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STTH1L06RL

STTH1L06RL 600V 1A Fast Recovery Diode, DO-41, 80 ns trr

MPNSTTH1L06RL
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STMicroelectronics STTH1L06RL, 600 V 1 A fast recovery rectifier, 80 ns trr, DO-204AL (DO-41) axial package, through-hole mount, ROHS3 compliant.

$0.2023Ref. price · indicative, final on quote
STMicroelectronics STTH1L06RL datasheet (PDF)
PackagingDO-204AL, DO-41, Axial
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH1L06RL specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)600 V
Voltage - forward (Vf) (Max) @ if1.3 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-204AL, DO-41, Axial
Reverse recovery time80 ns

Product details

The STTH1L06RL is a 600 V, 1 A fast recovery rectifier from STMicroelectronics, built for the secondary-side and PFC stages of switch-mode power supplies where recovery speed directly affects efficiency and ringing. Its 80 ns reverse recovery time (trr) is the key differentiator from a standard 50/60 Hz rectifier — it lets the diode turn off before the next switching cycle, keeping the reverse-recovery charge out of the MOSFET or IGBT turn-on loss budget.

DO-41 axial — footprint and lead forming

The DO-204AL (DO-41) axial package is a through-hole format with a body diameter of about 2.7 mm and lead diameter of 0.86 mm. If your board uses a 0.100-inch pitch hole pattern, the lead spacing on the reeled part is pre-set; confirm the lead form matches your PTH layout before committing the BOM line.

1.3 V forward drop at rated current

Forward voltage is 1.3 V maximum at 1 A, 25 °C junction. That 1.3 W conduction loss at full load is manageable in a DO-41 package if the ambient stays below 70 °C and the leads are soldered into a reasonable copper pad area.

For a new design that needs a through-hole fast recovery diode at 600 V / 1 A, this part is a straightforward BOM entry without a sourcing clock ticking.

Frequently asked questions

What is the difference between STTH1L06RL and a standard rectifier like 1N4007?

The 1N4007 is a general-purpose 50/60 Hz rectifier with a trr in the microsecond range — it will overheat and fail in a 100 kHz SMPS. The STTH1L06RL's 80 ns trr is two orders of magnitude faster, which keeps reverse-recovery losses low and allows operation in PFC, flyback, and forward converter secondary circuits.

Can STTH1L06RL be used in high-frequency SMPS applications?

Yes. The 80 ns trr and 600 V blocking voltage make it suited for continuous-conduction-mode PFC boost stages and secondary-side rectification in flyback and forward converters switching at 50–150 kHz. The 1 A average current rating limits it to lower-power designs — typically under 100 W output.