What the 600W rating means for your protection budget
The SMBJ100AE3/TR13 is a Zener-type TVS diode rated for 600W peak pulse power per the 10/1000µs waveform. That 600W rating sets the energy-handling ceiling for a single transient event — if your circuit sees repetitive surges, derate accordingly. The 100V reverse standoff voltage means this part holds off the DC rail up to 100V without conducting, then clamps at a maximum 162V when the surge hits. The 3.7A peak pulse current is the current the device can sink during that 10/1000µs pulse.
Active production — no last-time-buy risk
Microchip lists the SMBJ100AE3/TR13 as Active. The part ships on Tape & Reel in the SMB package, which is a standard surface-mount footprint for TVS diodes.
Temperature range and board environment
That covers automotive under-hood, outdoor telecom cabinets, and industrial motor drives where the ambient temperature can push past 85°C.