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STMicroelectronics STPS1L20MF — Discrete Semiconductors

STPS1L20MF Schottky Diode, 20 V, 1 A, STmite Flat

MPNSTPS1L20MF
Active

STMicroelectronics STPS1L20MF, Schottky Diode, 20 V DC Reverse, 1 A Average Rectified, 430 mV Forward Voltage at 1 A, Fast Recovery ≤500 ns, Surface Mount DO-222AA, STmite Flat Package.

$0.7100Ref. price · indicative, final on quote
STMicroelectronics STPS1L20MF datasheet (PDF)
PackagingDO-222AA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STPS1L20MF specifications
ParameterValue
Diode typeSchottky
MountingSurface Mount
Voltage - DC reverse (Vr)20 V
Voltage - forward (Vf) (Max) @ if430 mV @ 1 A
Current - reverse leakage @ vr75 µA @ 20 V
Current - average rectified1A
Operating temperature - junction150°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseDO-222AA

Product details

430 mV forward drop at 1 A — the efficiency floor for a 1 A Schottky

The STPS1L20MF is a 20 V, 1 A Schottky rectifier from STMicroelectronics. Its key parametric is a forward voltage of 430 mV at 1 A — this is the conduction-loss floor for a 1 A Schottky, directly relevant for low-voltage rectification where every millivolt of drop eats into the output rail margin.

Listed as Fast Recovery with trr ≤ 500 ns at forward current >200 mA. That speed is adequate for line-frequency rectifiers and low-frequency switching converters (e.g., 50–100 kHz flyback secondaries), but not for MHz-range synchronous rectification where a SiC or GaN diode would be needed. The junction temperature ceiling is 150°C, so the thermal design must keep the junction below that under steady-state load.

STmite Flat — package and footprint reality

Housed in a DO-222AA (STmite Flat) surface-mount package. The package accepts standard reflow profiles; no special moisture sensitivity level is flagged in the listing.

ROHS3 compliant. No last-time-buy or PCN notices are in effect for this order code. For a production BOM, this part presents no supply-chain risk from discontinuation.

Frequently asked questions

What is the junction temperature rating of STPS1L20MF?

The maximum operating junction temperature is 150°C. This is the absolute ceiling — the thermal design should keep the junction below this under continuous 1 A load, accounting for the forward voltage drop and the PCB copper area.

What is the closest pin-compatible alternative to STPS1L20MF?

For a drop-in replacement, compare the DO-222AA footprint and the 20 V, 1 A rating with the forward voltage spec. Any alternative must match the STmite Flat package outline and the cathode tab position.