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STMicroelectronics STPS1045SF — Discrete Semiconductors

STPS1045SF Schottky Diode, 45V 10A TO-277A

MPNSTPS1045SF
Active

STMicroelectronics ECOPACK®2 Schottky diode, STPS1045SF, 45 V reverse, 10 A average rectified, TO-277A (SMPC) surface-mount package.

$0.6600Ref. price · indicative, final on quote
STMicroelectronics STPS1045SF datasheet (PDF)
PackagingTO-277, 3-PowerDFN
SeriesECOPACK®2
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STPS1045SF specifications
ParameterValue
SeriesECOPACK®2
Diode typeSchottky
MountingSurface Mount
Voltage - DC reverse (Vr)45 V
Current - reverse leakage @ vr50 µA @ 45 V
Current - average rectified10A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-277, 3-PowerDFN

Product details

10 A Schottky in a hand-solderable package

The STPS1045SF is a 45 V, 10 A Schottky rectifier in the TO-277A (SMPC) surface-mount package — a footprint that's large enough for manual soldering with a fine-tip iron, yet compact enough for a production pick-and-place line.

Junction temperature and leakage trade-off

The 175°C max junction temperature gives headroom for high-ambient or poorly ventilated enclosures, but the 50 µA reverse leakage at 45 V doubles roughly every 10°C — at 125°C junction, expect leakage to climb into the low milliamps, which matters for standby power budgets. Its fast recovery (under 500 ns) suits it for switching supplies running at 50–200 kHz, where a standard rectifier would ring or overheat.

Active lifecycle and sourcing posture

The part is part of the ECOPACK®2 series, meaning it meets RoHS and halogen-free requirements without a separate exemption letter.

Frequently asked questions

What is the closest functional second-source for STPS1045SF?

The STPS1045BY-TR shares the same 45 V, 10 A Schottky rating and the same TO-277A package — it is a direct pin-compatible alternative from the same STPS1045 base product number.

Can I hand-solder the STPS1045SF?

Yes. The TO-277A (SMPC) package has a large exposed pad and wide leads — manageable with a fine-tip iron and some flux, though a hot-air station makes it easier for the thermal pad.