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	Availability ⓘ (▲▼)	Price(AUD) (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

BC857C

SOT-23 Bipolar Transistors - BJT ROHS
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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.

TWGMC

19400
Ships to you
between Fri. 27 Feb to Wed. 04 Mar

March 2026

March 2026
	S	M	T	W	T	F	S
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7
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12	15	16	17	18	19	20	21
13	22	23	24	25	26	27	28
14	29	30	31	1	2	3	4

AUD 0.0116

Multiples of: 50

BC857CLT3G

ON Semiconductor Bipolar Transistors - BJT 45V 100mA PNP SILCON
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0201

Multiples of: 10000

Smd/Smt

SOT - 23

Pnp

Single

0.1 A

45 V

50 V

5 V

- 700 mV

300 mW

100 Mhz

- 55 C

+ 150 C

Aec - Q101

Bc857cl

Reel

MBT3904DW1T3G

ON Semiconductor Bipolar Transistors - BJT 200mA 60V Dual NPN
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0284

Multiples of: 10000

Smd/Smt

SC - 70 - 6

Npn

Dual

0.2 A

- 35 V

- 55 V

6 V

0.3 V

625 mW

300 Mhz

- 55 C

+ 150 C

Aec - Q101

Mbt3904dw1

Reel

BC557BBK

Transistor: PNP; bipolar; 45V; 100mA; 500mW; TO92
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0308

Multiples of: 5000

MMBT2484LT3G

Bipolar Transistors - BJT SS LN XSTR NPN 60V
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0476

Multiples of: 10000

Smd/Smt

SOT - 23

Npn

Single

0.1 A

60 V

6 V

0.35 V

225 mW

650 Mhz

- 55 C

+ 150 C

Aec - Q101

Mmbt2484l

Reel

BC556ABU

Bipolar (BJT) Transistor PNP 65 V 100 mA 150MHz 500 mW Through Hole TO-92-3
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0496

Multiples of: 500

Through Hole

TO - 92

Pnp

Single

0.1 A

- 65 V

- 80 V

- 5 V

- 250 mV

500 mW (1/2 w)

150 Mhz

- 65 C

+ 150 C

Bc556

Bulk

BC559CTA

Transistors Bipolar - BJT Transistor PNP Epitaxial Silicon
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0517

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Pnp

Single

0.1 A

30 V

5 V

150 Mhz

- 65 C

+ 150 C

Bc559

Ammo Pack

2N4403TFR

Transistors Bipolar - BJT PNP Transistor General Purpose
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0524

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Pnp

Single

0.6 A

40 V

5 V

0.75 V

200 Mhz

- 55 C

+ 150 C

2N4403

Reel

2N4403TF

Bipolar Transistors - BJT PNP Transistor General Purpose
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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

19400
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026

February 2026
	S	M	T	W	T	F	S
5	25	26	27	28	29	30	31
6	1	2	3	4	5	6	7
7	8	9	10	11	12	13	14
8	15	16	17	18	19	20	21
9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7

AUD 0.0524

Multiples of: 2000

Through Hole

TO - 92 - 3 K in KED LEAD

Pnp

Single

0.6 A

40 V

5 V

0.75 V

625 mW

200 Mhz

- 55 C

+ 150 C

2N4403

Cut Tape

BC559BTA

Transistors Bipolar - BJT TO-92 PNP GP AMP
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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

17460
Ships to you
between Fri. 13 Feb to Thu. 19 Feb

February 2026