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STMicroelectronics STPS40M100CT — Discrete Semiconductors

STPS40M100CT Schottky Diode

MPNSTPS40M100CT
Active

STMicroelectronics STPS40M100CT, Schottky diode array, 1 Pair Common Cathode, 100 V, 20 A per diode, 780 mV Vf, Fast Recovery ≤ 500ns, TO-220-3, Through Hole, Tube.

$2.2100Ref. price · indicative, final on quote
STMicroelectronics STPS40M100CT datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STPS40M100CT specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)100 V
Voltage - forward (Vf) (Max) @ if780 mV @ 20 A
Current - reverse leakage @ vr70 µA @ 100 V
Current - average rectified (Io) (per diode)20A
Operating temperature - junction150°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySchottky
CaseTO-220-3
Diode configuration1 Pair Common Cathode

Product details

Dual Schottky in a TO-220-3 — what the ratings tell you

The STPS40M100CT is a dual Schottky rectifier from STMicroelectronics, housing two 20 A diodes in a common-cathode configuration inside a single TO-220-3 through-hole package. Each diode is rated for 100 V reverse voltage and delivers a forward voltage drop of 780 mV at the full 20 A forward current. The fast-recovery characteristic — ≤ 500 ns at > 200 mA — means this part is tuned for switching supplies and output rectification where reverse-recovery losses matter, not just conduction drop. The junction temperature maxes at 150 °C, which sets the heatsink requirement for continuous 20 A per leg.

The base product number STPS40 covers a range of voltage and current variants in the same TO-220-3 footprint, so if a future design needs a different Vr or If rating, the pin-compatible sibling is a direct swap without a board spin.

Frequently asked questions

What package does STPS40M100CT come in?

The STPS40M100CT is supplied in a TO-220-3 through-hole package, with the supplier device package designated as TO-220. It ships in Tube format.

Is STPS40M100CT equivalent to MBR20100CT?

Both are 100 V, 20 A per-diode common-cathode Schottky rectifiers in TO-220-3. The MBR20100CT is a close functional peer from another manufacturer. Pinout and footprint are identical, but verify the forward voltage and leakage curves from each datasheet — the STPS40M100CT specifies 780 mV at 20 A, which may differ from the MBR variant's typical Vf at the same current.

What is STPS40M100CT's listed speed?

The part is classified as Fast Recovery with a recovery time ≤ 500 ns at forward current > 200 mA. That is the Schottky's intrinsic switching speed — no stored charge to sweep out, so reverse recovery is dominated by junction capacitance, not minority-carrier lifetime.