AWSS5H100: 5 A, 100 V Schottky for Automotive Lighting Modules

AWSS5H100 appears in the Good-Ark new-release table as a 5 A, 100 V Schottky rectifier in eSGC (TO-277). The selection question is whether the higher reverse-voltage class is needed while the current requirement remains in the 5 A class. Increasing the voltage label alone does not settle the choice.

Last updated: October 16, 2026

Establish why the 100 V class is being considered

Write down the reverse-voltage requirement before comparing parts. Distinguish a sustained voltage, a repetitive switching peak and a fault transient. Their durations and current paths matter; a single maximum reading without the circuit context can hide the real stress.

A 100 V rectifier label does not specify the clamping voltage of an upstream TVS, and it does not authorize avalanche operation. Establish the protected voltage at this diode and use explicit applicable limits. Do not infer reverse-energy capability from the part name.

Keep the current comparison in the 5 A class

AWSS5H60 is the same current-class entry in the published family table. Moving to AWSS5H100 raises the reverse-voltage label, but the table does not establish the forward-drop or leakage difference at the intended operating point. Obtain both curves rather than assigning an assumed efficiency penalty or benefit.

If the circuit also needs a different current capability, that is a second comparison. AWSS10H100 changes the current class as well; the loss, thermal and surge assessment must follow the new exact device instead of being carried over automatically.

Review the interaction with the protection network

Trace the surge current return, series impedance and any clamp located before the rectifier. Check whether the diode sees the source transient, a clamped waveform, or an inductive overshoot created locally. Document those conditions alongside the chosen reverse-voltage margin.

For continuous conduction, estimate forward loss using data at the relevant temperature. Treat reverse leakage during blocking intervals separately. The AWSS family guide provides the common comparison; this page focuses on the reason for moving from the 60 V to the 100 V class.

Obtain the exact model documents

Use the AWSS5H100 product page to locate the manufacturer entry. Obtain the current datasheet revision and resolve any missing operating, thermal, surge or qualification limit before approving the part.