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

BZW04-5V8

Diode: transil; 400W; 6.8V; unidirectional; ±5%; DO15
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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

11252
Ships to you
between Thu. 27 Nov to Wed. 03 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 0.1889

Multiples of: 5

SMF4L15CA

ESD Suppressors TVS Diodes TVS SMF4L 15V BI
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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

11250
Ships to you
between Wed. 03 Dec to Fri. 05 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 0.1589

Multiples of: 1

SMAJ100A-Q

ESD Suppressors TVS Diodes TVS 400W UNI
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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

11250
Ships to you
between Wed. 03 Dec to Fri. 05 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 0.1865

Multiples of: 1

NTCS0805E3502JLT

NTC (Negative Temperature Coefficient) Thermistors 5Kohms 5% 3480K 1%
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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

11248
Ships to you
between Wed. 03 Dec to Fri. 05 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 0.2885

Multiples of: 1

SMCJ110CA-Q

ESD Suppressors / TVS Diodes TVS 1.5KW BI
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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

11245
Ships to you
between Wed. 03 Dec to Fri. 05 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 0.6114

Multiples of: 1

SMAJ5.0CAX

SMA Electrostatic and Surge Protection (TVS/ESD) 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.

Shenzhen JingYang

11240
Ships to you
between Thu. 11 Dec to Tue. 16 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 0.0409

Multiples of: 10

SMBJ43CA

TVS SMB(DO-214AA) 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.

FTR

11238
Ships to you
between Thu. 11 Dec to Tue. 16 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 0.0415

Multiples of: 10

SMD1206P025TF

PTC Resettable Fuses 1206 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.

Ruilongyuan

11238
Ships to you
between Thu. 11 Dec to Tue. 16 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 0.0658

Multiples of: 10

MF-PSHT035KX-2

Resettable Fuses - PPTC 16V .35A-HD 40A MAX
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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

11233
Ships to you
between Wed. 03 Dec to Fri. 05 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 0.351

Multiples of: 1

SMAJ26A

9.5A 400W 42.1V 28.9V 26V SMA(DO-214AC) Electrostatic and Surge Protection (TVS/ESD) 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.

Youtai

11232
Ships to you
between Thu. 11 Dec to Tue. 16 Dec

December 2025