600W bidirectional TVS for 7.5V rail protection
The SMBJ7.5CE3/TR13 is a Zener-type transient voltage suppressor from Microchip Technology, rated for 600W peak pulse power per the 10/1000µs waveform. Its 7.5V reverse standoff voltage means it sits across a 7.5V rail without conducting, then clamps transients at 14.3V maximum while shunting up to 42A. The single bidirectional channel protects against surges of either polarity, which simplifies layout for AC-coupled or bipolar signal lines.
Minimum breakdown voltage is 8.33V, so the part starts conducting above that threshold. The 14.3V clamp sets the maximum voltage the protected circuitry sees during a surge — a 7.5V rail with 10% tolerance (8.25V) stays below breakdown in normal operation, and the clamp holds the transient below most 12V-rated downstream components. The 600W rating at 10/1000µs is the standard TVS power metric; derate for shorter or longer pulses per the datasheet curve.
Active production — sourcing and package details
Power line protection is not supported — this is a signal-rail or low-power rail TVS, not a mains suppressor.