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STMicroelectronics STPS20SM100SFP — Discrete Semiconductors

STPS20SM100SFP Schottky Diode, 100 V 20 A TO-220FPAB

MPNSTPS20SM100SFP
Obsolete

STMicroelectronics STPS20SM100SFP, Schottky Diode, 100 V DC reverse, 20 A average rectified, Fast Recovery ≤500 ns, TO-220-3 Full Pack, Through Hole, TO-220FPAB.

STMicroelectronics STPS20SM100SFP datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS20SM100SFP specifications
ParameterValue
Diode typeSchottky
MountingThrough Hole
Voltage - DC reverse (Vr)100 V
Voltage - forward (Vf) (Max) @ if900 mV @ 20 A
Current - reverse leakage @ vr30 µA @ 100 V
Current - average rectified20A
Operating temperature - junction150°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-220-3 Full Pack

Product details

100 V / 20 A Schottky in a full-pack TO-220

The STPS20SM100SFP is a 100 V, 20 A Schottky rectifier from STMicroelectronics, housed in the TO-220FPAB full-pack package. The full-pack (isolated tab) variant means the metal tab is electrically isolated — no heatsink insulation pad needed, and the tab can be bolted directly to a grounded chassis or shared heatsink without worrying about the 100 V rail. The 20 A average forward current and 900 mV forward drop at 20 A are typical for a 100 V Schottky in this package class. The fast recovery characteristic (≤500 ns above 200 mA) suits it for the output rectification stage of a 100–200 W switch-mode power supply or a DC-DC converter where Schottky's low reverse-recovery charge cuts switching loss.

ST lists the STPS20SM100SFP as obsolete. The STPS20SM100S (same die in a standard TO-220 with non-isolated tab) is a common cross-shop candidate — the electrical specs match, but the package differs: the SFP full-pack is isolated, the S is not. A board designed for the full-pack's isolated tab needs a mechanical review before swapping to the S variant.

Leakage and thermal limits

Reverse leakage is 30 µA at 100 V. Junction temperature limit is 150 °C.

Frequently asked questions

What is the replacement for STPS20SM100SFP?

Designers and buyers need an active substitute when a part is obsolete to avoid redesign or supply gaps.

Is STPS20SM100SFP obsolete?

Confirms the part's lifecycle status, which is critical for long-term product planning.

What are the specifications of STPS20SM100SFP?

Engineers need voltage, current, package, and thermal data to validate if it fits their design.

Where to buy STPS20SM100SFP?

Even obsolete parts may be available from surplus distributors; buyers need sourcing options.

STPS20SM100SFP vs STPS20SM100S?

Common comparison to find a near-equivalent from the same family with different package or specs.

What is the cross reference for STPS20SM100SFP?

Brokers and technicians use cross references to find pin-compatible or functional replacements from other brands.