1KSMB39CA - 1KSMB Series

Series: 1KSMB
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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 1KSMB Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.


  • Halogen-Free
  • RoHS compliant
  • For surface mounted applications to optimize board space
  • Low profile package
  • Built-in strain relief
  • Typical maximum temperature coefficient ΔVBR = 0.1% x VBR@25°C x ΔT
  • Glass passivated chip junction
  • 1000W peak pulse power capability at 10×1000μs waveform, repetition rate (duty cycles):0.01%
  • Fast response time: typically less than 1.0ps from 0V to BV min
  • Excellent clamping capability
  • Low incremental surge resistance
  • Typical IR less than 1μA above 12V
  • High Temperature soldering guaranteed: 260°C/40 seconds at terminals
  • Plastic package has Underwriters Laboratory Flammability 94V-O
  • Matte Tin Lead–free Plated
  • Available in breakdown Voltage from 6.8V to 180V specially designed for automotive applications
  • Offers High-Surge rating in compact package: bridges the gap between 600W and 1.5KW 


pdficon Product Selection Guide

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

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

pdficon TVS Diodes 1KSMB Datasheet

The 1KSMB Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

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Littelfuse offers the widest range of TVS Diodes and other circuit protection products. Littelfuse TVS Diodes are ideal for protecting semiconductor components from high-voltage transients...

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
1KSMB39CA TVS Diode 1K SMB Suf MT T&R RoHS No 01/01/2005 PbFree No CoC_RoHS9_1KSMB39CA REACH201_Declaration_with_1KSMB39CA No
Does not Contain IPC_SMBJ5.0A-250A-SMBJ5.0CA-250CA-_P6SMB6.8A-300A-P6SMB6.8CA-300CA-_1KSMB6.8A-180A-1KSMB6.8CA-48CA
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