20KPA Series TVS Diodes

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The Littelfuse 20KPA series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The 20,000W axial leaded devices are available in both unidirectional and directional versions with reverse stand-off voltages ranging from 20V to 300V.


• Halogen-free and RoHS compliant
• Typical maximum temperature coefficient ΔVBR = 0.1% × VBR@25°C
• Glass passivated chip junction in P600 package
• 20000W peak pulse capability at 10×1000μs waveform, repetition rate (duty cycles):0.01%
• Fast response time: typically less than 1.0ps from 0 Volts to VBR min.
• Excellent clamping capability
• Low incremental surge resistance
• Typical IR less than 2μA above 49V
• High temperature soldering guaranteed: 265°C./10 seconds/ 0.375”,(9.5mm) lead length, 51bs., (2.3kg) tension
• Plastic package has underwriters laboratory flammability classification 94V-O
• Matte tin lead–free plated


  • I/O Interfaces
  • External power supply
  • UPS
  • Switch-Mode power supply
  • Automotive Electronics: media players, audio/video/data/power docks & inputs