1500W Bidirectional TVS for 90V Rails
The SMCJ90CE3/TR13 is a bidirectional Zener TVS diode from Microchip Technology, rated for 1500W peak pulse power (10/1000µs waveform) with a 90V reverse standoff voltage. It clamps transients at 160V maximum while conducting 9.4A peak pulse current. The single bidirectional channel means polarity-insensitive placement — useful for AC-coupled or bipolar supply rails where orientation mistakes during assembly cost rework.
Clamp Window and Temperature Range
Breakdown occurs at 100V minimum, giving a 10V margin above the 90V standoff before the device starts conducting leakage current. The 160V clamp ceiling limits the voltage stress on downstream silicon — important for a 100V-rated MOSFET or a 120V-rated controller IC.
Active Lifecycle and Sourcing Reality
No Power Line Protection — Pure Signal Rail Clamp
The datasheet explicitly notes Power Line Protection: No. This device is designed for signal or low-power DC rail transient suppression, not for mains or high-energy AC line clamping. Using it on a 240VAC input without additional series impedance would exceed the 1500W peak pulse rating on the first surge.