Clamping performance and pulse handling
The 1.5KE12CAHB0G: The 1500W peak pulse rating means the diode can absorb a 94A surge (10/1000µs) while clamping the line to 16.7V — well within the absolute maximum rating of downstream 12V-rated ICs and modules. Breakdown occurs at a minimum of 11.4V, ensuring the TVS triggers before the protected circuit's voltage tolerance is exceeded. The single bidirectional channel replaces two unidirectional diodes in series, saving board space and reducing forward voltage drop in the protection path.
Automotive qualification and thermal envelope
The DO-201AA (DO-27) axial-lead package allows through-hole mounting on power entry boards or bus bars, with the large body dissipating heat from repetitive surge events.
Sourcing and lifecycle posture
Supplied in Bulk packaging (loose in a bag or tube, not tape-and-reel), which is the correct ordering code for hand-insertion or low-volume assembly — confirm your pick-and-place setup if you need the tape-and-reel variant.