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

JFET

MOSFETs

RF Transistors

SiC MOSFETs

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty

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SI7117DN-T1-E3

MOSFET 150V 2.17A 12.5W 1.2ohm @ 10V
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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.

Vishay

78289
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between Thu. 20 Nov to Mon. 24 Nov

November 2025

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AUD 0.8084

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CMLDM7484 TR

MOSFET N AND P CHANNEL MOSFET
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Central Semiconductor

78279
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AUD 0.2789

Multiples of: 3000

BC 847S H6433

Infineon Technologies Bipolar Transistors - BJT AF TRANSISTOR
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Infineon

78249
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AUD 0.1095

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CMPT4401 TR

Transistors Bipolar - BJT NPN GP
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Central Semiconductor

78247
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AUD 0.2442

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BSS138

null 500mA 0.9O@10V null SOT-23 MOSFETs ROHS
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Microdiode Electronics

78191
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53	28	29	30	31	1	2	3
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AUD 0.0129

Multiples of: 30

ZXMS6005DN8Q-13

MOSFET Low Side IntelliFET
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Diodes Incorporated

78083
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47	16	17	18	19	20	21	22
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49	30	1	2	3	4	5	6

AUD 0.901

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PMBT3946YPN,115

NXP Semiconductors Bipolar Transistors - BJT GENERAL PURPOSE TRANSISTOR
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Nexperia

1881
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52	21	22	23	24	25	26	27
53	28	29	30	31	1	2	3
2	4	5	6	7	8	9	10

AUD 0.0763

Multiples of: 10

BCR22PNH6327XTSA1

Infineon Technologies Bipolar Transistors - Pre-Biased AF DIGITAL TRANSISTOR
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Infineon

423
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48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 0.0873

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2N7002,215

MOSFET N-CH TRNCH 60V 300MA
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Nexperia

291
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between Fri. 28 Nov to Wed. 03 Dec

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53	28	29	30	31	1	2	3
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AUD 0.0958

Multiples of: 20

PHPT610030NPKX

NXP Semiconductors Bipolar Transistors - BJT NPNPNP high power double bipolar trans
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Nexperia

0
6 to 16 Weeks