1.5SMB39A - 1.5SMB Series

Series: 1.5SMB
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The 1.5SMB Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. 1.5kW in DO-214AA Package, high current density in small footprint.


  • For surface mounted applications to optimize board space 
  • Low profile package 
  • Typical failure mode is short from over-specified voltage or current 
  • Whisker test is conducted based on JEDEC JESD201A per its table 4a and 4c 
  • ESD protection of data lines in accordance with IEC 61000-4-2, 30kV(Air), 30kV (Contact) 
  • EFT protection of data lines in accordance with IEC 61000-4-4 
  • Built-in strain relief 
  • Glass passivated chip junction 
  • 1500W peak pulse power capability at 10/1000μs waveform, repetition rate (duty cycles):0.01%
  • VBR @ TJ= VBR@25°C x (1+αT x (TJ - 25)) (αT:Temperature Coefficient, typical value is 0.1%) 
  • Excellent clamping capability 
  • Low incremental surge resistance 
  • Meet MSL level 1 per J-STD-020, and high temperature soldering guaranteed: 260C/10sec 
  • Matte tin lead–free Plated 
  • Halogen free and RoHS compliant 
  • Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/ JEDEC J-STD-609A.01)


TVS components are ideal for the protection of I/O Interfaces, VCC bus and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications. 

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
1.5SMB39A TVS 1500W 39V 5%UNI DO-214AA TR13 RoHS RoHS No 04/14/2021 PbFree No 04/14/2021 CoC_RoHS9_1.5SMB39A REACH211_Declaration_(Contain)_1.5SMB39A Yes
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