R43120TS

Single Diodes Overview

The R43120TS is a single-phase silicon standard rectifier diode manufactured by Microchip Technology. It features a maximum repetitive reverse voltage of 1200 V and an average forward current rating of 150 A. The device exhibits a maximum forward voltage drop of 1.1 V at specified conditions and supports a maximum surge current of 2.5 kA. Designed for chassis or stud mounting, it utilizes the DO-205AA (DO-8) metal package. The component operates within a temperature range from -65°C to +175°C junction temperature.

Single Diodes Feature Summary

• High current handling capability with 150 A average rectified current rating
• Robust voltage blocking performance up to 1200 V repetitive reverse voltage
• Mechanical design optimized for direct chassis or stud mounting applications
• Constructed using silicon technology for reliable standard rectification

Single Diodes Applications

• Industrial power supply rectification circuits
• Motor drive inverter bridge configurations
• Welding equipment power stages
• Uninterruptible power supply (UPS) systems

Single Diodes Procurement Notes

Verify the manufacturer designation carefully, as historical records may reference Microsemi. Confirm the specific suffix TS indicates the correct thermal interface and mounting configuration. Ensure the DO-205AA package dimensions match your mechanical constraints. Cross-reference the datasheet revision date to confirm electrical parameters remain consistent with your design requirements.

Single Diodes Selection Notes

Select this component when high current capacity and moderate voltage blocking are required in a robust mechanical package. Consider the 1.1 V forward voltage drop for thermal management calculations. Evaluate the 2.5 kA surge current rating against potential inrush conditions in your specific circuit topology. Ensure adequate heatsinking is provided given the chassis mount style.

Single Diodes Part Context

This device belongs to the family of high-power silicon rectifiers designed for industrial environments. It serves as a fundamental building block for converting AC to DC in heavy-duty applications. The transition from Microsemi to Microchip Technology maintains the part number integrity while updating manufacturing standards.

Single Diodes Replacement Considerations

Direct substitutes must match the 150 A current, 1200 V voltage, and DO-205AA package. Verify equivalent forward voltage and surge ratings. Generic replacements may lack the specific mounting hole patterns or thermal characteristics of the original chassis-mount design.