Vishay 120NQ045R Schottky Rectifier Diode

The Vishay 120NQ045R is a high-current Schottky rectifier diode designed for power conversion applications requiring low forward voltage drop and fast switching characteristics. This device is optimized for high-frequency operation in switching power supplies, DC-DC converters, and free-wheeling diode circuits.

Package Configuration

This device is housed in the D-67 Half-Pak package, a robust power semiconductor package designed for chassis mounting. The package provides excellent thermal transfer characteristics and mechanical durability for demanding operating environments. The half-pak configuration enables efficient heat dissipation when mounted to appropriate heatsinks.

Switching Performance

As a Schottky diode, the 120NQ045R exhibits fast recovery characteristics with no reverse recovery time, enabling operation at high switching frequencies without significant switching losses. This characteristic makes it particularly suitable for high-frequency power conversion circuits where efficiency is critical. The device features low junction capacitance of 5200 pF at 5V, minimizing charge storage effects.

• VRRM (Repetitive Reverse Voltage): 45 V

• IF(AV) (Average Forward Current): 120 A

• VFM (Forward Voltage): 570 mV maximum at 120 A

• IRM (Reverse Leakage Current): 10 mA at 45 V

• Junction Capacitance: 5200 pF at 5V, 1 MHz

• Package Type: D-67 Half-Pak

• Mounting: Chassis mount

• Compliance: RoHS compliant

Thermal Characteristics

The 120NQ045R is designed with optimized thermal performance to support high current operation. When properly mounted to an appropriate heatsink, the device maintains safe junction temperatures under full rated load. The Schottky construction inherently produces lower forward losses compared to conventional PN junction rectifiers, reducing thermal management requirements.

Application Areas

This rectifier is well-suited for switch-mode power supply output stages, low-voltage power converters, battery charging circuits, and DC power distribution systems. Its high current capability and low forward voltage characteristics make it ideal for applications where efficiency and thermal performance are critical design considerations.