The UES704 series from Microsemi is designed for high‑frequency power switching applications, operating at least 20 kHz. These ultra‑fast rectifiers feature very low forward voltage (1.15 V), fast recovery times (≈50 ns), low thermal resistance and high surge capability, making them suitable replacements for DO‑5 size devices.
The datasheet provides absolute maximum ratings, mechanical dimensions, electrical specifications, and optional high‑reliability (HR2) screening procedures. It also details power‑cycling endurance, with devices tested for over 25 000 on/off cycles, and includes notes on polarity options and recommended test setups.
| Forward Voltage | 1.15 V |
|---|---|
| Surge Current | 8.3 ms |
| Average DC Output Current | Ip @ To= = 100 °C |
| Peak Inverse Voltage | 200 V (UES704) |
| Polarity Options | Both polarities available |
The forward voltage is very low at about 1.15 V.
They have been demonstrated to survive more than 25 000 on/off cycles.
Yes, both standard and reverse polarity versions are offered.
The reverse recovery time is about 50 ns.