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

SMF4L36CA

ESD Suppressors TVS Diodes TVS SMF4L 36V BI
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

28161
Ships to you
between Fri. 20 Feb to Tue. 24 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 0.1833

Multiples of: 1

B72205S0200K101

Varistors 20volts 100A
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.

TDK

28149
Ships to you
between Fri. 20 Feb to Tue. 24 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 0.1459

Multiples of: 1

BDFN2C051V40

6.9V 6V 5V DFN-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.

Bourne

28130
Ships to you
between Mon. 02 Mar to Thu. 05 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 0.0364

Multiples of: 20

VC080503A100DP

Varistors 2.3VAC 3.3VDC 0.1J 1400pF 5 V 12V
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.

Kyocera AVX

28130
Ships to you
between Mon. 16 Feb to Fri. 20 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 0.1743

Multiples of: 1000

0251002.MRT1L

Fuses with Leads (Through Hole) 125V 2A
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

28130
Ships to you
between Mon. 16 Feb to Fri. 20 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 0.2892

Multiples of: 1000

JK250-180U

PTC Resettable Fuses Through Hole 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

28121
Ships to you
between Mon. 02 Mar to Thu. 05 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 0.076

Multiples of: 5

SMF40A-M3-08

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

Vishay

28120
Ships to you
between Fri. 20 Feb to Tue. 24 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 0.1818

Multiples of: 1

SMAJ45CA-13-F

ESD Suppressors / TVS Diodes 400W 45V
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.

Diodes Incorporated

28119
Ships to you
between Fri. 20 Feb to Tue. 24 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 0.1067

Multiples of: 1

TT1501SBX

15V UDFN-2L 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.

Shenzhen JingYang

28071
Ships to you
between Mon. 02 Mar to Thu. 05 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 0.0231

Multiples of: 20

VTVS40ASMF-M3-08

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

Vishay

28071
Ships to you
between Fri. 20 Feb to Tue. 24 Feb

February 2026