Document Number: 29082 For technical questions, contact: nlr@vishay.com www.vishay.com
Revision: 24-Aug-11 33
VDRH........E/2381 58. .....
Vishay BCcomponents
VDR Metal Oxide Varistors High Surge
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
ORDERING INFORMATION
The varistors are available in a number of packaging options:
Bulk
On tape on 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.
FEATURES
Zinc oxide disc, epoxy coated
Straight or kinked leads
Higher current surge/size ratio capability up to
10 kA for H20 types
Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
Certified according to UL 1449 edition 3,
VDE/IEC 61051-1/2 and CSA
APPLICATION
Overvoltage and transient voltage protection
DESCRIPTION
The varistors consist of a disc of low-ß ceramic material with
two tinned solid copper leads or tinned copper clad steel
wire. They are coated with a layer of ochre colored 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.
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 (582, 583, 584, 585 or 586)
Manufacture logo
Date of manufacture (YYWW)
INFLAMMABILITY
The varistors are non-flammable. The encapsulation is made
of flammable-resistant epoxy lacquer in accordance with
UL 94 V-0.
QUICK REFERENCE DATA
PARAMETER VALUE UNIT
Maximum continuous voltage in
operating temperature range:
RMS 11to680 V
DC 14 to 895 V
Maximum non-repetitive transient
current INRP (8 x 20 µs) 250 to 10 000 A
Detailed specification Based on
IEC 61051-1
IEC 61051-2
IEC 61051-2-2
Storage temperature - 40 to + 150 °C
Operating temperature - 40 to + 125 °C