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

LST6905VL2NT1

VARISTOR SPD 690V 50KA SURGE
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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.

Littelfuse

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 35.6538

Multiples of: 720

Tray

Lst

B72241L151K100V57

Varistors LS41K150QP 150volts 50KA Formed Leads
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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.

TDK

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 35.8769

Multiples of: 50

Mov

200 V

150 V

395 V

40 mm

50 kA

360 J

4800 pF

- 40 C to + 85 C

Solder Terminal

Tray

- 40 C

+ 105 C

VZ53D511K

Var MOV 320VAC/420VDC 70000A 561V Straight Strap Terminal Bulk
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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.

World Products

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.036

Multiples of: 1

ERZC40CK821W

Varistors ERZC TYPE CK UL CSA RECOGNZD DSK ZNR TAB Max. Allow. =AC510Vrms, Peak Current 30kA
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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.

Panasonic

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.1331

Multiples of: 1

B72240B750K1

Varistors 75VAC 10% 40mm High E
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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.

TDK

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.2308

Multiples of: 1

MOV

100 VDC

75 VAC

220 V

40 mm

25 kA

190J

0.011 uF

Screw

Bulk

HighE

Chassis Mount

120 V

- 40 C

+ 105 C

B72232B0151K001

VARISTOR, METAL OXIDE, 395V, BLOCK
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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.

TDK

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.3227

Multiples of: 1

LST2757VL2NT1

VARISTOR SPD 275V 75KA SURGE
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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.

Littelfuse

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.675

Multiples of: 1

MOV

350 VDC

275 VAC

900 V

75 kA

Radial

Tray

LST

PCB

- 40 C

+ 85 C

ERZ-C32EK511Y

Varistors 510V 25KA 60x55x14mm
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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.

Panasonic

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 38.6414

Multiples of: 1

MOV

415 VDC

291 VAC

845 V

25 kA

405 J

2400 pF

Screw

Bulk

ZNR

Chassis Mount

510 V

- 40 C

+ 85 C

ERZ-C32EK821Y

Varistors 820V 25KA 60x55x14mm
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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.

Panasonic

0
6 to 16 Weeks

October 2026

October 2026
	S	M	T	W	T	F	S
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10
42	11	12	13	14	15	16	17
43	18	19	20	21	22	23	24
44	25	26	27	28	29	30	31
45	1	2	3	4	5	6	7

AUD 36.74

Multiples of: 1

MOV

670 VDC

463 VAC

1.355 kV

25 kA

545 J

1800 pF

Screw

Bulk

ZNR

Chassis Mount

820 V

- 40 C

+ 85 C

Z25M441S

Varistors 440V 10000A mm
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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.

Semitec

0
6 to 16 Weeks

October 2026