About Circuit Protection

Circuit Protection

Circuit protection is a set of practices and components used to protect an electrical circuit from damage caused by a short circuit, an overload, or excess voltage. This includes a variety of techniques such as the use of fuses, circuit breakers, and surge protectors. Circuit protection can also be used to prevent fires or other dangerous situations by cutting off the power when a fault is detected. Circuit protection can keep equipment safe and increase the life of components and wiring.

Circuit Protection

Circuit Breakers & Accessories

Circuit Protection Kits

ESD Protection Diodes / TVS Diodes

Fuse Holders

Fuses

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

LED Protection Devices

Surge Protective Devices - SPD

Surge Suppressors

Thermistors

Varistors

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

SMF4L5.0A

ESD Protection Diodes / TVS Diodes 400W, 6.7V, Unidirectional, TVS
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.

Taiwan Semiconductor

18561
Ships to you
between Thu. 27 Nov to Mon. 01 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.11

Multiples of: 1

SMAJ5.0CAQ-13-F

9.2V Clamp 43.5A Ipp Tvs Diode Surface Mount SMA
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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

18555
Ships to you
between Thu. 27 Nov to Mon. 01 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.1643

Multiples of: 1

B74121G0200M060

ESD Protection Diodes / TVS Diodes 20VDC 12kV 5.3pF 20nAa.20V
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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.

TDK

18550
Ships to you
between Thu. 27 Nov to Mon. 01 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.042

Multiples of: 1

1.5SMC20A

TVS Diodes - Transient Voltage Suppressors 20V 1500W UniDir
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.

Bourns

18545
Ships to you
between Thu. 27 Nov to Mon. 01 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.2846

Multiples of: 1

BK1/S506-2-R

2 A 250 V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm
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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.

Eaton

18541
Ships to you
between Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 0.85

Multiples of: 1000

SMBJ6.5CA

11.2V 7.22V 6.5V Bi-Directional SMB(DO-214AA) TVS 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.

SUNMATE

18540
Ships to you
between Fri. 05 Dec to Wed. 10 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.043

Multiples of: 10

WE05DF-BH

DFN1006-2L TVS 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.

Wayon

18527
Ships to you
between Fri. 05 Dec to Wed. 10 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.0169

Multiples of: 50

4T2A250V

Ceramic Tube Fuse 2A Plugin,4x11mm Fuses 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.

Xucheng

18520
Ships to you
between Fri. 05 Dec to Wed. 10 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.0706

Multiples of: 10

BSMD0603-035-6V

PTC Resettable Fuses 0603 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.

BHFUSE

18519
Ships to you
between Fri. 05 Dec to Wed. 10 Dec

December 2025

December 2025
	S	M	T	W	T	F	S
49	30	1	2	3	4	5	6
50	7	8	9	10	11	12	13
51	14	15	16	17	18	19	20
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 0.0517

Multiples of: 10

SMBJ24A

Diode TVS Single Uni-Directional 24V 600W 2-Pin DO-214AA
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.

Taiwan Semiconductor

18453
Ships to you
between Thu. 27 Nov to Mon. 01 Dec

December 2025