Active AEC-Q101 TVS for 22V automotive rails
The 1.5KE22AHE3_A/C: It clamps transients on a nominal 18.8V reverse standoff rail — typically a 24V automotive bus or a 22V DC supply — with a peak pulse power rating of 1500W (10/1000µs waveform). The single unidirectional channel (20.9V minimum breakdown, 30.6V maximum clamping at 49A peak pulse current) defines the protection window: the rail must stay below 18.8V in normal operation, and the clamping voltage at full surge keeps downstream components within their 30V-class absolute maximum ratings.
What the ratings mean for a BOM decision
This is the minimum requirement for under-hood or cabin electronics that must survive 15+ years of thermal and vibration cycling. Confirm the 10/1000µs pulse waveform matches the intended surge profile before specifying.
Sourcing and compliance posture
The base product number is 1.5KE22, which means the suffix variants (A for 5% tolerance on breakdown, HE3 for AEC-Q101 qualification, _A/C for packaging) are the only distinguishing factors.