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STMicroelectronics STPS20M120SR — Discrete Semiconductors

STPS20M120SR Schottky Diode, 20A 120V Fast Recovery TO-262

MPNSTPS20M120SR
Obsolete

STMicroelectronics STPS20M120SR Schottky diode, 20 A average rectified current, 120 V reverse voltage, fast recovery ≤500 ns, TO-262-3 I2PAK through-hole package.

$1.8000Ref. price · indicative, final on quote
STMicroelectronics STPS20M120SR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS20M120SR specifications
ParameterValue
Diode typeSchottky
MountingThrough Hole
Voltage - DC reverse (Vr)120 V
Voltage - forward (Vf) (Max) @ if840 mV @ 20 A
Current - reverse leakage @ vr275 µA @ 120 V
Current - average rectified20A
Operating temperature - junction150°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-262-3 Long Leads, I²Pak, TO-262AA

Product details

The STMicroelectronics STPS20M120SR is a 20 A, 120 V Schottky rectifier diode in a TO-262-3 (I2PAK) through-hole package.

The 20 A average rectified current (Io) sets the continuous load capacity. Forward voltage drop is 840 mV at 20 A, typical for a 120 V Schottky. Reverse leakage at 120 V is 275 µA — acceptable for most designs but worth checking at elevated junction temperature (max 150 °C).

STMicroelectronics lists the STPS20M120SR as obsolete. For new designs, consider a current-production 20 A, 120 V Schottky in TO-262 from ST's portfolio or a second-source equivalent.

Frequently asked questions

What is the replacement for STPS20M120SR?

For a current-production alternative, look for a 20 A, 120 V Schottky in TO-262 from STMicroelectronics or a compatible second-source vendor; confirm pinout and thermal performance before substitution.