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

14D820K

Varistors Through Hole RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

14D101K

Varistors 85V 165V 4.5KA Through Hole RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
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AUD 0.0155

Multiples of: 1

165 V

RM20D561KE1IECW0

Varistors 460V 915V 6.5KA Through Hole,P=10mm RoHS
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Dersonic

0
6 to 16 Weeks

October 2026

October 2026
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AUD 0.0155

Multiples of: 1

915 V

560 (504 ~ 616)

B72207S0251K311

Varistors Varistor S07K250GS3
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TDK

0
6 to 16 Weeks

October 2026

October 2026
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45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

Mov

320 VDC

250 VAC

650 V

7 mm

1.2 kA

19 J

120 pF

Radial

Cut Tape

Standardd

390 VDC

- 40 C

+ 105 C

SC0402E100M05

Varistors -5.5V 25V 0402 RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
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45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

25 V

14D102K

Varistors 825V 1650V 4.5KA Through Hole RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
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45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

1650 V

14D391K

Varistors 320V 650V 4.5KA Through Hole RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
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45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

650 V

SC0402E050M09

Varistors -9V 11~17 35V 0402 RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
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44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

35 V

SC0603E010M18

Varistors -18V 110V 0603 RoHS
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SOCAY

0
6 to 16 Weeks

October 2026

October 2026
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40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
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44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 0.0155

Multiples of: 1

110 V

07D820K

Varistors 65V 135V 1.2KA Through Hole RoHS
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SOCAY

0
6 to 16 Weeks

October 2026