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STMicroelectronics STPS1545DY — Discrete Semiconductors

STPS1545DY Schottky Diode, 45V 15A, AEC-Q101, TO-220AC

MPNSTPS1545DY
Obsolete

STMicroelectronics STPS1545DY, Automotive AEC-Q101 Schottky diode, 45 V reverse, 15 A average rectified, 570 mV forward drop at 15 A, TO-220AC through-hole package, -40°C to 175°C junction temperature.

$1.8500Ref. price · indicative, final on quote
STMicroelectronics STPS1545DY datasheet (PDF)
PackagingTO-220-2
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q101
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS1545DY specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)45 V
Voltage - forward (Vf) (Max) @ if570 mV @ 15 A
Current - reverse leakage @ vr200 µA @ 45 V
Current - average rectified15A
Operating temperature - junction-40°C ~ 175°C
GradeAutomotive
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
QualificationAEC-Q101
CaseTO-220-2

Product details

Automotive Schottky — 45 V, 15 A, AEC-Q101

It is rated for a maximum DC reverse voltage of 45 V and an average forward current of 15 A, with a forward voltage drop of 570 mV at the full 15 A rating.

STMicroelectronics lists the STPS1545DY as obsolete.

Parametric profile for the BOM

The 200 µA reverse leakage at 45 V is specified at 25°C; leakage rises with junction temperature, so thermal margin matters in high-temperature automotive environments. The fast recovery characteristic (≤500 ns, >200 mA) is typical for a Schottky and suits switching power supply output rectification and freewheeling diode roles.

Package and qualification

Housed in a TO-220AC through-hole package (TO-220-2), the STPS1545DY is suitable for board-level mounting with a heatsink. The AEC-Q101 qualification confirms it meets automotive stress and reliability requirements, including extended temperature cycling and high-temperature reverse bias testing.

Frequently asked questions

Is STPS1545DY obsolete? What are the replacements?

Yes, the STPS1545DY is listed as obsolete by STMicroelectronics. No official replacement part number has been published. For a form-fit-function substitute, a cross-reference search against the 45 V, 15 A, TO-220AC Schottky diode family is recommended.

Is STPS1545DY AEC-Q101 qualified?

Yes, the STPS1545DY is AEC-Q101 qualified, making it suitable for automotive applications that require the associated stress and reliability testing.

What is STPS1545DY's listed grade and speed?

The STPS1545DY is graded as Automotive (AEC-Q101). Its speed classification is Fast Recovery (≤500 ns, >200 mA), which is typical for a Schottky diode and supports switching applications.