This one‑page datasheet lists the electrical and thermal specifications for Richardson's W4DA series power modules, including part numbers such as W4DA25, W4DA40, and W4DA90. The document is intended for engineers selecting appropriate modules for high‑power applications.
Key data include voltage ranges, continuous and surge current ratings, on‑state voltage, gate trigger voltage, thermal resistance, and maximum junction temperature. Package information and manufacturer contact details are also provided.
| On‑state voltage | up to 18 V |
|---|---|
| Gate trigger voltage (max) | 150 V |
| Thermal resistance (junction‑to‑case) | 50 °C/W |
| Maximum junction temperature | 128 °C |
The modules are rated for a maximum junction temperature of 128 °C.
The maximum gate trigger voltage is specified as 150 V at 25 °C.