This document describes the features and characteristics of the DCR1277SD model, including high power drives, high voltage power supplies, and DC motor control. The product features double side cooling, high surge capability, high mean current, and fatigue-free operation.
The DCR1277SD is a phase‑control thyristor intended for high‑power drives, high‑voltage power supplies, and DC motor control. It features double‑side cooling, high surge capability, high mean current, and fatigue‑free operation.
The datasheet details voltage and current ratings, thermal resistance, dynamic characteristics, package dimensions, and links to related application notes for junction temperature calculation and device clamping.
| Maximum forward voltage (Vor) | 3600 V |
|---|---|
| Mean on‑state current (double side cooled) | 1259 A |
| RMS on‑state current (double side cooled) | 1977 A |
| Continuous on‑state current (double side cooled) | 1832 A |
| Clamping force | 22 kN |
| Storage temperature range | 55‑125 °C |
The device is rated for a maximum forward voltage of 3600 V.
The specified clamping force is 22 kN (with a +10 % tolerance).