SZ1.5SMC36AT3G - SZ1.5SMCxxA Series

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The SMC series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SMC series is supplied in Littelfuse's exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.


  • Working Peak Reverse Voltage Range - 5.8 to 77.8 V
  • Standard Zener Breakdown Voltage Range - 6.8 to 62 V
  • Peak Power - 1500 Watts @ 1 ms
  • ESD Rating of Class 3 (>16 KV) per Human Body Model
  • Maximum Clamp Voltage @ Peak Pulse Current
  • Low Leakage < 5 µA Above 10 V
  • UL 497B for Isolated Loop Circuit Protection
  • Maximum Temperature Coefficient Specified
  • Response Time is Typically < 1 ns
  • CASE: Void-free, transfer-molded, thermosetting plastic
  • FINISH: All external surfaces are corrosion resistant and leads are readily solderable
  • LEADS: Modified L-Bend providing more contact area to bond pads
  • POLARITY: Cathode indicated by molded polarity notch
  • Pb-Free Packages are Available
  • AEC-Q101 Qualified and PPAP Capable
  • SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements

Littelfuse_UL_QVGQ2_E128662icon UR_QVGQ2_E128662

SZ1.5SMC36AT3G ECAD Models

pdf icon Uninterruptable Power Supply (UPS) & Energy Storage System (ESS) Spotlight

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pdf icon Automotive Electronics Applications Guide

This guide provides a summary of key circuit protection consideration factors, descriptions of the technologies Littelfuse offers, and product selection tables. It is designed to help you quickly find a protection solution appropriate to your application.

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
SZ1.5SMC36AT3G 1500 Watt SMC Transient Voltage Suppressor 36 V Unidir RoHS No 10/10/2017 PbFree No 10/10/2017 Yes
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