Automotive-grade 1500 W Zener TVS
The 1.5KE43AHA0G: It clamps transients at 59.3 V maximum and handles 26 A peak pulse current, with a 36.8 V reverse standoff voltage — sized for 24 V or 36 V automotive rails where a load-dump or inductive kick must be shunted without exceeding the downstream IC's abs-max rating.
AEC-Q101 qualification and temperature range
Part of the Automotive series, this diode carries AEC-Q101 qualification — the stress and reliability screening required for under-hood and chassis-mounted electronics.
Package and board integration
Housed in a DO-201AA (DO-27) axial-lead package with a DO-201 supplier device code. The through-hole body suits high-reliability point-to-point wiring or PCB mounting where the lead bend absorbs thermal cycling strain. Supplied in Tape & Box (TB) format for hand-insertion or low-volume automated lines.
Breakdown and clamping performance
Minimum breakdown voltage is 40.9 V, ensuring the diode starts conducting before the protected line reaches 41 V. The maximum clamping voltage of 59.3 V at 26 A peak pulse current gives the designer a hard ceiling — any transient below that energy is clamped without exceeding the TVS's 1500 W rating. No power-line protection feature (the device is intended for signal or low-side supply clamping, not AC mains).