SF31 to SF38 3.0 Amp Super Fast Rectifier 50 to 600 Volts
The SF31–SF38 series from MCC are high‑surge, low‑forward‑voltage, high‑current rectifier diodes designed for reliable operation in demanding applications. They feature a 3.0 A super‑fast surge capability and operate from –55 °C to +125 °C.
The document lists detailed electrical characteristics, including forward voltage drops, reverse recovery times, junction capacitance, and derating curves, and includes typical forward and reverse characteristic graphs as well as test circuit diagrams.
| Maximum Surge Current | 3.0 A |
|---|---|
| Operating Temperature Range | -55 °C to +125 °C |
| Storage Temperature Range | -55 °C to +150 °C |
| Forward Voltage Drop (SF31‑SF34) | 0.95 V @ 3.0 A |
| Forward Voltage Drop (SF35‑SF36) | 1.3 V @ 3.0 A |
| Junction Capacitance (SF31‑SF34) | 100 pF @ 1 MHz, 4 V |
| Reverse Recovery Time | 35 ns |
| Peak Forward Surge Current | 100 A (8.3 ms half‑sine) |
| Derating for Capacitive Load | Reduce current by 20 % |
The series is rated for a 3.0 A super‑fast surge current.
They operate from –55 °C up to +125 °C.
The forward voltage drop is about 0.95 V at a forward current of 3.0 A.