VDRS Series

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Vishay BCcomponents

Revision: 18-Oct-2021

1

Document Number: 29081

For technical questions, contact: nlr@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

VDR Metal Oxide Varistors Standard

LINKS TO ADDITIONAL RESOURCES

ORDERING INFORMATION

The varistors are available in a number of packaging

options:

•Bulk

• On tape and reel

• On tape in ammopack (fanfold)

The basic ordering code for each option is given in tables

titled Varistors on Tape on Reel, Varistors on Tape in

Ammopack and Varistors in Bulk. To complete the catalog

number

and

to

determine

the

required

operating

parameters, see Electrical Data and Ordering Information

table.

Note

• Special lead-configuration as inside or outside crimped leads on

request

AGENCY APPROVALS

• cUL certificate

• ULus certificate

• VDE certificate

Note

• Agency approval documents, please see:

www.vishay.com/ppg?29081&documents

FEATURES

•Low

β high purity zinc oxide disc

• Halogen free insulating epoxy coating

• Straight leads and kinked leads

• Straight leads with flange

(VDRS05 and VDRS07 only)

• Certified for operation up to 85 °C according to

UL 1449 edition 4, VDE/IEC 61051-1/2

• Material categorization:

for

definitions

of

compliance

please

see

www.vishay.com/doc?99912

APPLICATION

• Overvoltage and transient voltage protection

DESCRIPTION

The varistors consist of a disc of low-

β ZnO ceramic material

with two solid copper leads (S20 types only) or copper clad

steel wire. The wires have a matte tin plating. They are

coated with UL 94 V-0 approved ocher colored halogen-free

epoxy, which provides electrical, mechanical and climatic

protection.

MOUNTING

The varistors are suitable for hand-mounting (bulk) or

automatic pick and place mounting (tape on reel or fanfold).

The parts can be soldered by hand or wave soldering.

Pin-in-paste reflow soldering is not recommended. Bending

of

the

leads

for

different

angle

placement

is

not

recommended.

Typical soldering

235 °C, duration: 5 s (Pb-bearing)

245 °C, duration: 5 s (lead (Pb)-free)

Resistance to soldering heat

260 °C, duration: 10 s max.

MARKING

The varistors are marked with the following information:

• Maximum continuous RMS voltage

• Series numbers

- 592 for VDRS05

- 593 for VDRS07

- 594 for VDRS10

- 595 for VDRS14

- 596 for VDRS20

• Safety marks on VDRS10-14-20 types

• Manufacturers logo

• Date of manufacture (YYWW)

INFLAMMABILITY

The varistors are passive non-flammable.

The encapsulation is made of flammable resistant epoxy in

accordance with UL 94 V-0.

QUICK REFERENCE DATA

PARAMETER

VALUE

UNIT

Maximum continuous voltage in

operating temperature range:

RMS

14 to 680

V

DC

18 to 895

V

Maximum non-repetitive transient

current INRP (8 x 20 μs)

100 to 6500

A

Maximum energy

(10/1000 μs)

0.5 to 496

J

Detailed specification

Based on

IEC 61051-1

IEC 61051-2

IEC 61051-2-2

Storage temperature

-40 to +125

°C

Operating temperature

-40 to +85

°C

333

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