What this bidirectional TVS diode does for a 20V rail
Its 22.2V minimum breakdown voltage means it starts conducting just above the normal operating voltage, shunting surge current away from sensitive downstream components. With a peak pulse power rating of 600W and a clamping voltage of 35.8V at 16.7A peak pulse current, this part can handle moderate-energy surges typical of industrial or automotive environments. The single bidirectional channel protects both polarities from a single device — useful for AC-coupled or bipolar signal lines.
Temperature range and mounting for harsh environments
Active production — ordering and lifecycle posture
Microchip lists the SMBJ20CE3/TR13 as Active, meaning no end-of-life notice is in effect and production continues.