Texas Instruments TVS3300 Precision Surge Protection Clamp

Texas Instruments TVS3300 Precision Surge Protection Clamp is a transient voltage suppressor which provides robust protection for electronic circuits exposed to high transient voltage events. Unlike a traditional TVS diode, the TI TVS3300 precision clamp triggers at a lower breakdown voltage and regulates to maintain a flat clamping voltage throughout a transient overvoltage event. The lower clamping voltage combined with a low dynamic resistance enables a unique TVS protection solution to lower the voltage a system is exposed to during a surge event. This reduction can be up to 30% in the unidirectional configuration and up to 20% in the bi-directional configuration compared to traditional TVS diodes. The low clamping voltage and flat clamping performance allow designers to confidently select downstream system components with a higher voltage rating than possible with traditional TVS diodes. This feature helps lower system cost and reduce board area, thus improving overall performance.


  • Protection against 1kV, 42Ω IEC 61000-4-5
  • Surge test for industrial signal lines
  • Max clamping voltage of 40V at 35A of 8/20µs surge current
  • 33V Standoff voltage
  • Tiny 1.1mm2 WCSP and 4mm2 SON footprints
  • Survives over 4,000 repetitive strikes of 30A 8/20µs surge current at 125°C
  • 130pF Low capacitance
  • Robust surge protection
    • 35A IEC61000-4-5 (8/20µs)
    • 4A IEC61643-321 (10/1000µs)
  • Low leakage current
    • 19nA Typical at 27°C
    • 28nA Typical at 85°C
  • Integrated level 4 IEC 61000-4-2 ESD protection


  • Industrial sensors
  • PLC I/O Modules
  • 24V Power lines or digital switching lines
  • 4/20mA Loops
  • Appliances
  • Medical equipment
  • Motor drivers
Application Circuit Diagram - Texas Instruments TVS3300 Precision Surge Protection Clamp
Chart - Texas Instruments TVS3300 Precision Surge Protection Clamp
Published: 2017-08-18 | Updated: 2023-02-06