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

FMMT591

Transistors (NPN/PNP) SOT-23 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.

Pingjingsemi

Availability : 37252
Ship by Fri. 14 Nov to Thu. 20 Nov

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 0.0203

Multiples of: 10

S9013

Transistors (NPN/PNP) SOT-23 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 : 37151
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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 0.0069

Multiples of: 50

BC 857B E6433

Infineon Technologies Bipolar Transistors - BJT PNP Silicon AF TRANSISTOR

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.

Infineon

Availability : 36920
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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 0.0297

Multiples of: 1

Smd/Smt

SOT - 23

Pnp

Single

0.1 A

45 V

50 V

5 V

650 mV

330 mW

250 Mhz

- 65 C

+ 150 C

Bc857

Reel

2N3906TFR

Transistors Bipolar - BJT PNP Transistor General Purpose

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ON Semiconductor

Availability : 36860
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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 0.0374

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Pnp

Single

0.2 A

- 40 V

- 5 V

- 0.4 V

250 Mhz

- 55 C

+ 150 C

2N3906

Reel

BF720T1G

Transistors Bipolar - BJT 100mA 300V NPN

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 : 36860
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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 0.154

Multiples of: 1000

Smd/Smt

SOT - 223 - 4

Npn

Single

0.1 A

300 V

5 V

0.6 V

1.5 W

60 Mhz

- 65 C

+ 150 C

Aec - Q101

Bf720

Reel

LMBT4401LT1G

Transistors (NPN/PNP) NPN 600mA 40V SOT-23 (SOT-23-3) 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.

Leshan

Availability : 36739
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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 0.0071

Multiples of: 50

MMBT5551

Transistors (NPN/PNP) SOT-23 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 : 36617
Ship by Fri. 14 Nov to Thu. 20 Nov

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 0.0097

Multiples of: 50

9014-C

Transistors (NPN/PNP) NPN 100mA 45V TO-92 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.

Blue Rocket

Availability : 36405
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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 0.0132

Multiples of: 20

BC 848B E6327

Infineon Technologies Bipolar Transistors - BJT NPN Silicon AF TRANSISTOR

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.

Infineon

Availability : 36338
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November 2025

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44	26	27	28	29	30	31	1
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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 0.033

Multiples of: 1

Smd/Smt

SOT - 23

Npn

Single

100 mA

30 V

6 V

900 mV

330 mW

250 Mhz

- 65 C

+ 150 C

Bc848

Reel

MMBT3906-G

Bipolar Transistors - BJT VCEO=40V IC=100mA

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 : 36288
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November 2025

November 2025
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44	26	27	28	29	30	31	1
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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 0.0253

Multiples of: 1

Silicon

Smd/Smt

SOT - 23

Pnp

Single

- 0.2 A

- 40 V

- 5 V

- 0.4 V

200 mW (1/5 w)

300 Mhz

- 55 C

+ 150 C

Mmbt3906

Reel

MMBT3904WT1G

Transistors Bipolar - BJT 200mA 60V NPN

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 : 35909
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
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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 0.0136

Multiples of: 20

Smd/Smt

SC - 70 - 3

Npn

Single

0.2 A

40 V

60 V

6 V

0.3 V

300 Mhz

- 55 C

+ 150 C

Mmbt3904w

Reel

BC817K-40HVL

Bipolar Transistors - BJT 45 V, 500 mA NPN general-purpose transistors

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 : 35766
Ship by Wed. 12 Nov to Fri. 14 Nov

November 2025

November 2025
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44	26	27	28	29	30	31	1
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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 0.033

Multiples of: 1

Smd/Smt

SOT - 23 - 3

Npn

Single

500 mA

45 V

50 V

5 V

700 mV

775 mW

100 Mhz

- 55 C

+ 150 C

Cut Tape

ZXTN2020FTA

Bipolar (BJT) Transistor NPN 100 V 4 A 130MHz 1.2 W Surface Mount SOT-23-3

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.

Diodes Incorporated

Availability : 35534
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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 0.2882

Multiples of: 1

Smd/smt

SOT - 23

Npn

Single

4 A

100 V

160 V

7 V

1560 mW

130_Mhz

- 55 C

+ 150 C

Zxtn202

Reel

MPSA42

Transistor: NPN; bipolar; 300V; 500mA; 625mW; 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.

Diotec

Availability : 35343
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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 0.0304

Multiples of: 0

SS8050

Transistors (NPN/PNP) SOT-23 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.

FUXINSEMI

Availability : 35114
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
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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 0.0072

Multiples of: 50

BD139

Transistor: NPN; bipolar; 80V; 1.5A; 12W; SOT32

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.

STMicroelectronics

Availability : 34017
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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 0.108

Multiples of: 5

NPN

MMBT2222ALP4-7B

Diodes Incorporated Bipolar Transistors - BJT General Purpose Tran X2-DFN1006-3 T&R 10K

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 : 25015
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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
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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 0.0374

Multiples of: 1

Smd/Smt

X2 - DFN1006 - 3

Npn

Single

0.6 A

40 V

75 V

6 V

0.3 V

300 Mhz

- 55 C

+ 150 C

Mmbt2222

Reel

BCX70K,215

Bipolar (BJT) Transistor NPN 45 V 100 mA 250MHz 250 mW Surface Mount TO-236AB

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 : 14550
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
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 0.0361

Multiples of: 1

Smd/Smt

SOT - 23

Npn

Single

0.1 A

45 V

5 V

250 mW

250 Mhz

- 65 C

+ 150 C

Reel

BC33725TA

Transistor: NPN; bipolar; 45V; 0.8A; 625mW; 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.

ON Semiconductor

Availability : 10806
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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 0.027

Multiples of: 1

FZT658TA

Bipolar (BJT) Transistor NPN 400 V 500 mA 50MHz 2 W Surface Mount SOT-223-3

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.

Diodes Incorporated

Availability : 5820
Ship by Fri. 14 Nov to Thu. 20 Nov

November 2025