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STMicroelectronics STPS1045B-TR — Discrete Semiconductors

STPS1045B-TR Schottky Diode, 45V 10A DPAK

MPNSTPS1045B-TR
Active

STMicroelectronics STPS1045B-TR, Schottky Diode, 45 V reverse, 10 A average, 630 mV forward drop at 10 A, Fast Recovery ≤ 500 ns, DPAK surface-mount, 175°C max junction.

$0.7300Ref. price · indicative, final on quote
STMicroelectronics STPS1045B-TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STPS1045B-TR specifications
ParameterValue
Diode typeSchottky
MountingSurface Mount
Voltage - DC reverse (Vr)45 V
Voltage - forward (Vf) (Max) @ if630 mV @ 10 A
Current - reverse leakage @ vr100 µA @ 45 V
Current - average rectified10A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-252-3, DPak (2 Leads + Tab), SC-63

Product details

What this Schottky diode brings to the board

The STMicroelectronics STPS1045B-TR is a 45 V, 10 A Schottky rectifier in a DPAK surface-mount package.

The 45 V reverse voltage (Vr) is the maximum DC blocking voltage the diode can withstand.

10 A average current — sizing the load budget

The 10 A average rectified current (Io) is the continuous DC load the diode can handle with proper heatsinking.

630 mV forward drop at 10 A — the efficiency number

At 10 A forward current the typical forward voltage is 630 mV.

Lifecycle and supply reality

That makes it safe to qualify for a new production BOM. For availability and current pricing, submit an RFQ through the independent distribution channel — we source and quote to order, with confirmed lead time at quote time.

Frequently asked questions

What is the average rectified current rating of STPS1045B-TR?

The average rectified forward current (Io) is 10 A. This is the continuous DC current the diode can conduct with adequate thermal management.

What package does STPS1045B-TR use?

It comes in a DPAK (TO-252-3) surface-mount package, also known as SC-63. It has two leads plus a tab that serves as the cathode connection and primary thermal path.