AQHV Series - 200W Discrete Unidirectional TVS Diode

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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.

The AQHV series is designed to provide an option for very fast acting, high performance over-voltage protection devices. Ideally suited for power interfaces, passenger charging interfaces, and well as LED lighting modules, and low speed I/Os. It will protect sensitive equipment from damage due to electrostatic discharge (ESD) and other overvoltage transients. The AQHV series can safely absorb repetitive ESD strikes above the maximum level of the IEC 61000-4-2 international standard (Level 4, ±8kV contact discharge) without performance degradation and safely conduct up to 8A (AQHV12) of induced surge current (IEC 61000-4-5 2nd edition, tP=8/20μs) with very low clamping voltages.


  • ESD, IEC 61000-4-2, ±30kV contact, ±30kV air
  • EFT, IEC 61000-4-4, 40A (5/50ns)
  • Lightning, 8A (8/20 as defined in IEC 61000-4-5 2nd edition) for AQHV12
  • Low clamping voltage
  • PPAP capable
  • Low leakage current
  • Small SOD882 packaging helps save board space
  • AEC-Q101 qualified
  • Moisture Sensitivity Level(MSL -1)
  • Halogen free, lead free and RoHS compliant


  • LED Lighting Modules
  • Portable Instrumentation
  • General Purpose I/O
  • RS232 / RS485
  • CAN and LIN Bus
  • Automotive application