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STMicroelectronics STTH1210G — Discrete Semiconductors

STTH1210G Fast Recovery Diode, 1000V 12A, TO-263 (D2PAK)

MPNSTTH1210G
Obsolete

STMicroelectronics STTH1210G, Fast Recovery Diode, 1000 V, 12 A, 90 ns trr, TO-263-3 D2PAK, Surface Mount.

$2.7500Ref. price · indicative, final on quote
STMicroelectronics STTH1210G datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STTH1210G specifications
ParameterValue
MountingSurface Mount
Voltage - DC reverse (Vr)1000 V
Voltage - forward (Vf) (Max) @ if2 V @ 12 A
Current - reverse leakage @ vr10 µA @ 1000 V
Current - average rectified12A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Reverse recovery time90 ns

Product details

90 ns trr at 1000 V — what it buys the PFC stage

The STTH1210G is a 1000 V, 12 A fast recovery rectifier from STMicroelectronics with a 90 ns reverse recovery time. That trr at this voltage class makes it a fit for the boost diode in continuous-conduction-mode PFC stages or as the output rectifier in 1-2 kW offline switchmode supplies where recovery losses and EMI matter.

12 A average, 2 V forward drop — thermal budget check

The maximum forward voltage is 2 V at 12 A, which puts the conduction loss at 24 W at full rated current.

ST lists the STTH1210G as obsolete. No stock-holding claim; sourced per RFQ.

Frequently asked questions

Is STTH1210G obsolete?

Yes, the STTH1210G is listed as obsolete by STMicroelectronics. No official replacement has been designated.

What is the difference between STTH1210G and STTH1210?

The STTH1210G is the surface-mount D2PAK (TO-263) variant; the STTH1210 is the through-hole TO-220AC version. Electrically they share the same 1000 V, 12 A, 90 ns trr ratings. The package difference drives the mounting and thermal management approach.