1N2129AR

Single Diodes Overview

The 1N2129AR is a silicon rectifier diode manufactured by Microchip Technology, housed in the DO-5 (DO-203AB) stud mount package. It features a maximum repetitive peak reverse voltage of 100 V and supports a continuous forward current of 70 A. The device exhibits a maximum forward voltage drop of 1.25 V at rated current and a low leakage current of 25 µA. Designed for robust industrial applications, it utilizes glass passivated die construction with a glass-to-metal seal to ensure reliability under high surge conditions.

Single Diodes Feature Summary

• Utilizes glass passivated die technology for enhanced durability
• Features glass-to-metal seal construction for environmental protection
• Supports stud mount installation via screw type mounting

Single Diodes Applications

• Industrial power supply rectification
• High current DC conversion circuits
• General purpose rectifying in heavy duty equipment

Single Diodes Procurement Notes

Verify the manufacturer designation as Microchip Technology or its acquired entities such as GeneSiC Semiconductor, as component sourcing may vary across historical product lines. Confirm the specific suffix 'AR' corresponds to the required pin configuration where the stud serves as the anode. Ensure the package matches the DO-5 form factor and that the electrical ratings align with the 100 V and 70 A specifications before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when a high-current capability of 70 A is required within a 100 V reverse voltage limit. The stud mount design facilitates direct thermal management to heatsinks, making it suitable for applications where space constraints preclude larger through-hole packages. Consider the 1.25 V forward voltage drop for efficiency calculations in low voltage output stages requiring significant amperage.

Single Diodes Part Context

This part belongs to the standard recovery rectifier family, often associated with GeneSiC Semiconductor products now integrated into Microchip Technology's portfolio. The 1N2129 variant specifically denotes the 100 V rating, distinguishing it from other voltages in the same physical package series. It represents a legacy industrial standard component widely used in established power electronics designs.

Single Diodes Replacement Considerations

Cross-reference with other 1N2129 variants from different manufacturers ensuring identical DO-5 packaging and matching 100 V / 70 A ratings. Verify that substitute components maintain the same stud-as-anode polarity and similar forward voltage characteristics to ensure circuit compatibility without redesign.