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STMicroelectronics STPS1645D — Discrete Semiconductors

STPS1645D Schottky Diode, 16 A, 45 V, TO-220AC

MPNSTPS1645D
Obsolete

STMicroelectronics STPS1645D, Schottky rectifier, 45 V reverse voltage, 16 A average rectified current, 570 mV forward voltage at 16 A, Fast Recovery =< 500ns, > 200mA (Io), Through Hole TO-220-2 (TO-220AC), 175°C max junction temperature.

$0.9100Ref. price · indicative, final on quote
STMicroelectronics STPS1645D datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS1645D specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)45 V
Voltage - forward (Vf) (Max) @ if570 mV @ 16 A
Current - reverse leakage @ vr200 µA @ 45 V
Current - average rectified16A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-220-2

Product details

16 A Schottky in a TO-220AC — what the ratings tell you

The STPS1645D is a 45 V, 16 A Schottky rectifier from STMicroelectronics in a through-hole TO-220AC package. Its forward voltage is specified at 570 mV at the full 16 A load — that's the number to use when estimating conduction loss in a high-current OR-ing or output rectifier stage.

STMicroelectronics lists the STPS1645D as obsolete.

Fast recovery spec — what it means

The listing notes Fast Recovery =< 500 ns, > 200 mA (Io). It is not intended for high-frequency SMPS applications where a 50 ns or faster recovery is needed.

Frequently asked questions

Can I use STPS1645D in a 12V circuit?

Yes. With a 45 V reverse voltage rating, the STPS1645D has ample margin for 12 V rails, including automotive 12 V systems that see load-dump transients. The 16 A average current covers most high-current OR-ing, battery isolation, and output rectifier stages in that voltage class.

What is the STPS1645D cross reference?

For a pin-compatible replacement in a new design, evaluate active 45 V, 16 A Schottky rectifiers in TO-220AC from ST or other manufacturers — verify the forward voltage and thermal performance against your load profile.