This document describes the features and characteristics of the 301U(R) series standard recovery diodes, including wide current range, high voltage ratings, high surge current capabilities, stud cathode and stud anode versions, high resistance to acceleration, etc. Typical applications include converters, power supplies, machine tool controls, high power drives, medium traction applications, etc.
The 301U(R) Series are standard recovery diodes offered in stud‑cathode and stud‑anode versions. They feature a wide current range, high voltage ratings up to 2500 V, high surge capability and strong resistance to acceleration, making them suitable for converters, power supplies, machine‑tool controls, high‑power drives and medium‑traction applications.
The bulletin lists detailed electrical ratings such as maximum average forward current of 330 A, RMS forward current of 520 A and peak surge currents up to 8250 A (10 ms). Thermal data include a junction‑to‑case resistance of 0.14 K·W and a recommended mounting torque of 37 N (±20%). Mechanical dimensions and ordering codes are also provided.
| Maximum average forward current | 330 A |
|---|---|
| Maximum RMS forward current | 520 A |
| Maximum peak one‑cycle surge current (10 ms) | 8250 A |
| Junction operating temperature range | -40 °C to 180 °C |
| Thermal resistance, junction to case | 0.14 K·W |
| Allowed mounting torque | 37 N (±20%) |
The series is rated for up to 2500 V at the 250 A current level.
A torque of 37 N with a tolerance of +0 % to –20 % is recommended.
The devices can be stored between –40 °C and 200 °C.
They are used in converters, power supplies, machine‑tool controls, high‑power drives and medium‑traction applications.