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STMicroelectronics STPS2045CH — Discrete Semiconductors

STPS2045CH Schottky Diode, 45V 10A Common Cathode, Obsolete

MPNSTPS2045CH
Obsolete

STMicroelectronics STPS2045CH Schottky rectifier, 1 pair common cathode, 45 V DC reverse voltage, 10 A average per diode, 840 mV forward drop at 20 A, Fast Recovery =< 500 ns, TO-251-3 IPAK through-hole package.

$1.9100Ref. price · indicative, final on quote
STMicroelectronics STPS2045CH datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS2045CH specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)45 V
Voltage - forward (Vf) (Max) @ if840 mV @ 20 A
Current - reverse leakage @ vr100 µA @ 45 V
Current - average rectified (Io) (per diode)10A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-251-3 Short Leads, IPak, TO-251AA
Diode configuration1 Pair Common Cathode

Product details

Dual Schottky rectifier for OR-ing and output rectification

The forward drop is specified at 840 mV maximum at 20 A total, and the device is classified as Fast Recovery (≤ 500 ns, > 200 mA Io). Packaged in a through-hole TO-251-3 IPAK (TO-251AA), it is intended for low-voltage, high-current applications such as switch-mode power supply output rectification, freewheeling diodes, and OR-ing diodes in redundant power systems.

Ratings and design margin

The 10 A per-diode average rating is specified without a heatsink condition — the IPAK tab carries the heat, so a PCB copper area or clip-on heatsink is assumed for continuous operation near the limit. Reverse leakage is 100 µA at 45 V, typical for a Schottky of this voltage class; it rises with junction temperature, so a hot environment increases the quiescent loss in OR-ing applications.

Frequently asked questions

What is the replacement for STPS2045CH?

No official replacement order code is recorded for the STPS2045CH in the available lifecycle data. Buyers needing a functional equivalent should review ST's current Schottky rectifier portfolio in the TO-251 IPAK package with a 45 V / 10 A rating, or contact us with their specific requirements for an alternate recommendation.