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

PN2222ATA

Bipolar (BJT) Transistor NPN 40 V 1 A 300MHz 625 mW Through Hole TO-92-3
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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

13580
Ships to you
between Tue. 14 Jul to Mon. 20 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0681

Multiples of: 2000

MMBT5551

Transistors (NPN/PNP) SOT-23 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.

LGE

10330
Ships to you
between Tue. 28 Jul to Fri. 31 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0165

Multiples of: 50

BSS138BKS

50V 300mA 1.5@10V,500mA 300mW 1.2V@250mA 2 N-Channel SOT-363 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.

ElecSuper

8579
Ships to you
between Tue. 28 Jul to Fri. 31 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0296

Multiples of: 5

TBC556B

Transistor: PNP; bipolar; 65V; 100mA; 500mW; 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.

CDIL

8186
Ships to you
between Tue. 14 Jul to Mon. 20 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0376

Multiples of: 20

MMBTA44

Transistor: NPN; bipolar; 400V; 300mA; 250mW; 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.

Diotec

8029
Ships to you
between Tue. 14 Jul to Mon. 20 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0522

Multiples of: 1

DTC143ECA

50V 20 100mA 200mW 1 NPN (Pre-Biased) NPN 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.

DOWO

7081
Ships to you
between Tue. 28 Jul to Fri. 31 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0147

Multiples of: 50

NTR5198NLT1G

SOT-23 Pre-ordered 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.

TECH PUBLIC

5150
Ships to you
between Tue. 28 Jul to Fri. 31 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0876

Multiples of: 10

S9014

Transistors (NPN/PNP) NPN 100mA 45V 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

2231
Ships to you
between Tue. 28 Jul to Fri. 31 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.0109

Multiples of: 50

PJQ4453EP-AU_R2_002A1

MOSFETs 40V P-Channel Enhancement Mode 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.

Panjit

27
Ships to you
between Mon. 20 Jul to Wed. 22 Jul

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.5451

Multiples of: 1

DMN2451UFB4Q-7B

MOSFET MOSFET BVDSS: 8V~24V X2-DFN1006-3 T&R 10K
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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.

Diodes Incorporated

0
6 to 16 Weeks