STMicroelectronics STTH3R02AFY, Automotive Fast Recovery Diode, 200V reverse, 3A average, 21ns trr, AEC-Q101, SOD-128 flat package, -40°C to 175°C junction.
| Parameter | Value |
|---|---|
| Series | ECOPACK®2 |
| Mounting | Surface Mount |
| Voltage - DC reverse (Vr) | 200 V |
| Voltage - forward (Vf) (Max) @ if | 1.02 V @ 3 A |
| Current - reverse leakage @ vr | 1.6 µA @ 200 V |
| Current - average rectified | 3A |
| Operating temperature - junction | -40°C ~ 175°C |
| Grade | Automotive |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Technology | Standard |
| Qualification | AEC-Q101 |
| Case | SOD-128 |
| Reverse recovery time | 21 ns |
The 21 ns trr is specified at the rated forward current and reverse voltage — fast enough to keep switching losses low in 100–200 kHz converters, where the recovery tail would otherwise dominate the dissipation in the diode. Pair it with a MOSFET that has a comparable Qrr to balance the commutation loop.
The reverse recovery time is 21 ns, measured at the rated forward current and reverse voltage. This places it in the fast-recovery class, suitable for switching frequencies above 100 kHz in automotive converters.
Yes, it is AEC-Q101 qualified, which means it has passed the automotive-grade stress tests for temperature, bias, and humidity. It also carries the Automotive grade designation and is part of the ECOPACK2 series for lead-free soldering.
The STTH3R02AFY is the automotive-grade variant with AEC-Q101 qualification, while the STTH3R02 is the commercial-grade version. The electrical specs — 200 V, 3 A, 21 ns trr — are the same; the difference is in the qualification level and the temperature range (the AFY variant supports 175°C junction).