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STMicroelectronics STTH812G-TR — Discrete Semiconductors

STTH812G-TR 1200 V 8 A Fast Recovery Diode, D2PAK

MPNSTTH812G-TR
Active

STMicroelectronics STTH812G-TR, Fast Recovery Diode, 1200 V, 8 A, 100 ns trr, D2PAK (TO-263AB), Surface Mount, Tape & Reel.

$2.1800Ref. price · indicative, final on quote
STMicroelectronics STTH812G-TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH812G-TR specifications
ParameterValue
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)1200 V
Voltage - forward (Vf) (Max) @ if2.2 V @ 8 A
Current - reverse leakage @ vr8 µA @ 1200 V
Current - average rectified8A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Reverse recovery time100 ns

Product details

1200 V fast recovery diode in D2PAK

This part targets high-voltage power conversion — PFC boost stages, flyback snubbers, and output rectification in switch-mode power supplies and inverters operating at moderate switching frequencies.

Recovery speed and switching loss

With a 100 ns reverse recovery time, the STTH812G-TR fits hard-switched topologies where diode reverse recovery contributes to turn-on loss in the main switch. The 1200 V blocking voltage gives headroom for 400 VDC bus rails with derating, common in three-phase industrial PFC and high-voltage DC-DC converters.

The part is RoHS compliant and lead-free per ST's standard finish.

Frequently asked questions

What is the difference between STTH812G-TR and STTH812G?

The STTH812G-TR and STTH812G are the same device — the -TR suffix indicates Tape & Reel packaging, while the base STTH812G typically ships in tube or bulk. Electrical ratings (1200 V, 8 A, 100 ns trr) are identical. For automated pick-and-place, order the -TR variant; for manual assembly or low-volume prototyping, the tube-packaged STTH812G may be more convenient.