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

AO3442A

SOT-23-3 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.

Youtai

19041
Ships to you
between Thu. 05 Mar to Tue. 10 Mar

March 2026

March 2026
	S	M	T	W	T	F	S
9	22	23	24	25	26	27	28
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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 0.0421

Multiples of: 10

TSM05N03CW RPG

MOSFET 30V 5A Single N-Channel Power MOSFET
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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.

Taiwan Semiconductor

18970
Ships to you
between Wed. 25 Feb to Fri. 27 Feb

February 2026

February 2026
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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 0.3497

Multiples of: 1

MMBT5551

Transistors (NPN/PNP) NPN 600mA 160V 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.

Shikues

18963
Ships to you
between Thu. 05 Mar to Tue. 10 Mar

March 2026

March 2026
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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 0.0123

Multiples of: 50

IPD135N03LG

Transistor: N-MOSFET; unipolar; 30V; 21A; 31W; PG-TO252-3
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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.

Infineon

18956
Ships to you
between Wed. 25 Feb to Fri. 27 Feb

February 2026

February 2026
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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 0.2857

Multiples of: 1

2SCR523MT2L

Bipolar Transistors - BJT NPN General Purpose Amplification Transistor
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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.

ROHM

18951
Ships to you
between Wed. 25 Feb to Fri. 27 Feb

February 2026

February 2026
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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 0.0591

Multiples of: 1

D44H11

Transistor: NPN; bipolar; 80V; 10A; 50W; TO220AB
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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.

STMicroelectronics

18919
Ships to you
between Thu. 05 Mar to Tue. 10 Mar

March 2026

March 2026
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9	22	23	24	25	26	27	28
10	1	2	3	4	5	6	7
11	8	9	10	11	12	13	14
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 0.4149

Multiples of: 1

BC547CBU

Transistors Bipolar - BJT NPN 45V 100mA HFE/800
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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

18915
Ships to you
between Thu. 19 Feb to Wed. 25 Feb

February 2026

February 2026
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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 0.066

Multiples of: 500

DTC044EUBTL

Bipolar Transistors - Pre-Biased NPN Digital Transtr w/built in resistors
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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.

ROHM

18897
Ships to you
between Wed. 25 Feb to Fri. 27 Feb

February 2026

February 2026
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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 0.0525

Multiples of: 1

AP1606

20V 700mA 180mΩ@2.5V,300mA 550mW N Channel DFN-3L(0.6x1) 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

18890
Ships to you
between Thu. 05 Mar to Tue. 10 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
11	8	9	10	11	12	13	14
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 0.0382

Multiples of: 50

2SD669AD-C

Transistors (NPN/PNP) NPN 1.5A 160V TO-252 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.

Blue Rocket

18878
Ships to you
between Thu. 05 Mar to Tue. 10 Mar

March 2026