The document describes the features and characteristics of the SPA548-01 high voltage diode bridge assembly from Solid State Devices, Inc., including 100kHz operation, airborne application up to 50,000 ft, high efficiency, low EMI/Corona discharge, thermally conductive aluminum base plate, etc.
The SPA548-01 is a high‑voltage diode bridge assembly rated for 5.5 kV peak reverse voltage and 2 A average forward current. It is designed for airborne applications up to 50,000 ft, featuring a thermally conductive aluminum base plate, helicoil mounting inserts, and low EMI/corona discharge.
Maximum ratings include a DC blocking voltage of 2 kV per leg, peak surge current of 20 A, and operating temperature range from –45 °C to +100 °C. Electrical characteristics list forward voltage drop, reverse leakage currents, junction capacitance, and reverse recovery time. The package outline provides dimensions and mounting details.
| DC Blocking Voltage (Ve) | 2000 V |
|---|---|
| Half Wave Rectified Forward Current (Ip) | 2.0 A |
| Maximum Dielectric Voltage (VDrEL) | 8000 V |
| Operating Temperature Range (Base plate) | -45 to +100 °C |
| Max Reverse Leakage Current (25°C) | 5 nA |
| Maximum Junction Capacitance (c) | 20 pF |
The maximum reverse voltage (DC blocking voltage) per leg is 2 kV.
The half‑wave rectified forward current averaged over a full cycle is 2.0 A.
The device operates from –45 °C to +100 °C at the base plate.