1N4695/TR

Overview

The Microchip Technology 1N4695/TR is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 8.7V with a standard tolerance of 5%. The device operates in a DO-35 glass axial-leaded package, suitable for through-hole mounting. It provides a maximum steady-state power dissipation of 500mW at ambient temperatures below 75°C. The component supports an internal metallurgical bond option and is available with screening options in accordance with MIL-PRF-19500 standards.

Feature Summary

• Provides stable voltage regulation within the 1N4678 to 1N4717 series range
• Features sharp reverse characteristic for precise clamping
• Offers internal metallurgical bond construction for enhanced reliability

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection for sensitive electronic components
• General-purpose voltage regulation in industrial equipment

Procurement Notes

Verify the specific suffix requirements for your application, as the base part number may require additional codes for military screening or tape-and-reel packaging. Confirm that the DO-35 package dimensions align with your PCB layout constraints. Ensure the 500mW power rating is sufficient for your operating conditions, considering derating factors at elevated temperatures. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a reliable 8.7V Zener reference is needed in a standard axial package. Consider the 5% tolerance for general regulation tasks where tight precision is not critical. Evaluate the thermal environment to ensure the 500mW dissipation limit is not exceeded. Compare against other series members if different voltage levels are required while maintaining the same package style.

Part Context

This device belongs to the 1N4678 through 1N4717 family of 0.5-watt Zener Voltage Regulators produced by Microchip Technology (formerly Microsemi). These components are widely used in industrial and commercial electronics for their robustness and standardized form factor. The series offers a broad selection of voltages from 1.8V to 43V, all sharing similar mechanical and electrical characteristics within the DO-35 package.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4695 equivalents meeting the same JEDEC registration. For military specifications, consider parts with MQ, MX, MV, or MSP prefixes if screening per MIL-PRF-19500 is necessary. Surface mount alternatives exist in the DO-213AA package for designs requiring smaller footprints.