Surge protection window for 185V rails
The 1.5KE220CAHA0G: Its 185V reverse standoff voltage means it sits across a nominal 185V DC rail without conducting leakage current under normal operation. When a transient exceeds the 209V minimum breakdown voltage, the device avalanches and clamps the surge to 328V maximum, shunting 4.8A peak pulse current to protect downstream silicon.
Automotive qualification and thermal envelope
AEC-Q101 qualification certifies this part for automotive stress levels — temperature cycling, high-temperature reverse bias, and ESD robustness per the automotive discrete semiconductor standard.
Through-hole axial package for robust mounting
Housed in a DO-201AA axial package with through-hole mounting, the device offers mechanical retention superior to surface-mount alternatives in high-vibration or high-thermal-cycling applications. The DO-201 supplier device package provides a standard lead form factor for hand insertion or wave solder assembly. The bidirectional single-channel configuration eliminates the need for two series diodes in AC-coupled or bipolar transient paths — one device clamps both polarities.