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STMicroelectronics STTH1R06A — Discrete Semiconductors

STTH1R06A Fast Recovery Rectifier, 600V 1A, 45ns trr, SMA

MPNSTTH1R06A
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STMicroelectronics STTH1R06A, Fast Recovery Rectifier, Standard Diode Type, 600V DC Reverse Voltage, 1A Average Rectified Current, 45ns Reverse Recovery Time, 1.7V Forward Voltage at 1A, DO-214AC SMA Package, Surface Mount, 175°C Max Junction Temperature.

$0.5200Ref. price · indicative, final on quote
STMicroelectronics STTH1R06A datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH1R06A specifications
ParameterValue
Diode typeStandard
MountingSurface Mount
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.7 V @ 1 A
Current - reverse leakage @ vr1 µA @ 600 V
Current - average rectified1A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseDO-214AC, SMA
Reverse recovery time45 ns

Product details

45 ns trr — the number that defines this part

The STMicroelectronics STTH1R06A is a standard fast-recovery rectifier diode rated for 600 V DC reverse voltage and 1 A average rectified current. Its 45 ns reverse recovery time (trr) places it squarely in the fast-recovery class, designed to handle the high-frequency switching in power supplies, PFC stages, and flyback converters where recovery losses directly affect efficiency and thermal budget. The 1.7 V forward voltage at 1 A is typical for a 600 V fast diode — expect conduction loss to be a factor in the heatsink calculation, not a surprise.

Package and reflow reality

It comes in a DO-214AC (SMA) surface-mount package. That is a standard footprint for automated pick-and-place, but the SMA body is small — check your solder-paste stencil aperture for adequate fillet height. No MSL rating is listed in the record, so treat it as MSL 1 by default (no bake required) unless the reel label says otherwise.

Frequently asked questions

What is the reverse recovery time of the STTH1R06A?

The reverse recovery time (trr) is 45 ns, which qualifies it as a fast-recovery diode suitable for switching frequencies in the tens to low hundreds of kilohertz.

What are the specifications of the STTH1R06A?

The STTH1R06A is a 600 V, 1 A standard fast-recovery rectifier with a 45 ns reverse recovery time, 1.7 V forward voltage at 1 A, 1 µA reverse leakage at 600 V, and a 175°C maximum junction temperature. It is housed in a DO-214AC (SMA) surface-mount package.