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

DTC143EUA

Digital Transistors NPN - Pre-Biased 100mA 50V SC-70 (SC-70-3) 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

18721
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0304

Multiples of: 50

L9012QLT1G

Transistors (NPN/PNP) PNP 500mA 20V 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.

Leshan

7818
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0177

Multiples of: 20

NHUMH1X

Pre-Biased Bipolar Transistor (BJT) 2 NPN - Pre-Biased (Dual) 80V 100mA 170MHz 350mW Surface Mount 6-TSSOP
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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

5727
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

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

AUD 0.0788

Multiples of: 1

RN1425TE85LF

Toshiba Bipolar Transistors - Pre-Biased NPN 50V 0.8A TRANSISTOR LOG
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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.

Toshiba

5710
Ships to you
between Thu. 23 Jul to Mon. 27 Jul

July 2026

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

AUD 0.1182

Multiples of: 1

SP2006KT3

SOT-323 MOSFETs 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.

Siliup

5674
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0123

Multiples of: 50

2SC3585 R45

Transistors (NPN/PNP) SOT-23-3L 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.

SLKORMICRO

5582
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0824

Multiples of: 5

MMDT5551

Bipolar (BJT) Transistor 150V 600mA 100MHz 300mW Surface Mount SOT-363
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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.

GOODWORK

4966
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0238

Multiples of: 20

AP3101A

30V 10A 16mΩ@20V,10A P Channel SOT23-3 MOSFETs 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.

Quan Li

3880
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.1551

Multiples of: 10

PT23T3904

Transistors (NPN/PNP) NPN 200mA 40V 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.

Prisemi

1891
Ships to you
between Fri. 31 Jul to Wed. 05 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 0.0173

Multiples of: 50

MMBF170

SOT-23 MOSFETs 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.

TECH PUBLIC

601
Ships to you
between Fri. 31 Jul to Wed. 05 Aug

August 2026