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STMicroelectronics STPS16170CT — Discrete Semiconductors

STPS16170CT Schottky Diode, 170 V, 16 A, TO-220-3

MPNSTPS16170CT
Obsolete

STMicroelectronics STPS16170CT, dual common-cathode Schottky rectifier, 170 V reverse voltage, 8 A average per diode, 920 mV forward voltage at 8 A, through-hole TO-220-3 package.

STMicroelectronics STPS16170CT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPS16170CT specifications
ParameterValue
Diode typeSchottky
MountingThrough Hole
Voltage - DC reverse (Vr)170 V
Voltage - forward (Vf) (Max) @ if920 mV @ 8 A
Current - reverse leakage @ vr15 µA @ 170 V
Current - average rectified (Io) (per diode)8A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-220-3
Diode configuration1 Pair Common Cathode

Product details

170 V Schottky pair — application and ratings

The STPS16170CT is a dual common-cathode Schottky rectifier from STMicroelectronics, rated for a maximum reverse voltage of 170 V and an average forward current of 8 A per diode. Schottky construction gives a forward voltage of 920 mV at 8 A per leg, which keeps conduction losses lower than a comparable ultrafast recovery diode at this current density. The reverse leakage at 170 V is 15 µA, a typical figure for a 170 V Schottky — expect leakage to rise with junction temperature, so the thermal design should account for that at elevated loads.

For a pin-compatible replacement, the STPS16140CT (140 V, 16 A, same TO-220-3 common-cathode footprint) is a candidate if the 170 V blocking voltage margin is not required — verify the reverse voltage headroom in your application before substituting.

Maximum junction temperature is 175 °C, which allows operation in high-temperature environments such as power supplies and motor drives, provided the heatsink keeps Tj below that ceiling.

Frequently asked questions

What is the replacement or equivalent for STPS16170CT?

No official successor is listed. The STPS16140CT (140 V, 16 A, same TO-220-3 common-cathode package) is a pin-compatible alternative if the 170 V reverse voltage rating is not required. For applications that need the full 170 V blocking, check the STPS16170CR (D²PAK surface-mount variant) or a higher-voltage Schottky like the STPS20170CT (20 A, 170 V) — both are in the same STPS family.

Can I use STPS16140CT instead of STPS16170CT?

Yes, if the reverse voltage requirement in your circuit is 140 V or less. The STPS16140CT shares the same TO-220-3 common-cathode package and 16 A total current rating. The 170 V version provides 30 V of additional blocking margin — if your design relies on that margin (e.g., for 120 VAC rectification with derating), the 140 V part may not be suitable.