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STMicroelectronics STPR1020CT — Discrete Semiconductors

STMicroelectronics STPR1020CT Fast Recovery Diode, 200 V

MPNSTPR1020CT
Obsolete

STMicroelectronics STPR1020CT, Fast Recovery Diode, 200 V, 5 A per diode, 30 ns trr, 1 Pair Common Cathode, Through Hole, TO-220-3, Tube.

$1.5400Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STPR1020CT specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if990 mV @ 5 A
Current - reverse leakage @ vr50 µA @ 200 V
Current - average rectified (Io) (per diode)5A
Operating temperature - junction-65°C~150°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-220-3
Diode configuration1 Pair Common Cathode
Reverse recovery time30 ns

Product details

What this dual fast-recovery diode does on the board

Its 30 ns reverse recovery time (trr) makes it suited for high-frequency switching supplies, PFC stages, and output rectification where recovery losses matter. The pair shares a cathode in a single TO-220-3 package, which simplifies layout for center-tapped windings or dual-diode boost converters.

The 30 ns reverse recovery time places this part in the fast-recovery class (≤ 500 ns per the generic classification). In a 100 kHz PFC or flyback converter, that trr keeps the recovery charge low enough to avoid excessive turn-on loss in the MOSFET and reduce ringing on the switch node. The forward drop is 990 mV at 5 A, which is a reasonable conduction loss trade-off for the speed. If your design runs above 200 kHz, you would typically step to an ultrafast or SiC diode; below 50 kHz, a standard recovery part would do.

STMicroelectronics lists the STPR1020CT as Obsolete. A buyer should confirm availability and current pricing at quote time — the spot market is the channel for this one.

Frequently asked questions

Is STPR1020CT obsolete?

Yes, STMicroelectronics lists the STPR1020CT as Obsolete. There is no direct factory replacement announced, so sourcing goes through independent distribution against an RFQ.

What is the reverse recovery time (trr) of STPR1020CT?

The STPR1020CT has a reverse recovery time of 30 ns, which qualifies it as a fast-recovery diode (≤ 500 ns class).

What is the closest pin-compatible alternative to STPR1020CT?

No official cross-reference or second-source alternate is recorded for the STPR1020CT. A buyer evaluating replacements should look for a common-cathode dual diode in TO-220-3 with ≥ 200 V, ≥ 5 A per diode, and trr ≤ 30 ns — the STPR series or equivalent fast-recovery types from other manufacturers would be the starting point, but pinout and thermal pad need board-level verification.