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

PMST2222A,115

Bipolar (BJT) Transistor NPN 40 V 600 mA 300MHz 200 mW Surface Mount SOT-323
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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.

Nexperia

3373
Ships to you
between Tue. 25 Aug to Mon. 31 Aug

August 2026

August 2026
	S	M	T	W	T	F	S
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8
33	9	10	11	12	13	14	15
34	16	17	18	19	20	21	22
35	23	24	25	26	27	28	29
36	30	31	1	2	3	4	5

AUD 0.0471

Multiples of: 1

MMBT5551

Bipolar (BJT) Transistor NPN 150V 0.6A 225mW Surface Mount SOT-23
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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.

2376
Ships to you
between Tue. 08 Sep to Fri. 11 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 0.0139

Multiples of: 50

S9013-G

Transistors (NPN/PNP) NPN 500mA 25V SOT-23 (SOT-23-3) 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.

Changjing Electronics Technology

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 0.0131

Multiples of: 50

BC81816MTF

Transistors Bipolar - BJT NPN Si Transistor Epitaxial
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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

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 0.0131

Multiples of: 1

MMBT4403

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.

Doeshare

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 0.0131

Multiples of: 50

MMBT3904M

SOT-723 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.

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 0.0131

Multiples of: 50

BC847CW

SOT-323 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.

Hong Kong Chuangji

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 0.0131

Multiples of: 50

2SA812-M6

Transistors (NPN/PNP) SOT-23 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.

KEXIN

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 0.0131

Multiples of: 50

TM2301BI

SOT-23 MOSFETs 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.

Tritech-MOS

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 0.0131

Multiples of: 50

BC847C

New Quadratic Unclassified Data SOT-23 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.

AnBon

0
6 to 16 Weeks

January 2027