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STMicroelectronics STPS10L45CG-TR — Discrete Semiconductors

STPS10L45CG-TR Schottky Diode, 45 V, 5 A per Diode, D2PAK

MPNSTPS10L45CG-TR
Obsolete

STMicroelectronics STPS10L45CG-TR, Schottky Diode, 1 Pair Common Cathode, 45 V Reverse Voltage, 5 A Average Rectified Current per Diode, 530 mV Forward Voltage at 5 A, Surface Mount D2PAK, Tape & Reel.

STMicroelectronics STPS10L45CG-TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS10L45CG-TR specifications
ParameterValue
Diode typeSchottky
MountingSurface Mount
Voltage - DC reverse (Vr)45 V
Voltage - forward (Vf) (Max) @ if530 mV @ 5 A
Current - reverse leakage @ vr150 µA @ 45 V
Current - average rectified (Io) (per diode)5A
Operating temperature - junction150°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Diode configuration1 Pair Common Cathode

Product details

Schottky pair for OR-ing and output rectification

The 530 mV forward voltage at 5 A per diode keeps conduction losses manageable in a 5 A output leg. The D2PAK surface-mount package handles the thermal load through the exposed tab, which is the cathode common node. Typical applications include switch-mode power supply secondary-side rectification, freewheeling diodes in motor drives, and OR-ing diodes in redundant power architectures.

ST lists the STPS10L45CG-TR as obsolete. For existing designs that need this exact footprint and rating, the independent channel is the only supply route. The forward voltage and reverse leakage at 45 V (150 µA maximum) are the key parametric targets for a replacement.

What the 530 mV forward voltage means for your thermal budget

At 5 A per diode, 530 mV forward drop produces about 2.65 W of conduction loss per diode. In a common-cathode pair carrying 5 A total, the loss splits across the two junctions. If the board runs hot or airflow is limited, a lower-Vf Schottky in a larger package may be needed.

Frequently asked questions

Is STPS10L45CG-TR obsolete?

Yes, ST lists the STPS10L45CG-TR as obsolete. No official replacement order code has been published. For a new design, qualify an active Schottky with similar 45 V / 5 A ratings in D2PAK.

What is the difference between STPS10L45CG and STPS10L45CT?

The STPS10L45CG uses a D2PAK surface-mount package, while the STPS10L45CT uses a TO-220 through-hole package. The electrical ratings — 45 V reverse voltage, 5 A per diode, common-cathode pair — are the same.