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STMicroelectronics STTH2L06UFY — Discrete Semiconductors

STTH2L06UFY Automotive Fast Recovery Diode, 600 V, 2 A

MPNSTTH2L06UFY
Active

STMicroelectronics Automotive, AEC-Q101, ECOPACK®2 series Standard Diode, Fast Recovery =< 500ns, > 200mA (Io), 600 V, 2 A, 70 ns trr, DO-221AA SMB Flat Leads, Surface Mount.

$0.7000Ref. price · indicative, final on quote
STMicroelectronics STTH2L06UFY datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH2L06UFY specifications
ParameterValue
SeriesAutomotive, AEC-Q101, ECOPACK®2
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.4 V @ 2 A
Current - reverse leakage @ vr2 µA @ 600 V
Current - average rectified2A
Operating temperature - junction-40°C~175°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseDO-221AA, SMB Flat Leads
Reverse recovery time70 ns

Product details

2 A, 600 V fast-recovery diode for automotive and industrial switching

The STMicroelectronics STTH2L06UFY is an AEC-Q101 qualified fast-recovery standard diode rated for 600 V reverse voltage and 2 A average forward current, with a reverse recovery time of 70 ns. The ECOPACK 2 designation means the part is halogen-free and RoHS compliant per the latest EU directives.

A 70 ns reverse recovery time puts this diode in the fast-recovery class, not the ultrafast (sub-30 ns) tier. That is still fast enough to keep switching losses manageable in a 100–200 kHz PFC or LLC converter, and it gives you a softer snap-off than a 35 ns part — less ringing on the drain node and lower EMI. The 1.4 V forward drop at 2 A is typical for a 600 V planar structure; if your efficiency target demands sub-1.2 V Vf, you would move to a SiC Schottky, but that comes with a different price bracket and layout rules.

AEC-Q101 and 175°C junction — what the automotive grade covers

Reverse leakage is specified at 2 µA at 600 V, which is tight enough to avoid thermal runaway in a high-impedance bus like a 48 V automotive auxiliary rail.

STMicroelectronics lists the STTH2L06UFY as Active. For BOM planning, this is a low-risk line item — no imminent EOL, no forced redesign.

Frequently asked questions

Is STTH2L06UFY automotive qualified?

Yes, the STTH2L06UFY carries AEC-Q101 qualification, so it is released for automotive-grade applications and can be used in production vehicle electronics without additional qualification.

What is the reverse recovery time of STTH2L06UFY?

The reverse recovery time (trr) is 70 ns, placing it in the fast-recovery class suitable for switching frequencies up to about 200 kHz.

Is STTH2L06UFY RoHS compliant?

Yes, the part is designated ECOPACK 2, which means it is halogen-free and RoHS compliant per current EU directives.

Can I replace STTH2L06UFY with STTH2L06?

The STTH2L06 is the non-automotive variant of the same die in a different package (typically SMB). The STTH2L06UFY uses the SMBflat leadless package and is AEC-Q101 qualified. They are not pin-compatible unless the PCB footprint accepts both SMB and SMBflat, and the temperature grade differs. Verify the thermal and package fit before substituting.