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STMicroelectronics STTH806DIRG — Discrete Semiconductors

STTH806DIRG Diode 600V 8A Fast Recovery TO-220AC Ins

MPNSTTH806DIRG
Active

STMicroelectronics STTH806DIRG, Fast Recovery Diode, 600 V, 8 A, 55 ns trr, TO-220AC Insulated, Through Hole, Tube.

$2.8200Ref. price · indicative, final on quote
STMicroelectronics STTH806DIRG datasheet (PDF)
PackagingTO-220-2 Insulated, TO-220AC
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH806DIRG specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.85 V @ 8 A
Current - reverse leakage @ vr8 µA @ 600 V
Current - average rectified8A
Operating temperature - junction175°C (Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
CaseTO-220-2 Insulated, TO-220AC
Reverse recovery time55 ns

Product details

55 ns reverse recovery — what it buys the switching supply

Its 55 ns reverse recovery time (trr) keeps switching losses low at frequencies up to 100 kHz, which directly shrinks the heatsink needed compared to a standard recovery diode at the same current.

Insulated tab — one less assembly step

The TO-220AC insulated package (TO-220-2 Insulated) has a fully isolated tab — no mica washer or bushing required when bolting to a grounded heatsink. The junction is rated to 175°C maximum, and the 1.85 V forward drop at 8 A means the part dissipates about 15 W at full rated current, so a heatsink is mandatory for continuous operation. Reverse leakage at 600 V is 8 µA, negligible in the thermal budget.

ST lists the STTH806DIRG as Active product status and ROHS3 compliant.

Frequently asked questions

What is the reverse recovery time of STTH806DIRG?

The reverse recovery time (trr) is 55 ns, measured under standard test conditions. This is the key switching-speed spec for a fast-recovery diode — it determines how quickly the diode blocks reverse voltage after forward conduction.

Is STTH806DIRG RoHS compliant?

Yes, the STTH806DIRG is ROHS3 compliant, covering all six original RoHS substances plus the four phthalates (DEHP, BBP, DBP, DIBP). No RoHS exemption paperwork is needed for EU-market products using this part.