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STMicroelectronics STTH810GY-TR — Discrete Semiconductors

STTH810GY-TR Fast Recovery Diode, 8A 1000V, 85ns trr, D²PAK

MPNSTTH810GY-TR
Active

STMicroelectronics STTH810GY-TR, Fast Recovery =< 500ns, > 200mA (Io), Standard Diode, 8A, 1000V, 85ns trr, AEC-Q101, D²PAK (TO-263), Surface Mount.

$2.1400Ref. price · indicative, final on quote
STMicroelectronics STTH810GY-TR datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH810GY-TR specifications
ParameterValue
SeriesAutomotive, AEC-Q101
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)1000 V
Voltage - forward (Vf) (Max) @ if2 V @ 8 A
Current - reverse leakage @ vr5 µA @ 1000 V
Current - average rectified8A
Operating temperature - junction-40°C~175°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Reverse recovery time85 ns

Product details

85 ns trr — the switching-speed anchor for a 1 kV, 8 A boost diode

The STTH810GY-TR is a standard fast-recovery epitaxial diode from STMicroelectronics, rated for 8 A average rectified current and 1000 V repetitive reverse voltage. Its 85 ns reverse recovery time (trr) places it in the fast-recovery class for continuous-current-mode (CCM) power factor correction and output rectification stages where the diode's turn-off loss must stay low enough to avoid thermal runaway in the D²PAK package.

AEC-Q101 and 175 °C junction — built for the engine bay and the high-side rail

The base product number STTH810 covers multiple trr and package variants; the GY suffix identifies the D²PAK (TO-263) tape-and-reel version.

Forward drop and leakage — the thermal budget numbers

Reverse leakage is 5 µA at the full 1000 V blocking voltage, a low figure that helps maintain efficiency in light-load or standby conditions.

The STTH810GY-TR is an active, in-production part. No official pin-compatible second source or successor is listed in the component record; for dual-source planning, a parametric search across 1 kV, 8 A fast-recovery diodes in D²PAK from other major manufacturers is the practical route.

Frequently asked questions

What is the reverse recovery time of STTH810GY-TR?

The STTH810GY-TR has a reverse recovery time (trr) of 85 ns. This is the time it takes for the diode to switch from conducting forward current to blocking reverse voltage, and it is the key parameter that determines switching losses in a hard-switched converter like a PFC boost stage.

Is STTH810GY-TR automotive qualified?

Yes, the STTH810GY-TR is AEC-Q101 qualified, which means it has passed the automotive-grade stress tests for reliability in under-hood and high-temperature environments.

What package does the STTH810GY-TR come in?

It is supplied in a D²PAK (TO-263-3) surface-mount package, also referred to as D²Pak with 2 leads plus tab. The tab is the anode connection and the primary thermal path to the PCB.

What is the maximum continuous current for STTH810GY-TR?

The average rectified forward current (Io) is rated at 8 A. This is the DC or average current the diode can conduct continuously, provided the junction temperature stays within the -40 °C to 175 °C range and the PCB copper area is adequate for heat sinking.