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STMicroelectronics STPS10120CT — Discrete Semiconductors

STPS10120CT Schottky Diode, 120 V, 10 A, TO-220-3

MPNSTPS10120CT
Active

STMicroelectronics STPS10120CT Schottky rectifier, dual common-cathode, 120 V Vr, 10 A total (5 A per diode), 850 mV Vf at 5 A, 175°C Tj max, TO-220-3 through-hole, Tube.

$1.7000Ref. price · indicative, final on quote
STMicroelectronics STPS10120CT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STPS10120CT specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)120 V
Voltage - forward (Vf) (Max) @ if850 mV @ 5 A
Current - reverse leakage @ vr6 µA @ 120 V
Current - average rectified (Io) (per diode)5A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-220-3
Diode configuration1 Pair Common Cathode

Product details

Its forward voltage is 850 mV at 5 A, and reverse leakage is 6 µA at the 120 V rating.

5 A per diode — sizing the load budget

Each diode in the pair handles 5 A continuous (average rectified), so the total package can carry 10 A in a common-cathode configuration. This rating is per diode, not per package — a designer running 8 A through one side and 2 A through the other stays within the per-diode limit. The 850 mV forward drop at full current drives about 4.25 W of conduction loss per diode at 5 A, so the TO-220 tab needs a heatsink for continuous operation above a few amps.

STMicroelectronics lists the STPS10120CT as Active.

Frequently asked questions

What is the maximum current rating per diode for STPS10120CT?

Each diode in the common-cathode pair is rated for 5 A average rectified current. The total package current rating is 10 A.