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STTH102

STTH102 STMicroelectronics Fast Recovery Diode

MPNSTTH102
Active

STMicroelectronics STTH102, general-purpose fast recovery diode, 200 V, 1 A, 20 ns trr, DO-204AL (DO-41) axial, through-hole, ROHS3 compliant.

$0.4600Ref. price · indicative, final on quote
STMicroelectronics STTH102 datasheet (PDF)
PackagingDO-204AL, DO-41, Axial
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH102 specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if970 mV @ 1 A
Current - reverse leakage @ vr1 µA @ 200 V
Current - average rectified1A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageCut Tape (CT); Tape & Box (TB)
CaseDO-204AL, DO-41, Axial
Reverse recovery time20 ns

Product details

20 ns reverse recovery — the spec that changes the BOM

The STTH102 is a 200 V, 1 A general-purpose fast recovery diode from STMicroelectronics in a DO-41 axial package. Its 20 ns reverse recovery time (trr) is the key parameter that separates it from a standard 1N400x rectifier, which typically has a trr in the microsecond range.

Sizing the rectifier for the rail

Rated for 1 A average rectified current at 200 V DC reverse maximum, with a forward voltage drop of 970 mV at 1 A. The 1 µA reverse leakage at 200 V is a practical check for high-impedance bias circuits. Junction temperature is rated to 175 °C maximum, which gives headroom in a cramped enclosure.

Frequently asked questions

What is the STTH102 datasheet and key specifications?

Engineers need to verify electrical and mechanical fit before design-in.

Where can I buy STTH102 and what is the current price?

Buyers need to source the part cost-effectively and check stock.

What is the STTH102 equivalent or cross-reference?

Designers and buyers look for alternatives in case of shortage or competitive sourcing.

Is STTH102 obsolete or still in production?

Brokers and maintenance techs need lifecycle status to avoid end-of-life surprises.

Can STTH102 be used as a replacement for a standard 1N400x diode?

Techs often need a fast recovery upgrade while maintaining pin-to-pin compatibility.

What is the lead time and distributor availability for STTH102?

Sourcing buyers need lead time to plan procurement and avoid production delays.