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STMicroelectronics STTH1003SG-TR — Discrete Semiconductors

STTH1003SG-TR Fast Recovery Diode, 300 V, 10 A, 35 ns trr

MPNSTTH1003SG-TR
Obsolete

STMicroelectronics STTH1003SG-TR, Standard Fast Recovery Diode, 300 V DC Reverse, 10 A Average Rectified, 35 ns Reverse Recovery Time, Surface Mount D2PAK (TO-263AB), Tape & Reel.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STTH1003SG-TR specifications
ParameterValue
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)300 V
Voltage - forward (Vf) (Max) @ if1.3 V @ 10 A
Current - reverse leakage @ vr10 µA @ 300 V
Current - average rectified10A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Reverse recovery time35 ns

Product details

No official successor is listed on the record.

35 ns reverse recovery — the switching-loss anchor

The 35 ns reverse recovery time (trr) places this diode squarely in the fast-recovery class, rated for switching frequencies where a standard 500 ns recovery diode would burn too much power in the reverse-recovery spike. In a 100 kHz PFC boost stage, that 35 ns trr keeps the switching loss low enough to avoid oversized heatsinks.

300 V, 10 A, 1.3 Vf — the operating envelope

Rated 300 V reverse voltage and 10 A average forward current, with a maximum forward voltage of 1.3 V at 10 A. The 10 µA reverse leakage at 300 V is the standby-loss floor; junction temperature is rated to 175 °C max, so the thermal design must keep the die below that ceiling under full load.

D2PAK footprint and rework

The TO-263-3 / D2PAK surface-mount package has a large exposed copper tab on the bottom — the tab is the cathode and the primary thermal path. For rework, the hot-air profile needs to heat the tab through the board-side copper pour; a standard top-side nozzle alone may not wet the solder under the tab.

Frequently asked questions

What is the equivalent or replacement for STTH1003SG-TR?

Because STTH1003SG-TR is obsolete, engineers and buyers need a drop-in alternative to avoid redesign and maintain supply.

Is STTH1003SG-TR still available for purchase?

Sourcing buyers need to know current inventory availability to fill BOM lines or secure end-of-life stock.

Where can I buy STTH1003SG-TR?

Maintenance techs and brokers need to identify distributors stocking this obsolete part for replacement or repair.

What is the datasheet and pinout for STTH1003SG-TR?

Design engineers need complete electrical and mechanical specifications to validate fit into existing circuits.

What is the price of STTH1003SG-TR?

Buyers comparing costs across distributors need current pricing to make procurement decisions.

Can STTH1003SG-TR be used in place of STTH1002SG-TR?

Engineers checking cross-compatibility need to know differences between similar parts in the STTH10 series.