About Transistors

Transistors

A transistor is a semiconductor device that is commonly used to amplify or switch electronic signals. It consists of three terminals, normally referred to as the emitter, base and collector. The transistor operates in four main states: cutoff, forward active, reverse active and saturation. It acts as an electrical switch when forward biased, meaning a current is allowed to flow between the two terminals. When it is reverse biased, meaning the current flows in the opposite direction, the device is turned off. Transistors are used in amplifying circuits to amplify voltage, current, or even power. They are also used in digital logic circuits to switch between two or more stable states.

Transistors

Bipolar Transistors - BJT

Bipolar Transistors - Pre-Biased

Darlington Transistors

Digital Transistors

GaN FETs

IGBT Modules

IGBT Transistors

IGBTs

JFETs

MOSFETs

RF Transistors

SiC MOSFETs

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty

PMBT3904-HXY

Bipolar (BJT) Transistor 40V 200mA 300MHz 200mW Surface Mount SOT-23
Icon 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

2910
Ships to you
between Fri. 04 Sep to Wed. 09 Sep

September 2026

September 2026
	S	M	T	W	T	F	S
36	30	31	1	2	3	4	5
37	6	7	8	9	10	11	12
38	13	14	15	16	17	18	19
39	20	21	22	23	24	25	26
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10

AUD 0.0095

Multiples of: 50

BC857B

45V 200mW 475@2mA,5V 100mA PNP SOT-23 Bipolar (BJT) ROHS
Icon 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.

SINEDEVICE

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

BC848C

30V 200mW 800@2mA,5V 100mA NPN SOT-23 Bipolar (BJT) ROHS
Icon 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.

SINEDEVICE

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

BC847B

45V 200mW 450@2mA,5V 100mA NPN SOT-23 Bipolar (BJT) ROHS
Icon 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.

SINEDEVICE

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

BC856B

65V 200mW 475@2mA,5V 100mA PNP SOT-23 Bipolar (BJT) ROHS
Icon 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.

SINEDEVICE

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

BC846B

65V 200mW 450@2mA,5V 100mA NPN SOT-23 Bipolar (BJT) ROHS
Icon 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.

SINEDEVICE

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

BC847B

45V 200mW 450@2mA,5V 100mA NPN SOT-23 Bipolar Transistors - BJT ROHS
Icon 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.

YFW Electronics

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0088

Multiples of: 50

MMBT3904T

40V 150mW 300@10mA,1V 200mA NPN SOT-523 Bipolar Transistors - BJT ROHS
Icon 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.

Shikues

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0089

Multiples of: 50

MMBT3904

SOT-23 Bipolar Transistors - BJT ROHS
Icon 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.

Agertech

0
6 to 16 Weeks

January 2027

January 2027
	S	M	T	W	T	F	S
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9
3	10	11	12	13	14	15	16
4	17	18	19	20	21	22	23
5	24	25	26	27	28	29	30
6	31	1	2	3	4	5	6

AUD 0.0089

Multiples of: 50

BC847C

SOT-23 Bipolar Transistors - BJT ROHS
Icon 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.

Doeshare

0
6 to 16 Weeks

January 2027