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

SMAJ33A

53.3V 53.3V 33V SMA 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.

FTR

13790
Ships to you
between Fri. 06 Mar to Wed. 11 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 0.0328

Multiples of: 10

SMAJ48A

77.4V 53.3V 48V SMA 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.

Jingdao

13787
Ships to you
between Fri. 06 Mar to Wed. 11 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 0.0247

Multiples of: 20

SMAJ64A

DO-214AC(SMA) 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.

Leshan

13786
Ships to you
between Fri. 06 Mar to Wed. 11 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: 5

SMAJ5.0A-E3/5A

TVS Diodes - Transient Voltage Suppressors 400W 5.0V 5% Uni
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

13784
Ships to you
between Thu. 26 Feb to Mon. 02 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 0.1084

Multiples of: 1

AV17K0805121NIR1

Varistors AV AUTO SERIES 17V
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

13776
Ships to you
between Thu. 26 Feb to Mon. 02 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 0.1168

Multiples of: 1

1SMB18AT3G

TVS Diodes - Transient Voltage Suppressors 18V 600W Unidirectional
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.

ON Semiconductor

13771
Ships to you
between Fri. 20 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 0.3052

Multiples of: 1

GSOT24C-HG3-08

Vishay Semiconductors TVS Diode Arrays 24 Volt 300 Watt Common Anode AUTO
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

13285
Ships to you
between Thu. 26 Feb to Mon. 02 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 0.1182

Multiples of: 1

ESDM2032MX4T5G

ESD Suppressors / TVS Diodes 3.3V MID CAP PROTECTION
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.

ON Semiconductor

12804
Ships to you
between Thu. 26 Feb to Mon. 02 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 0.0821

Multiples of: 1

NTCS0805E3103FHT

NTC (Negative Temperature Coefficient) Thermistors NTC 10Kohms 1%
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

11072
Ships to you
between Thu. 26 Feb to Mon. 02 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 0.6107

Multiples of: 1

SZSMF4L13CAT3G

ESD Protection Diodes / TVS Diodes Zen TVS 400W 13V BI SOD-123FL TR13
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

216
Ships to you
between Thu. 26 Feb to Mon. 02 Mar

March 2026