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STMicroelectronics STTH2R06UFY — Discrete Semiconductors

STTH2R06UFY Diode 600V 2A Fast Recovery SMBflat, AEC-Q101

MPNSTTH2R06UFY
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STMicroelectronics STTH2R06UFY, Automotive Fast Recovery Diode, 600 V, 2 A, 85 ns trr, AEC-Q101, SMBflat Package, Surface Mount.

$0.6400Ref. price · indicative, final on quote
STMicroelectronics STTH2R06UFY datasheet (PDF)
PackagingDO-221AA, SMB Flat Leads
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH2R06UFY specifications
ParameterValue
MountingSurface Mount
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.9 V @ 2 A
Current - reverse leakage @ vr2 µA @ 600 V
Current - average rectified2A
Operating temperature - junction-40°C ~ 175°C
GradeAutomotive
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR) Cut Tape (CT)
TechnologyStandard
QualificationAEC-Q101
CaseDO-221AA, SMB Flat Leads
Reverse recovery time85 ns

Product details

600 V, 2 A, 85 ns trr — the switching-loss ceiling

The STTH2R06UFY is an automotive-grade fast-recovery epitaxial diode from STMicroelectronics, rated for 600 V reverse voltage and 2 A average forward current. Its 85 ns reverse recovery time (trr) sets the switching-loss floor in hard-switched topologies like PFC boost stages and flyback converters.

AEC-Q101 and 175°C junction — built for under-hood

That 175°C ceiling is the difference between a diode that survives an engine-bay heat soak and one that derates into failure.

SMBflat footprint — check the pad before you place it

The package is SMBflat (DO-221AA), a low-profile surface-mount variant with flat leads. It is smaller than a standard SMB and the lead coplanarity is tighter — verify the solder-paste stencil aperture against the ST application note before the first panel runs.

Frequently asked questions

What is the reverse recovery time of STTH2R06UFY?

The reverse recovery time (trr) is 85 ns, measured under standard test conditions. That figure determines the switching loss in hard-switched automotive converters.