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

NCP15XW332J03RC

NTC (Negative Temperature Coefficient) Thermistors 3.3K OHM 5%
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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.

Murata

20678
Ships to you
between Tue. 24 Feb to Thu. 26 Feb

February 2026

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

AUD 0.0728

Multiples of: 1

SMAJ40CA

TVS SMA (DO-214AC) 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.

Bourne

20670
Ships to you
between Wed. 04 Mar to Mon. 09 Mar

March 2026

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

AUD 0.0484

Multiples of: 10

SF-0603S400-2

Surface Mount Fuses 4A Slow Blow SinglFuse
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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

20664
Ships to you
between Tue. 24 Feb to Thu. 26 Feb

February 2026

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

AUD 0.371

Multiples of: 1

1.5SMC18CA

TVS Diodes - Transient Voltage Suppressors 18V 1500W BiDir
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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

20631
Ships to you
between Tue. 24 Feb to Thu. 26 Feb

February 2026

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

AUD 0.2972

Multiples of: 1

SMAJ5.0A

TVS SMA 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

20622
Ships to you
between Wed. 04 Mar to Mon. 09 Mar

March 2026

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

AUD 0.0316

Multiples of: 20

SMAJ12CA

ESD Suppressors TVS Diodes SMAJ DO-214AC 12V 19.9V
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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.

Yageo

20583
Ships to you
between Wed. 04 Mar to Mon. 09 Mar

March 2026

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

AUD 0.0494

Multiples of: 10

JK-nSMD010-33

33V 100mA 100A 250mA 1206 Resettable 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.

Jinrui Electronic Materials

20573
Ships to you
between Wed. 04 Mar to Mon. 09 Mar

March 2026

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

AUD 0.0318

Multiples of: 20

GBLC08C

13.4A 148W 18.5V 8.5V 8V SOD-323(SC-90) Electrostatic and Surge Protection (TVS/ESD) 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.

FUXINSEMI

20573
Ships to you
between Wed. 04 Mar to Mon. 09 Mar

March 2026

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

AUD 0.0347

Multiples of: 10

1.5SMC51CA

TVS Diodes - Transient Voltage Suppressors 51V 1500W BiDir
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

20571
Ships to you
between Tue. 24 Feb to Thu. 26 Feb

February 2026

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

AUD 0.4212

Multiples of: 1

01020074Z

Fuse Clip 15 A 250V 1 Circuit Cartridge Through Hole
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.

Littelfuse

19773
Ships to you
between Tue. 24 Feb to Thu. 26 Feb

February 2026