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STMicroelectronics STTH802CT — Discrete Semiconductors

STTH802CT Fast Recovery Diode, 200 V, 4 A, TO-220-3

MPNSTTH802CT
Obsolete

STMicroelectronics STTH802CT, dual common-cathode fast recovery rectifier, 200 V Vr, 4 A per diode, 20 ns trr, TO-220-3 through-hole package, 175°C max junction temperature.

STMicroelectronics STTH802CT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STTH802CT specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if1.1 V @ 4 A
Current - reverse leakage @ vr4 µA @ 200 V
Current - average rectified (Io) (per diode)4A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-220-3
Diode configuration1 Pair Common Cathode
Reverse recovery time20 ns

Product details

The STTH802CT is marked obsolete by STMicroelectronics. Any remaining inventory is limited to existing stock in the distribution channel, and procurement should plan for a last-time-buy or a qualified replacement.

20 ns reverse recovery — the switching parameter that defines the part

The 20 ns trr means the diode turns off quickly, reducing switching losses.

4 A per diode, common-cathode pair — load sharing in a single package

Each diode in the common-cathode pair is rated for 4 A average rectified current. The forward voltage drop is 1.1 V at 4 A.

Package and mounting — TO-220-3 through-hole

The three leads are the two anodes and the common cathode tab. For high-reliability or vibration-prone environments, consider adding a dab of adhesive under the body or a through-hole staking compound.

Frequently asked questions

Is STTH802CT obsolete?

Yes. The STTH802CT is marked obsolete by STMicroelectronics. It is no longer manufactured and is not recommended for new designs.