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

BC817BPN

Bipolar Transistors - BJT Bipolar Transistor, SOT-26, 45V, 500mA, NPN+PNP
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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

8681
Ships to you
between Fri. 04 Sep to Thu. 10 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 0.14

Multiples of: 1

BD139

Transistor: NPN; bipolar; 80V; 1.5A; 8W; TO126
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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.

CDIL

1031
Ships to you
between Fri. 04 Sep to Thu. 10 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 0.146

Multiples of: 5

WD2803Q

QFN-20 Darlington Transistor Arrays 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.

Wade Semiconductor

0
6 to 16 Weeks

February 2027

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

AUD 0.1354

Multiples of: 5

80N03NF

30V 82A 37W 4.3m@10V,20A 2.5V@250uA 1PCSNChannel PDFN-8(5x6) 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.

GOODWORK

0
6 to 16 Weeks

February 2027

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

AUD 0.1356

Multiples of: 5

IRLML2244PBF-HXY

20V 5A 35m 1PCSPChannel 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.

HXY MOS

0
6 to 16 Weeks

February 2027

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

AUD 0.1356

Multiples of: 5

3DD13003F6

Transistors (NPN/PNP) NPN 1.5A 400V TO-126 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.

Huajing

0
6 to 16 Weeks

February 2027

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

AUD 0.1356

Multiples of: 5

FMY4AT148

ROHM Semiconductor Bipolar Transistors - BJT NPNPNP 50V 150MA
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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

0
6 to 16 Weeks

February 2027

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

AUD 0.1356

Multiples of: 3000

BD436 TO-126C 85-375

TO-126C 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.

Changjing Electronics Technology

0
6 to 16 Weeks

February 2027

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

AUD 0.1356

Multiples of: 5

2SC3647G-R-AB3-R

SOT-89 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.

Unisonic

0
6 to 16 Weeks

February 2027

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

AUD 0.1358

Multiples of: 5

STPSA42

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

0
6 to 16 Weeks

February 2027