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VDRS20W385ByE Datasheet(PDF) 1 Page - Vishay Siliconix |
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VDRS20W385ByE Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 20 page VDRS Series www.vishay.com Vishay BCcomponents Revision: 19-Jun-15 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 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 please see www.vishay.com/doc?99912 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 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 |
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