About Bipolar Transistors - BJT

Bipolar Transistors - BJT

Bipolar junction transistors (BJTs) are a type of transistor used in electronics and signal processing circuits. They are composed of two pn-junctions in a three-terminal device. In the most common configuration, the BJT acts as an amplifier and can be used to amplify both voltage and current. BJTs can also be used in a switching configuration, where they are used to control the flow of current in a circuit. BJTs are versatile and can be used in a wide range of applications, from computers and consumer electronics to industrial and medical control systems.

Bipolar Transistors - BJT

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Image	Stock Code(▲▼)	Description	Manufacturer	Global Stock ⓘ (▲▼)	Price(USD) (Ex. GST)(▲▼)	Enter Qty	Technology	Mounting Style	Package / Case	Transistor Polarity	Configuration	Maximum DC Collector Current	Collector- Emitter Voltage VCEO Max	Collector- Base Voltage VCBO	Emitter- Base Voltage VEBO	Collector-Emitter Saturation Voltage	Pd - Power Dissipation	Gain Bandwidth Product fT	Minimum Operating Temperature	Maximum Operating Temperature	Qualification	Series	Packaging

MMBTA44

350V 350mW 50@10mA,10V 200mA NPN SOT-23 Bipolar Transistors - BJT ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

HXY MOS

Availability : 9835
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.018

Multiples of: 20

BC857BMB,315

NXP Semiconductors Bipolar Transistors - BJT -45V PNP 100mA 250mW

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Nexperia

Availability : 9797
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0353

Multiples of: 10

Smd/Smt

SOT - 883B - 3

Pnp

Single

- 200 mA

- 45 V

- 50 V

- 5 V

- 200 mV

250 mW

100 Mhz

- 55 C

+ 150 C

Reel

BC856BQ-7-F

Bipolar Transistors - BJT General Purpose Transistor SOT23 T&R 3K

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated

Availability : 9789
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
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45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.022

Multiples of: 1

MMBTA56-HF

Bipolar Transistors - BJT TRANS PNP 80V 225mW SOT-23

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Comchip

Availability : 9772
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
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45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0521

Multiples of: 1

Cut Tape

FMMT491

60V 250mW 300 1A NPN SOT-23 Bipolar Transistors - BJT ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourne

Availability : 9738
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0259

Multiples of: 10

FMMT6520TA

Transistors Bipolar - BJT PNP High Voltage

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated

Availability : 9727
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0891

Multiples of: 1

Smd/Smt

SOT - 23

Pnp

Single

0.5 A

350 V

- 5 V

- 1 V

330 mW

50 Mhz

- 55 C

+ 150 C

Fmmt6520

Reel

DMMT5551S-7-F

Transistors Bipolar - BJT NPN BIPOLAR

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated

Availability : 9720
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.077

Multiples of: 1

Smd/Smt

SOT - 26

Npn

Dual

0.2 A

160 V

180 V

6 V

200 mV

300 mW

300 Mhz

- 55 C

+ 150 C

Dmmt5551s

Reel

MMBT3906LP

40V 200mW 300@10mA,1V 200mA PNP DFN1006-3L Bipolar Transistors - BJT ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Yongyutai Electronics

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0114

Multiples of: 50

MMBT3906N3

SOT-883(DNF1006-3) Bipolar Transistors - BJT ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Tak Cheong

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0118

Multiples of: 20

TK3906LED03

WBFBP-03E Bipolar Transistors - BJT ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Changjing Electronics Technology

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
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47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0142

Multiples of: 20

2N3904

Transistors Bipolar - BJT NPN Gen Pur SS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Central Semiconductor

Availability : 9700
Ship by Tue. 18 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.015

Multiples of: 2000

Through Hole

TO - 92

Npn

Single

0.2 A

40 V

60 V

6 V

0.3 V

625 mW

300 Mhz

- 55 C

+ 150 C

2N3904

Bulk

MPS2222A

Transistor: NPN; bipolar; 40V; 0.8A; TO92

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Luguang

Availability : 9700
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0182

Multiples of: 25

BC856BDW1T3G

ON Semiconductor Bipolar Transistors - BJT 100mA 80V Dual PNP

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0248

Multiples of: 10000

Smd/Smt

SC - 70 - 6

Pnp

Dual

0.1 A

- 65 V

- 80 V

- 5 V

- 0.65 V

380 mW

100 Mhz

- 55 C

+ 150 C

Aec - Q101

Bc856b

Reel

SMMBTA56WT3G

Trans GP BJT PNP 80V 0.5A Automotive 3-Pin SC-70 T/R

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 9700
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0308

Multiples of: 1

SMMBT2222ALT3G

Transistors Bipolar - BJT SS GP XSTR SPCL TR

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0314

Multiples of: 10000

Smd/Smt

SOT - 23

Npn

Single

1100 mA

40 V

75 VDC

6 V

1 V

300 Mhz

- 55 C

+ 150 C

Mmbt2222al

Reel

BC640-16

Transistor: PNP; bipolar; 80V; 1A; 0.83W; TO92

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Luguang

Availability : 9700
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0333

Multiples of: 20

2N4401TF

Bipolar Transistors - BJT NPN Transistor General Purpose

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0366

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Npn

Single

0.6 A

40 V

60 V

6 V

0.75 V

625 mW

250 Mhz

- 55 C

+ 150 C

2N4401

Cut Tape

BC557BTF

Transistors Bipolar - BJT PNP Si Transistor Epitaxial

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 9700
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0384

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Pnp

Single

0.1 A

- 45 V

- 50 V

- 5 V

- 250 mV

150 Mhz

- 65 C

+ 150 C

Bc557

Reel

PN2222ATFR

Bipolar (BJT) Transistor NPN 40 V 1 A 300MHz 625 mW Through Hole TO-92-3

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

Availability : 1940
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.0376

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Npn

Single

1 A

40 V

75 V

6 V

1 V

300 Mhz

- 55 C

+ 150 C

Pn2222

Reel

PBSS4240DPN,115

Transistor: NPN / PNP; bipolar; matched pair; 40V; 1.35/1.1A; 1.1W

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Nexperia

Availability : 3
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025