1500W bidirectional TVS in a through-hole axial package
The 1.5KE36CAHA0G: This is the energy-handling spec that governs whether the part survives a transient without failing short — the 1500W rating means it can absorb a 31 A, 49.9 V clamping event for that pulse duration.
This part carries AEC-Q101 qualification, the automotive-grade stress test for discrete semiconductors. The -55 °C to 175 °C operating junction range covers the full automotive temperature envelope, including cold-crank and under-hood soak-back conditions. No power line protection feature is built in — this is a standalone TVS, not a filtered or EMI-suppression device.
Through-hole package and rework considerations
Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE36CAHA0G is a straightforward hand-solder or wave-solder part. The axial leads are robust enough for point-to-point wiring or PCB mounting with a 1.0 mm diameter hole — no fine-pitch alignment needed. For rework, the through-hole construction is forgiving: the part can be removed with a desoldering iron or hot-air station without lifting pads, and the body is large enough to mark clearly. Pin 1 orientation is not an issue — bidirectional TVS diodes are polarity-insensitive in the circuit.