About Varistors

Varistors

A varistor (also known as a voltage-dependent resistor, or VDR) is a resistor whose resistance changes as the voltage across it increases or decreases. Varistors are typically constructed from a ceramic material containing semiconductor materials such as silicon and germanium. They have a relatively large resistance at low voltage levels, but as the voltage increases, their resistance drops significantly, allowing more current to flow through them. This feature makes them useful for absorbing transient voltages, which are sudden increases in the voltage that can occur when a device is powered on or off. Varistors are also commonly used to provide overvoltage protection, where they absorb and dissipate excessive voltages before they reach sensitive electronic components.

Varistors

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty	Product	Voltage Rating DC	Voltage Rating AC	Clamping Voltage	Diameter	Peak Surge Current	Surge Energy Rating	Capacitance	Operating Temperature Range	Termination Style	Packaging	Package / Case	Series	Mounting Style	Varistor Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Qualification

ST4032K431G2

350V 275V 387V~473V 4032 Varistors 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.

SLKORMICRO

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1045

Multiples of: 5

387 V ~ 473 V

VDR-14D511KJ

DIP Varistors 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.

VDR

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1014

Multiples of: 5

510 V

WLR-G10D511KPB8SPCB20-L

Varistors Through Hole 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.

Tyohm

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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32	2	3	4	5	6	7	8

AUD 0.0983

Multiples of: 5

845 V

RM14D471KD1IECW0

Varistors 385V 775V 4.5KA Through Hole,P=7.5mm 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.

Dersonic

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1047

Multiples of: 5

775 V

VDR-10D621KSC

DIP Varistors 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.

VDR

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1047

Multiples of: 5

1.025 kV

620 V

TVR07621KYC3CM

Plugin,P=5mm Varistors 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.

TKS

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1016

Multiples of: 5

14D180K

Varistors 14V 36V 1KA Through Hole 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.

COV

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1048

Multiples of: 5

36 V

NVD05UCD056

Varistors 56Volt 5mm
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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.

KOA Speer

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
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30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1049

Multiples of: 1

Mov

45 V

35 V

123 V

5 mm

125 A

1.3 J

- 40 C to + 125 C

Radial

Reel

Nvd

56 V

- 40 C

+ 85 C

Aec - Q200

14D301K

Varistors 250V 500V 4.5KA Through Hole 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

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.1051

Multiples of: 5

500 V

RL1206A900K

224V 68V 49V 81.6V~102V 1206 Varistors 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

0
6 to 16 Weeks

July 2026