1N1126A

Single Diodes Overview

The 1N1126A is a standard recovery rectifier manufactured by Microchip Technology. It features a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 12 A. The device utilizes a DO-4 (DO-203AA) axial leaded package with stud mount capability. Key electrical characteristics include a maximum DC blocking voltage of 400 V, a forward voltage drop of 1.2 V at 30 A, and a maximum non-repetitive surge current of 250 A. The component operates within a junction temperature range of -65°C to +200°C.

Single Diodes Feature Summary

• Standard recovery rectifier design for general-purpose power conversion applications
• High thermal stability supporting operation up to a 200°C junction temperature
• Robust mechanical construction with stud mount options for high-power dissipation

Single Diodes Applications

• Industrial power supply rectification
• DC-to-AC inverter circuits
• Battery charging systems

Single Diodes Procurement Notes

Verify the specific suffix requirements against the official Microchip datasheet to ensure correct voltage tolerance and screening levels. Confirm that the DO-4 package dimensions match the target PCB or chassis mounting constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the supplier provides valid traceability documentation for critical infrastructure projects.

Single Diodes Selection Notes

Select this component when a 400 V rating and 12 A continuous current capacity are required in a ruggedized axial package. Consider the 200°C junction temperature limit for high-temperature environments where silicon carbide alternatives may not be necessary. Evaluate the thermal resistance characteristics to determine appropriate heatsinking solutions for the intended duty cycle and ambient conditions.

Single Diodes Part Context

The 1N1126A belongs to the legacy 1N series of glass-passivated silicon planar junction rectifiers produced by Microchip Technology. This series is widely recognized for its reliability in harsh environments and compatibility with traditional through-hole mounting techniques. The part serves as a direct replacement for older military-grade specifications while maintaining modern manufacturing consistency.

Single Diodes Replacement Considerations

Direct equivalents include the 1N1126AR variant which shares identical electrical specifications but differs in packaging configuration. Verify pinout compatibility and thermal performance metrics before substituting with generic industry-standard parts from other manufacturers.