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STMicroelectronics STTH15L06G-TR — Discrete Semiconductors

ST STTH15L06G-TR Fast Recovery Diode, 20 A, 600 V, 85 ns trr

MPNSTTH15L06G-TR
Active

STMicroelectronics STTH15L06G-TR, Standard Fast Recovery Diode, 600 V Vr, 20 A Io, 85 ns trr, 1.55 Vf @ 15 A, 15 µA leakage, 175 °C Tj, D²PAK (TO-263), Surface Mount, Tape & Reel.

$1.8300Ref. price · indicative, final on quote
STMicroelectronics STTH15L06G-TR datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH15L06G-TR specifications
ParameterValue
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.55 V @ 15 A
Current - reverse leakage @ vr15 µA @ 600 V
Current - average rectified20A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Reverse recovery time85 ns

Product details

20 A, 600 V fast recovery — PFC and SMPS output rectifier

The STTH15L06G-TR is a 20 A average, 600 V fast recovery diode from STMicroelectronics, built for continuous-conduction-mode PFC boost stages, hard-switched SMPS output rectification, and freewheeling paths in motor drives. Its 85 ns reverse recovery time keeps turn-off losses low enough that the D²PAK package can handle 20 A without oversized heatsinking, provided the PCB tab is soldered to a copper island.

85 ns trr — switching loss and snubber budget

At 85 ns trr, this diode recovers faster than standard 200–500 ns ultrafast parts. The recovery charge is low enough that a simple RC snubber across the diode usually contains the ringing.

D²PAK tab-soldered thermal path

The D²PAK (TO-263) package delivers the 20 A rating only when the exposed tab is soldered to a PCB copper area. Without that thermal mass, the junction climbs past 175 °C at full load.

ST lists the STTH15L06G-TR as Active.

Frequently asked questions

What is STTH15L06G-TR's listed speed?

The diode is classified as Fast Recovery (trr ≤ 500 ns at Io > 200 mA). The datasheet specifies a reverse recovery time of 85 ns under test conditions.