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STMicroelectronics STPS20SM60ST — Discrete Semiconductors

STPS20SM60ST Schottky Diode, 20A 60V, TO-220

MPNSTPS20SM60ST
Obsolete

STMicroelectronics STPS20SM60ST, Schottky rectifier, 20 A average rectified current, 60 V reverse voltage, 630 mV forward drop at 20 A, fast recovery ≤500 ns, TO-220-3 through-hole package.

STMicroelectronics STPS20SM60ST datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS20SM60ST specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)60 V
Voltage - forward (Vf) (Max) @ if630 mV @ 20 A
Current - reverse leakage @ vr85 µA @ 60 V
Current - average rectified20A
Operating temperature - junction150°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-220-3

Product details

The STPS20SM60ST is a 60 V, 20 A Schottky rectifier from STMicroelectronics in a TO-220-3 through-hole package. It is rated for fast recovery (≤500 ns at >200 mA). The 630 mV forward drop at 20 A is the figure to budget for conduction loss.

STMicroelectronics lists the STPS20SM60ST as obsolete.

Junction temperature and thermal limits

The maximum junction temperature is 150°C. That is the absolute ceiling for the silicon; continuous operation near that limit requires careful thermal management — the TO-220's junction-to-case thermal resistance is the number to pull from the datasheet for heatsink sizing. The 85 µA reverse leakage at 60 V is specified at 25°C; leakage roughly doubles for every 10°C rise, so at elevated junction temperatures the standby loss contribution grows.

Frequently asked questions

What is the replacement for STPS20SM60ST?

STMicroelectronics has not published an official successor order code for the STPS20SM60ST. For a form-fit-function replacement, look at the STPS20H100CT (100 V, 20 A, TO-220) or the STPS2045CT (45 V, 20 A, TO-220) — both are active Schottky rectifiers in the same package, but verify the voltage and forward drop trade-offs against your circuit's requirements.