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

SMAJ8.5CA-Q

ESD Suppressors / TVS Diodes 8.5V 400W 5% BiDirectional
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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.

Bourns

27820
Ships to you
between Tue. 25 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 0.1496

Multiples of: 1

SMF28A-M3-08

ESD Suppressors / TVS Diodes ESD PROTECTION DIODE SMF DO219-M3
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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

27810
Ships to you
between Tue. 25 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 0.1438

Multiples of: 1

V430ZA05P

Varistors 275VAC 11J 710V-CLAMP 400A-PK
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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.

Littelfuse

27793
Ships to you
between Wed. 19 Nov to Tue. 25 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 0.0394

Multiples of: 1

D5V0L4B5TS-7

Diodes Incorporated TVS Diode Arrays 4 CH TVS BI Array 5.0 Volts 84W 6A
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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

27791
Ships to you
between Tue. 25 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 0.2444

Multiples of: 1

VTVS63ASMF-M3-08

TVS Diodes - Transient Voltage Suppressors 400W -/+30kV -/+5% Vf1.8V Uni-dir N-Ch1
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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

27774
Ships to you
between Tue. 25 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 0.1515

Multiples of: 1

B72500D150A60

ESD Suppressors 0603 15Vdc 30A CeraDiode CDS3C15GTA
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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

27744
Ships to you
between Tue. 25 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 0.0681

Multiples of: 1

B59850C0130A070

PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor
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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

27720
Ships to you
between Tue. 25 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 1.1192

Multiples of: 1

SMBJ30CA

SMB(DO-214AA) TVS 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

27706
Ships to you
between Wed. 03 Dec to Mon. 08 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 0.0353

Multiples of: 20

AQ4021-01FTG

ESD Suppressors / TVS Diodes 25A 2.5pF AEC-Q101
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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.

Littelfuse

27693
Ships to you
between Tue. 25 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 0.352

Multiples of: 1

VTVS5V0ASMF-HM3-08

ESD Suppressors / TVS Diodes 400W -/+30kV -/+5% AEC-Q101 Qualified
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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

27526
Ships to you
between Tue. 25 Nov to Thu. 27 Nov

November 2025