DF20NA80S

Bridge Rectifier Overview

The SanRex DF20NA80S is a three-phase rectifier bridge diode module utilizing silicon technology. It features a Single In-line Package (SIP) design with screw mounting capabilities. The device supports a repetitive peak reverse voltage of 800 V and delivers a DC output current of 20 A at a case temperature of 111°C. Key electrical parameters include a maximum forward voltage drop of 1.2 V at 25°C and 20 A, and an isolation breakdown voltage of 2500 V RMS between terminals and the case. The module operates within a junction temperature range of -40°C to +150°C and weighs approximately 18 g.

Bridge Rectifier Feature Summary

• Single In-line Package (SIP) construction for compact integration
• Very low forward voltage drop characteristics
• High surge current capability for robust performance
• 2500V isolation rating between terminals and case

Bridge Rectifier Applications

• Welding and Plasma Cutting Machines
• Battery Chargers
• Power Supplies
• Motor Controls
• Air Conditioner Units
• Home Appliance

Bridge Rectifier Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS directive compliance status through supplier documentation. Ensure proper thermal management during installation, as the module requires a case temperature of 111°C for rated current operation. Adhere to the recommended mounting torque of 0.8 N·m for M3 screws to maintain mechanical stability and thermal contact integrity.

Bridge Rectifier Selection Notes

Select this module for applications requiring a three-phase full-wave rectification configuration. The 800 V reverse voltage rating suits systems operating below this threshold. Consider the 20 A DC output capacity relative to load requirements. The SIP package facilitates easy mounting on heat sinks. Verify that the operating environment stays within the specified -40°C to +150°C junction temperature limits.

Bridge Rectifier Part Context

The DF20NA80S belongs to the SanRex DF20NA series of SIP diode modules. This series includes variants with different voltage ratings, such as the DF20NA160S which offers a 1600 V rating. Both share similar physical dimensions and current handling capabilities, differing primarily in their peak reverse voltage specifications. The series is designed for industrial power conversion applications.

Bridge Rectifier Replacement Considerations

The DF20NA160S is a direct pin-compatible alternative within the same series offering higher voltage tolerance. Other manufacturers' three-phase bridge rectifiers with matching 20 A current and 800 V voltage ratings may serve as substitutes if thermal impedance and package dimensions are verified.