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

BCR112

Transistor: NPN; bipolar; BRT; 50V; 100mA; 200mW; SOT23; R1:4.7kO
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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

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 0.0343

Multiples of: 25

KSC2223YMTF

Bipolar (BJT) Transistor NPN 20 V 20 mA 600MHz 150 mW Surface Mount SOT-23-3
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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.

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 0.0343

Multiples of: 3000

BC327-25-BULK

Transistor: PNP; bipolar; 50V; 0.8A; 625mW; TO92
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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.

Semtech

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 0.0343

Multiples of: 10

DTA143EUAFRAT106

Transistors (NPN/PNP) PNP 100mA 50V SOT-323 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.

ROHM

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 0.0343

Multiples of: 10

STPSA92

Trans GP BJT PNP 300V 0.5A 3-Pin TO-92 Bag
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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

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 0.0343

Multiples of: 1

2SA1873

SOT-353 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

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 0.0343

Multiples of: 10

BC856A

Transistor: PNP; bipolar; 65V; 0.1A; 0.25W; SOT23
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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.

Luguang

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 0.0344

Multiples of: 25

BC858B

Transistor: PNP; bipolar; 30V; 0.1A; 0.25W; SOT23
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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.

Luguang

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 0.0344

Multiples of: 25

BC556/116

BC556/116 TAPE AND Reel PNP TO92 65V RADIAL Reel T/HOL
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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.

Central Semiconductor

0
Ships to you
by Thu. 20 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 0.0344

Multiples of: 1

KST5550MTF

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