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STMicroelectronics STTH30ST06WY — Discrete Semiconductors

STTH30ST06WY Automotive Fast Recovery Diode, 600V 30A

MPNSTTH30ST06WY
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STMicroelectronics STTH30ST06WY, Automotive Grade, Fast Recovery Diode, 600 V DC reverse, 30 A average rectified, 50 ns reverse recovery time, DO-247-2 through hole, AEC-Q101 qualified, -40°C to 175°C junction.

$3.5100Ref. price · indicative, final on quote
STMicroelectronics STTH30ST06WY datasheet (PDF)
PackagingDO-247-2 (Straight Leads)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH30ST06WY specifications
ParameterValue
MountingThrough Hole
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if3.6 V @ 30 A
Current - reverse leakage @ vr50 µA @ 600 V
Current - average rectified30A
Operating temperature - junction-40°C ~ 175°C
GradeAutomotive
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologyStandard
QualificationAEC-Q101
CaseDO-247-2 (Straight Leads)
Reverse recovery time50 ns

Product details

The STMicroelectronics STTH30ST06WY is an automotive-grade fast-recovery epitaxial diode rated for 600 V reverse voltage and 30 A average forward current. Its 50 ns reverse recovery time (trr) places it in the ultrafast class, making it suited for high-frequency switching in automotive power converters, DC-DC stages, and motor-drive freewheeling paths.

AEC-Q101 qualification and what it buys you

For a BOM destined for engine control units, transmission modules, or on-board chargers, that qualification is the gatekeeper — a commercial-grade diode won't hold up under the same thermal and vibration profile.

Package and mounting — DO-247 through-hole

The DO-247 package with straight leads is a through-hole format that mates to a standard TO-247 footprint. The tab is the anode; the two leads are cathode and sense. Heatsink mounting requires an insulated shoulder washer or thermal pad — the tab is electrically live. The through-hole body handles the 30 A average current without the thermal limitations of a surface-mount package in the same power class.

Frequently asked questions

Is STTH30ST06WY AEC-Q101 qualified?

Yes, the STTH30ST06WY is AEC-Q101 qualified, making it suitable for automotive-grade applications.

What is the closest pin-compatible alternative to STTH30ST06WY?

The base product number STTH30 covers a family of 30 A fast-recovery diodes in DO-247. The STTH30ST06WY is the automotive-qualified variant; the non-automotive STTH30ST06 shares the same electrical ratings and package but lacks AEC-Q101 certification. Pin-compatible across the family, but verify the grade requirement for your application.

Can STTH30ST06WY be used in high frequency applications?

Yes, the 50 ns reverse recovery time supports switching frequencies into the tens of kilohertz range in hard-switched topologies, making it suitable for high-frequency PFC and DC-DC converters.