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STMicroelectronics STTH802FP — Discrete Semiconductors

STTH802FP Fast Recovery Diode, 200 V 8 A, 30 ns trr

MPNSTTH802FP
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STMicroelectronics STTH802FP, Fast Recovery Diode, 200 V, 8 A, 30 ns trr, TO-220-2 Full Pack Isolated Tab (TO-220FPAC), Through Hole, Tube.

$1.4900Ref. price · indicative, final on quote
STMicroelectronics STTH802FP datasheet (PDF)
PackagingTO-220-2 Full Pack, Isolated Tab
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH802FP specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if1.05 V @ 8 A
Current - reverse leakage @ vr6 µA @ 200 V
Current - average rectified8A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
CaseTO-220-2 Full Pack, Isolated Tab
Reverse recovery time30 ns

Product details

200 V, 8 A, 30 ns trr — the fast-recovery workhorse for PFC and secondary rectification

The STTH802FP is a 200 V, 8 A fast-recovery diode from STMicroelectronics, built with standard planar technology and specified with a 30 ns reverse recovery time. That trr figure puts it in the fast-recovery class — it switches hard enough for continuous-conduction-mode PFC boost stages and secondary-side rectification in DC bus supplies, without the snap-off behaviour of an ultrafast diode.

Isolated tab — one less part in the kit

The TO-220FPAC (Full Pack, Isolated Tab) package means the metal tab is electrically isolated from the die. No mica washer, no thermal pad, no risk of a short if the heatsink touches a chassis ground. On a field repair where you are swapping a diode on a live PFC board without a full ESD bench, that saves a step and a potential mistake. The junction is rated to 175 °C max, so the thermal margin is generous even in a cramped enclosure with limited airflow. Forward voltage drop is 1.05 V at 8 A — a reasonable 8.4 W conduction loss at full load, which the isolated tab can sink to a heatsink without extra isolation hardware.

Frequently asked questions

Is STTH802FP obsolete or end-of-life?

No. It is a current-production part.

What is the equivalent of STTH802FP?

Within the same STTH8xx family, the STTH803D (300 V, 35 ns trr) and STTH806DTI (600 V, 30 ns trr) are higher-voltage siblings with the same 8 A current rating and TO-220 package. They are not direct drop-in equivalents — the voltage class differs — but they share the same footprint and pinout, so a board designed for the STTH802FP can accept either if the voltage margin allows.

What is STTH802FP's reverse recovery time?

30 ns typical. That is the trr at rated conditions — fast enough for continuous-conduction-mode PFC boost stages and secondary-side rectification in 48–120 V DC bus supplies. The 'Fast Recovery' classification (≤ 500 ns) is a broad bin; the actual 30 ns figure is well inside that window.