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STMicroelectronics STPS20M80CT — Discrete Semiconductors

STPS20M80CT Schottky Diode, 80V 10A, TO-220-3, Obsolete

MPNSTPS20M80CT
Obsolete

STMicroelectronics STPS20M80CT, Schottky rectifier, 1 Pair Common Cathode, 80 V, 10 A per diode, Fast Recovery ≤500 ns, TO-220-3, Through Hole, Tube.

STMicroelectronics STPS20M80CT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS20M80CT specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)80 V
Voltage - forward (Vf) (Max) @ if740 mV @ 10 A
Current - reverse leakage @ vr30 µA @ 80 V
Current - average rectified (Io) (per diode)10A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-220-3
Diode configuration1 Pair Common Cathode

Product details

The 740 mV forward voltage at 10 A sets the conduction loss — at full load each diode dissipates roughly 7.4 W, so the TO-220's thermal pad and heatsink interface are critical.

Fast-recovery Schottky — what ≤500 ns means

The Fast Recovery spec (≤500 ns at >200 mA) is unusual for a Schottky — most Schottky diodes switch in nanoseconds. This rating suggests the part is optimized for moderate-frequency rectification in continuous-conduction-mode power supplies where reverse-recovery losses matter.

The TO-220-3 through-hole package is a standard power footprint — three leads with a metal tab for heatsink attachment. The common-cathode configuration means the center lead (tab) is the cathode common, simplifying PCB layout for a center-tapped secondary or dual-diode rectifier.

Frequently asked questions

What is the replacement for STPS20M80CT?

Buyers need an active substitute when the original is obsolete to avoid redesign.

Is STPS20M80CT obsolete?

Lifecycle status directly affects purchasing decisions and risk of last-time buy.

Where can I buy STPS20M80CT?

Finding immediate stock or obsolete inventory is critical for maintenance or small production.

What are the specifications of STPS20M80CT?

Design engineers need exact electrical and thermal data to validate fit.

What is the price of STPS20M80CT?

Procurement requires pricing to fill BOM lines and compare with alternatives.

What is the difference between STPS20M80CT and STPS20M80CR?

Slight package variations affect board layout and assembly, so cross-reference clarity is essential.