A

100 V

-

60 @ 500mA, 5V

-

Through Hole

TO-220-3 Full Pack

TO-220F

MMBTA05_R1_00001

Panjit International Inc.

TRANS NPN 60V 0.5A SOT23

Transistor Type: NPN
Current - Collector (Ic) (Max): 500 mA
Voltage - Collector Emitter Breakdown (Max): 60 V
Vce Saturation (Max) @ Ib, Ic: 250mV @ 10mA, 100mA
Current - Collector Cutoff (Max): 100nA
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 100mA, 1V
Power - Max: 225 mW
Frequency - Transition: 100MHz
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3
Supplier Device Package: SOT-23

封裝: -

庫存8,691

500 mA

60 V

250mV @ 10mA, 100mA

100nA

100 @ 100mA, 1V

225 mW

100MHz

-55°C ~ 150°C (TJ)

Surface Mount

TO-236-3, SC-59, SOT-23-3

SOT-23

2SC3142-3-TB-E-SY

Sanyo

NPN EPITAXIAL PLANAR SILICON

Transistor Type: -
Current - Collector (Ic) (Max): -
Voltage - Collector Emitter Breakdown (Max): -
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: -
Power - Max: -
Frequency - Transition: -
Operating Temperature: -
Mounting Type: -
Package / Case: -
Supplier Device Package: -

封裝: -

Request a Quote

-

BC394-PBFREE

Central Semiconductor Corp

TRANS NPN 180V TO18

Transistor Type: NPN
Current - Collector (Ic) (Max): -
Voltage - Collector Emitter Breakdown (Max): 180 V
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): 50nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 50 @ 10A, 10V
Power - Max: -
Frequency - Transition: 5MHz
Operating Temperature: -
Mounting Type: Through Hole
Package / Case: TO-206AA, TO-18-3 Metal Can
Supplier Device Package: TO-18

封裝: -

Request a Quote

-

180 V

-

50nA (ICBO)

50 @ 10A, 10V

-

5MHz

-

Through Hole

TO-206AA, TO-18-3 Metal Can

TO-18

2N3776

Microchip Technology

POWER BJT

Transistor Type: PNP
Current - Collector (Ic) (Max): 1 A
Voltage - Collector Emitter Breakdown (Max): 80 V
Vce Saturation (Max) @ Ib, Ic: -
Current - Collector Cutoff (Max): -
DC Current Gain (hFE) (Min) @ Ic, Vce: -
Power - Max: 5 W
Frequency - Transition: -
Operating Temperature: -
Mounting Type: Through Hole
Package / Case: TO-205AA, TO-5-3 Metal Can
Supplier Device Package: TO-5AA

封裝: -

Request a Quote

1 A

80 V

-

5 W

-

Through Hole

TO-205AA, TO-5-3 Metal Can

TO-5AA

2SA2199T2LQ

Rohm Semiconductor

TRANSISTOR; BIPOLAR; PNP;VMN3 PK

Transistor Type: NPN
Current - Collector (Ic) (Max): 100 mA
Voltage - Collector Emitter Breakdown (Max): 50 V
Vce Saturation (Max) @ Ib, Ic: 400mV @ 50mA, 500mA
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 120 @ 100mA, 3V
Power - Max: 150 mW
Frequency - Transition: -
Operating Temperature: 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: SOT-923F
Supplier Device Package: VMN3

封裝: -

Request a Quote

100 mA

50 V

400mV @ 50mA, 500mA

100nA (ICBO)

120 @ 100mA, 3V

150 mW

-

150°C (TJ)

Surface Mount

SOT-923F

VMN3

2SB1073-Q-AP

Micro Commercial Co

TRANS PNP 20V 4A SOT89

Transistor Type: PNP
Current - Collector (Ic) (Max): 4 A
Voltage - Collector Emitter Breakdown (Max): 20 V
Vce Saturation (Max) @ Ib, Ic: 1V @ 100mA, 3A
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 120 @ 2A, 2V
Power - Max: 1 W
Frequency - Transition: 120MHz
Operating Temperature: 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-243AA
Supplier Device Package: SOT-89

封裝: -

Request a Quote

4 A

20 V

1V @ 100mA, 3A

100nA (ICBO)

120 @ 2A, 2V

1 W

120MHz

150°C (TJ)

Surface Mount

TO-243AA

SOT-89

NTE232

NTE Electronics, Inc

TRANS PNP DARL 30V 0.3A TO92

Transistor Type: PNP - Darlington
Current - Collector (Ic) (Max): 300 mA
Voltage - Collector Emitter Breakdown (Max): 30 V
Vce Saturation (Max) @ Ib, Ic: 1.5V @ 100µA, 100mA
Current - Collector Cutoff (Max): 100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce: 50000 @ 10mA, 5V
Power - Max: 625 mW
Frequency - Transition: 125MHz
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Through Hole
Package / Case: TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package: TO-92

封裝: -

Request a Quote

300 mA

30 V

1.5V @ 100µA, 100mA

100nA (ICBO)

50000 @ 10mA, 5V

625 mW

125MHz

-55°C ~ 150°C (TJ)

Through Hole

TO-226-3, TO-92-3 (TO-226AA)

TO-92

2N2907AUBP

Microchip Technology

SMALL-SIGNAL BJT

Transistor Type: PNP
Current - Collector (Ic) (Max): 600 mA
Voltage - Collector Emitter Breakdown (Max): 60 V
Vce Saturation (Max) @ Ib, Ic: 1.6V @ 50mA, 500mA
Current - Collector Cutoff (Max): 50nA
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 1mA, 10V
Power - Max: 500 mW
Frequency - Transition: -
Operating Temperature: -65°C ~ 200°C (TJ)
Mounting Type: Surface Mount
Package / Case: 3-SMD, No Lead
Supplier Device Package: UB

封裝: -

Request a Quote

600 mA

60 V

1.6V @ 50mA, 500mA

50nA

100 @ 1mA, 10V

500 mW

-

-65°C ~ 200°C (TJ)

Surface Mount

3-SMD, No Lead

UB