1.5KE Series Diodes

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The Littelfuse 1.5KE series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The 1500W axial leaded devices are available in both unidirectional and directional versions with reverse stand-off voltages ranging from 5.8V to 495V.


• Halogen-free and RoHS compliant
• Typical maximum temperature coefficient ΔVBR = 0.1% × VBR@25°C
• Glass passivated junction
• 1500W 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 1μA above 13V
• 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
• Consumer electronics
• External power supply
• Switch-Mode power supply
• Automotive electronics: media players, audio/video/data/power docks & inputs