33V Precision Surge Protection Clamp - TVS3300


33V Precision Surge Protection Clamp



The TVS3300 is a transient voltage suppressor which provides robust protection for electronic circuits exposed to high transient voltage events. Unlike a traditional TVS diode, the 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 that can lower the voltage a system is exposed during a surge event by up to 30% in unidirectional configuration and up to 20% in bidirectional configuration when compared to traditional TVS diodes. The low clamping voltage and flat clamping performance allow designers to confidently select downstream system components with maximum voltage rating than is possible with traditional TVS diodes, saving system cost, board area and improving overall performance.

The TVS3300 is a unidirectional precision surge protection clamp with a 33-V working voltage designed specifically to protect systems with mid-voltage rails in industrial, communication, and factory automation applications. The TVS3300 has a fast response time when surge current is applied so there is no overshoot voltage during clamping, making it ideal to replace traditional TVS and zener diodes.

The TVS3300 is available in two small footprint packages which, when used in place of an industry standard SMB package, can reduce footprint by 94% (WCSP package) and 79% (SON package) for space constrained applications. Both package options robustly dissipate the surge power and provide up to 58% lower leakage current compared to traditional TVS diodes in SMA and SMB package, allowing for higher accuracy 4-20-mA current loop


  • Ultra-Low and Flat Clamping Voltage
    • 38 V at 35 A (8/20 µs)
    • RDYN: 40 mΩ
  • Standoff Voltage: 33 V
  • Low Leakage Current
    • 19 nA at 27°C
    • 28 nA at 85°C
  • Peak Pulse Power:
    • 1330 W (8/20 µs)
    • 150 W (10/1000 µs)
  • IEC 61000-4-2 Level 4 ESD Protection
    • ±14-kV Contact Discharge
    • ±11-kV Contact Discharge (SON)
    • ±30-kV Air Gap Discharge
  • IEC 61000-4-4 EFT Protection
    • 80 A (5/50 ns)
  • IEC 61000-4-5 Surge Protection
    • 35 A (8/20 µs)
  • Industrial Temperature Range: –40°C to +125°C
  • Compact Packages
    • 4-pin WCSP Package (1.062 mm × 1.116 mm)
    • 6-pin SON Package (2 mm × 2 mm)

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Parametrics Compare all products in High Performance TVS Diodes

Number of Channels (#)
IO Capacitance (Typ) (pF)
Breakdown Voltage (Min) (V)
IEC 61000-4-2 Contact (+/- kV)
IEC 61000-4-2 Air-Gap (+/- kV)
IO Leakage Current (Max) (nA)
Operating Temperature Range (C)
IEC 61000-4-5 (Surge) (Max) (A)
IEC 61000-4-5 (Surge) (Max) (W)
Dynamic Resistance (Typ) (Ω)
IEC 61000-4-4 EFT (Max) (A)
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