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STMicroelectronics STTH3002CT — Discrete Semiconductors

STTH3002CT 200V 15A dual common-cathode fast-recovery diode

MPNSTTH3002CT
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STMicroelectronics STTH3002CT dual common-cathode fast-recovery diode, 200 V, 15 A per diode, 22 ns trr, TO-220-3 package, through-hole mount.

$2.3000Ref. price · indicative, final on quote
STMicroelectronics STTH3002CT datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STTH3002CT specifications
ParameterValue
Diode typeStandard
MountingThrough Hole
Voltage - DC reverse (Vr)200 V
Voltage - forward (Vf) (Max) @ if1.05 V @ 15 A
Current - reverse leakage @ vr20 µA @ 200 V
Current - average rectified (Io) (per diode)15A
Operating temperature - junction175°C(Max)
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
CaseTO-220-3
Diode configuration1 Pair Common Cathode
Reverse recovery time22 ns

Product details

The 22 ns reverse recovery time (trr) is the parameter that defines its application space: it keeps reverse-recovery charge low enough for continuous-conduction-mode PFC boost stages, output rectification in 100 kHz+ forward converters, and snubber clamping where a standard recovery diode would overheat from switching losses.

15 A per die, 1.05 V Vf — thermal budget in a TO-220

Each of the two dice in the TO-220-3 package is rated 15 A average with a maximum forward voltage of 1.05 V at that current. The common-cathode configuration means the two anodes are separate pins (pins 1 and 3), the cathode is the centre pin and the metal tab. In a continuous 15 A per-diode load the total dissipation reaches 31.5 W; the TO-220 junction-to-case thermal resistance (not listed here) typically runs 1–2 °C/W, so a heatsink is mandatory above a few amps per die.

The base product number is STTH3002; the CT suffix denotes the TO-220 package variant.

Frequently asked questions

What is the reverse recovery time (trr) of STTH3002CT?

The reverse recovery time is 22 ns. This is the time from zero-crossing of the forward current to the reverse current decaying to 10 % of its peak value, measured under standard test conditions. It is fast enough for 100 kHz+ hard-switched converters.

Can I use STTH3002CT as a replacement for STTH2002CT?

The STTH2002CT is a lower-current variant (20 A vs 30 A total, 10 A per diode vs 15 A per diode) in the same TO-220 package. The STTH3002CT has a higher current rating and the same 200 V reverse voltage and 22 ns trr. It can replace the STTH2002CT in the same footprint provided the higher current capability does not exceed the downstream circuit's surge rating or heatsink capacity.

Is STTH3002CT RoHS compliant?

Yes, the STTH3002CT is ROHS3 compliant, meaning it meets the EU RoHS directive without any of the exempted substances above the threshold limits.