DF443-630 is a fast recovery diode in disc design. It has a repetitive peak reverse voltage VRRM of 1000-1800 V and low static losses. Mean forward current IFAV is 630А. Industry standard design enables easy installation into existing equipment. Maximal junction temperature Tjmax is 125 °C. Diameter of the contact surface is 34 mm.

Fast recovery (high frequency) diodes are used in static energy converters and other AC and DC circuits for frequencies of 2000 Hz or more, as well as various power units requiring low reverse recovery time trr and low recovery charge Qrr. A special feature of such diodes is their high current-carrying capacity at high frequencies.

Fast recovery diodes by Nimatek Technology have the following features:
∙ high resistance to electric and thermal cycling;
∙ low dynamic losses;
∙ low values of reverse recovery time trr and reverse recovery charge;
∙ high reliability means minimal equipment downtime;
∙ optimized for industrial use.

At the customer’s request Nimatek Technology is able to select the optimal power diode for given operation modes. It is also possible to ship ready-to-use power semiconductors in assembly with heatsinks.