VDRS Series

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Vishay BCcomponents

Revision: 19-Jun-15

1

Document Number: 29081

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

VDR Metal Oxide Varistors Standard

ORDERING INFORMATION

The varistors are available in a number of packaging

options:

•Bulk

• On tape and reel

• On tape in ammopack

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.

FEATURES

•Low

 high purity zinc oxide disc

• Halogen free insulating epoxy coating

• Zinc oxide disc, HF epoxy coated

• Straight leads and kinked leads

• Straight

leads

with

flange

(VDRS05

and

VDRS07 only)

• Certified according to UL 1449 edition 3,

VDE/IEC 61051-1/2 and CSA

• Material categorization: for definitions of compliance

APPLICATION

• Overvoltage and transient voltage protection

DESCRIPTION

The varistors consist of a disc of low-

 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 a layer of ocher colored halogen-free epoxy,

which

provides

electrical,

mechanical

and

climatic

protection. The encapsulation is resistant to all cleaning

solvents in accordance with IEC 60068-2-45.

MOUNTING

The varistors are suitable for processing on automatic

insertion and cutting and bending equipment.

Varistors with flanged leads provide better positioning on

printed-circuit boards (PCB) and more accurate control over

component height. This is important for hand mounting and

automatic insertion techniques; see outlines of flanged

leads drawing.

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 number (592, 593, 594, 595 or 596)

• 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

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