1N4627C/TR

Overview

The Microchip Technology 1N4627C/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.2 V with a tight tolerance of ±2%. The device operates in the through-hole DO-35 (DO-204AH) axial leaded package and supports a maximum power dissipation of 500 mW. It is qualified to MIL-PRF-19500/435 standards, ensuring reliability across an extended operating temperature range from -65°C to +175°C. The component utilizes a metallurgically bonded glass construction for hermetic sealing.

Feature Summary

• Hermetically sealed glass axial package ensures environmental protection and long-term stability.
• Tight voltage tolerance of ±2% provides precise reference voltage accuracy.
• Extended thermal capability allows reliable operation in high-temperature environments up to 175°C.
• Military-grade qualification meets rigorous MIL-PRF-19500/435 performance requirements.

Applications

• Precision voltage reference circuits
• Overvoltage protection networks
• Temperature-compensated oscillator references
• High-reliability aerospace systems

Procurement Notes

Verify that the suffix /TR indicates tape-and-reel packaging configuration. Confirm the C suffix denotes the specific ±2% tolerance grade required for the design. Ensure procurement channels provide valid traceability documentation consistent with military specifications. Check RoHS status as these devices may not be compliant depending on the manufacturing era.

Selection Notes

Select this component when a stable 6.2 V reference is needed with strict tolerance limits. The DO-35 package suits designs requiring through-hole mounting. Consider the low test current of 250 uA for low-power circuit integration. Verify that the 500 mW power rating aligns with the expected thermal load in the final assembly.

Part Context

This part belongs to the 1N4627 series of low-level Zener diodes manufactured by Microchip Technology. It serves as a specialized variant within the broader family of glass-passivated junction devices. The designation distinguishes it from standard commercial grades by offering tighter electrical tolerances and enhanced durability suitable for demanding operational conditions.

Replacement Considerations

Equivalent parts include JAN1N4627C-1 and JANTX1N4627C-1. These variants share identical electrical characteristics but may differ in specific military screening levels or packaging formats. Verify pinout compatibility and package dimensions before substitution.