20CTQ045

The 20CTQ045 from Vishay Dale is a high-performance Schottky rectifier diode array designed for applications requiring low forward voltage drop and fast switching. It consists of two Schottky diodes in a common cathode configuration, housed in a TO-220-3 through-hole package. This device is rated for a peak repetitive reverse voltage of 45V and can conduct an average rectified forward current of up to 10A per leg (20A total). The forward voltage is typically 0.57V at 10A and 25°C, making it suitable for low-loss power conversion.

Key electrical characteristics include a maximum forward voltage of 0.70V at 10A and 25°C, and a typical reverse current of only 0.03mA at 25°C. The device can withstand a non-repetitive surge current of 260A per leg. The junction temperature range is -55°C to +150°C, with a thermal resistance of 3.25°C/W junction-to-case, allowing efficient heat dissipation when mounted on a suitable heatsink.

This diode array is ideal for switching power supplies, converters, free-wheeling diodes, and reverse battery protection circuits. The TO-220-3 package is easy to mount on a heatsink for thermal management. The device is lead-free and RoHS compliant, though certification should be verified with the manufacturer.

The 20CTQ045 is part of the 20CTQ series, available in various voltage ratings. For alternative packaging, refer to the D2PAK (20CTQ045S) or TO-262 (20CTQ045-1) variants.