SMBJ Series TVS Diodes

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The Littelfuse SMBJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The 600W surface mount devices are available in both unidirectional and directional versions with reverse stand-off voltages ranging from 5V to 440V.


• Halogen-Free and RoHS complaint
• For surface mounted applications to optimize board space
• Low profile package
• Built-in strain relief
• Typical maximum temperature coefficient ΔVBR = 0.1% x VBR@25°C x ΔT
• Glass passivated chip junction
• 600W peak pulse power capability at 10×1000μs waveform, repetition rate (duty cycles):0.01%
• Fast response time: typically less than 1.0ps from 0V to VBR min
• Excellent clamping capability
• Low incremental surge resistance
• Typical IR less than 1µA above 12V
• High Temperature soldering guaranteed: 260°C/40 seconds at terminals
• Plastic package has underwriters laboratory flammability 94V-O


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