5V rail surge clamp – 600W peak pulse, DO-214AA
It handles 600W peak pulse power per the 10/1000 µs waveform, with a minimum breakdown voltage of 6.4V and a maximum clamping voltage of 9.2V at 65.2A peak pulse current. The DO-214AA SMB package suits standard surface-mount assembly and reflow profiles.
Voltage thresholds and clamping margin
Reverse standoff voltage is 5V (typ), meaning the diode draws negligible leakage below that rail level. Breakdown starts at 6.4V min, and clamping is held to 9.2V max — a 4.2V window from standoff to clamp. For a 5V supply with 10% tolerance (5.5V max), the 6.4V breakdown provides a 0.9V margin before the diode begins conducting, preventing nuisance triggering on normal ripple. The 65.2A peak pulse current rating (10/1000 µs) defines the surge capacity — enough for secondary lightning protection on I/O lines or DC power inputs in industrial controllers.
Lifecycle status is Active per Microchip Technology.
Package and reflow compatibility
DO-214AA (SMB) body, JEDEC standard. The footprint matches common SMB pad layouts. Reflow profile follows standard SnPb or Pb-free solder pastes with a peak temperature of 260°C — no special handling beyond MSL level per the datasheet.