Obsolete — sourcing path for the STPS2H100RL
100 V, 2 A Schottky — what the ratings mean
This is a Schottky rectifier rated for 100 V DC reverse voltage and 2 A average rectified current. The forward voltage is 860 mV at the full 2 A load — a typical Schottky drop that keeps conduction losses manageable in a low-voltage rail. The junction temperature rating of 175°C maximum gives thermal headroom for designs that run hot, such as in cramped power supplies or industrial enclosures. The reverse leakage is 1 µA at 100 V — low enough that it won't load down a high-impedance node in standby or OR-ing applications.
Switching speed classification
The part carries a Fast Recovery classification: =< 500 ns recovery time at > 200 mA forward current. While Schottky diodes are inherently majority-carrier devices with negligible stored charge, this speed rating confirms it is characterized for switching applications — not just line-frequency rectification. It fits in a 100 kHz to low-MHz SMPS output stage or as a freewheeling diode in a DC-DC converter.
Through-hole DO-41 package — retrofit and repair fit
The STPS2H100RL comes in a DO-204AL (DO-41) axial-lead through-hole package. This is a legacy footprint that is still common in industrial power supplies, appliance control boards, and automotive aftermarket modules where through-hole assembly is preferred for manual rework or high-vibration environments. The DO-41 body is 2.6 mm diameter with 25.4 mm lead spacing typical — the same footprint as a 1N400x series diode, so it drops into existing PCB layouts without a board spin.