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

MMBTA55

SOT-23 Bipolar (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.

Juxing Electronic Technology

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0236

Multiples of: 20

DTC143EE

SOT-523 Digital Transistors 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.

YFW Electronics

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0252

Multiples of: 20

SS8550T

SOT-523 Single Bipolar Transistors 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

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0258

Multiples of: 20

NM2302B

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.

Jingdao

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0268

Multiples of: 20

KRC105S

80 1 NPN (Pre-Biased) SOT-23 Single, Pre-Biased Bipolar Transistors 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.

YFW Electronics

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0268

Multiples of: 20

BSS84

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.

Hottech

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0274

Multiples of: 20

HD2307

30V 2.7A 0.073O@10V,3.5A 1.1W P Channel 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.

High Diode

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0282

Multiples of: 20

MMUN5231DW

SOT-363 Digital Transistors 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

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.0288

Multiples of: 20

2SC4738

50V 700 1 NPN NPN 150mA SOT-523 Single Bipolar Transistors 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

2793
Ships to you
between Wed. 12 Aug to Mon. 17 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 0.029

Multiples of: 20

MMDT3906

SOT-363 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.

TWGMC

2754
Ships to you
between Wed. 12 Aug to Mon. 17 Aug

August 2026