11DF3 - 11DF4 ultra fast rectifier diodes with features including high current capability, high surge current capability, high reliability, low reverse current, low forward voltage drop, superfast recovery time, etc.
The 11DF3 and 11DF4 are ultra‑fast DO‑41 rectifier diodes offered by ELC. They feature high current capability, low reverse current, low forward voltage drop, and fast recovery time, making them suitable for high‑speed switching applications.
Key electrical ratings include a maximum reverse voltage of 300 V (11DF3) or 400 V (11DF4), forward current of 1 A, peak surge current of 30 A, and a reverse recovery time of 35 ns. Mechanical details such as a molded plastic case, UL94V‑0 epoxy, and a weight of 0.339 g are also listed.
| Case | DO-41 molded plastic |
|---|---|
| Epoxy | UL94V-0 flame retardant |
| Lead | Axial lead solderable per MIL-STD-202 |
| Polarity | Color band denotes cathode end |
| Weight | 0.339 gram |
| Maximum Recurrent Peak Reverse Voltage (VRRM) | 300 V (11DF3) / 400 V (11DF4) |
| Maximum RMS Voltage (VRMS) | 210 V (11DF3) / 280 V (11DF4) |
| Maximum DC Blocking Voltage (Voc) | 300 V (11DF3) / 400 V (11DF4) |
| Maximum Average Forward Current (IF(AV)) | 1.0 A |
| Maximum Peak Forward Surge Current | 30 A (8.3 ms single half‑sine wave) |
| Maximum Peak Forward Voltage (VF) | 1.25 V at IF = 1.0 A |
| Maximum Reverse Recovery Time (Trr) | 35 ns |
| Junction Temperature Range | -65 °C to +150 °C |
| Storage Temperature Range | -65 °C to +150 °C |
| Low Reverse Current | 0.205 |
| Low Forward Voltage Drop | 0.166 |
They use a DO‑41 molded plastic case.
The 11DF4 diode is rated for a maximum reverse voltage of 400 V.
The reverse recovery time is specified as 35 ns.
Each diode weighs 0.339 gram.