Mlv Design Guide Page 1 Table Of Contents

Surface Mount Multilayer Varistors (MLVs) Design Guide Table of Contents Page Introduction - Common Transient Events 2-3 Sensitivity of the Electronics System 4-5 About the MLV Technology 6 Where Are MLVs Used? 7 Application Examples 9-12 MLV Selection Steps 13-18 Appendix 19-20 Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to changes without notice. Visit littelfuse.com for more information. 2016 Littelfuse, Inc. Littelfuse Multilayer Varistors (MLA, AUML, MHS, MLA AUTO, MLE, and MLN) are used to suppress high transient voltage and protect circuits. Littelfuse, an industry leader in circuit protection, offers a variety of multilayer varistors constructed with high-quality materials. Multilayer Transient Surge Suppressors was specifically designed to suppress the destructive transient voltages. The most common transient condition results from large inductive energy discharges. The MLVs are manufactured from semiconducting ceramics which offer rugged protection and excellent transient energy absorption in a small package. The devices are available in ceramic leadless chip form, eliminating lead inductance and assuring fast speed of response to transient surges. These Suppressors require significantly smaller space and land pads than silicon TVS diodes, offering greater circuit board layout flexibility for the designer. ABOUT THIS GUIDE Choosing the most appropriate suppressor technology requires a balance between equipment protection needs and operating requirements, taking into account the anticipated threat level. In addition to the electrical characteristics of suppression devices, the form factor/package style must also be considered. This guide is designed to summarize some of the comprehensive ESD solutions that Littelfuse offers, and help designers narrow to technologies appropriate to their end application:

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