SP3145-01WTG - SP3145 Series

Series: SP3145 Questions? Contact Littelfuse Support
Roll Over to Zoom

The SP3145 represents an industry first: unidirectional ESD protection in a 01005 type package. Unidirectional protection should be favored over bi directional performance, particularly on logic and data lines, which typically do not transit zero volts during standard operation. Fast-acting, semiconductor based technology can withstand multiple ESD events, without wear-out or degradation. Low nominal capacitance makes this product meaningful for interfaces running at high data rates, approaching 5 GHz clock speeds.


  • Industry-first unidirectional protection, critical for data line protection, and any interface which does not transit zero volts
  • ESD, IEC 61000-4-2, ±20kV contact, ±25kV air
  • EFT, IEC 61000-4-4, 40A (5/50ns)
  • Lightning, IEC 61000-4-5,2nd edition, 1A (tp=8/20μs)
  • Low capacitance of 0.35pF (@ VR=0V)
  • Low leakage current of 20nA (max) at 2.8V
  • Industry’s smallest single channel form factor, nominally 01005
  • Halogen free, Lead free and RoHS compliant


  • Mobile Phones
  •  Smart Phones
  • Camcorders
  • Portable Medical
  • Digital Cameras
  • Wearable Technology
  • Portable Navigation Devices
  • Tablets
  • Point of Sale Terminals

pdf icon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

pdf icon ESD System Level Guide

Designers of today’s electronic devices have demanded more functionality with greater flexibility and higher levels of user interaction...

pdf icon Circuit Protection Technology Application Matrix

Littelfuse is the world leader in the design and manufacturing of fuses for the automotive, industrial, handheld, computer and telecom markets...

pdf icon TVS Diode Array (SPA) Catalog

Littelfuse Silicon Protection Array family of TVS Diode Arrays (SPA® Diodes) are designed to protect analog and digital signal lines...