Accession Number : ADA189012

Title :   Metal Oxide Varistor Polarization from an Initial Transient.

Descriptive Note : Final rept. Jul 84-Sep 86,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s) : Hilland, David H

PDF Url : ADA189012

Report Date : Aug 1987

Pagination or Media Count : 30

Abstract : Metal oxide varistors (MOV's) are polarized by the initial transient shunted. This effect is seen in the early part of the current - voltage (I-V) curve as a decrease in clamping voltage and increase in standby current. The magnitude of degradation is a function of the measured polarity relative to the pulse polarity of the initial transient. This report presents alpha and I-V degradation curves for all sizes of MOVs tested. Keywords: Varistor polarization; Transient protection; Circuit protection.

Descriptors :   *METAL OXIDE SEMICONDUCTORS, *POLARIZATION, *VARISTORS, CIRCUITS, CLAMPS, POLARITY, PROTECTION, PULSES, SIZES(DIMENSIONS), TRANSIENTS, VOLTAGE

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE