SZ1SMB12AT3G - SZ1SMB Series

Series: SZ1SMB
Questions? Contact Littelfuse Support
TVS Diode TPSMB Image
Roll Over to Zoom
Disclaimer Notice

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 SZ1SMB series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping and high surge capability, as well as fast response time. The SZ1SMB series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial and consumer applications.

Features & Benefits:

  • Zener Transient Overvoltage Suppressors
  • Working Peak Reverse Voltage Range − 5.0 V to 170 V for uni-directional, and 10 V to 75 V for bi-directional
  • Standard Avalanche Breakdown Voltage Range −6.4 V to 209 V for uni-directional, 11.1 V to 92.07 V for bi-directional
  • Peak Power − 600 W @ 1.0 ms
  • ESD Rating of Class 3 (> 16 kV) per Human Body Model
  • Maximum Clamp Voltage @ Peak Pulse Current
  • Low Leakage < 5.0 μA Above 10 V
  • Intended for UL 497B Type Protection
  • Response Time is Typically < 1.0 ns
  • Pb-free means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/JEDEC J-STD-609A.01)
  • SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable< 1.0 ns

Check Stock Order Samples

Application Spotlight


Property (Mouseover for details) Value
Reverse Standoff Voltage (VR) (Vso) 12
Watts (W) 600
Peak Pulse Current (Ipp) 10x1000 (A) 30.2
Breakdown Voltage (MIN VBR@IT ) (V) 13.3
Breakdown Voltage (VBR@IT) (V) 14.7
Ir @Vso( μA) 5
On-State Current (IT) (mA) 1
Max Clamp Voltage (Vc) (V) 19.9
Partner ECAD Models SZ1SMB12AT3G
Operating Temperature Maximum Celsius 150
Polarity Unipolar
Package DO-214AA

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
SZ1SMB12AT3G Zen TVS 600W 12V UNI DO-214AA TR13 RoHS No 10/29/2017 PbFree No 10/29/2017 CoC_RoHS9_SZ1SMB12AT3G REACH219_Declaration_(Contain)_SZ1SMB12AT3G Yes
10/29/2017		 Contains IPC_SZ1SMBxxAT3G_SZ1SMBxxCAT3G_SZP6SMBxxAT3G_SZP6SMBxxCAT3G
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.