1N4690

Overview

The Microchip Technology 1N4690 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and operates within an extended temperature range from -65°C to +175°C. It utilizes a DO-7 axial-leaded through-hole package, ensuring compatibility with standard PCB layouts. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 4 V and a forward voltage of 1.1 V at 200 mA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range.
• Constructed with glass axial-leaded DO-35/DO-7 packaging for reliable performance.
• Capable of handling high junction temperatures up to 175°C.

Applications

• General-purpose voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal processing

Procurement Notes

Verify the specific suffix requirements against the official datasheet before ordering, as variations exist for military screening or surface mount equivalents. Confirm RoHS compliance status, as standard versions may not meet current environmental directives. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability for critical designs.

Selection Notes

Select this component when a standard 5.6 V regulation point is required in a through-hole configuration. Consider the 500 mW power rating for thermal management in enclosed spaces. For tighter tolerances or surface mount needs, evaluate alternative suffixes or series members within the same family that offer different package outlines or precision levels.

Part Context

This part belongs to the 1N4678 through 1N4717 series of 0.5 W Zener Voltage Regulators produced by Microchip Technology. The series offers a wide selection of voltages from 1.8 V to 43 V in standard 5% tolerances. These components are JEDEC registered and widely used in industrial and commercial electronics requiring reliable voltage clamping.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4690 variants meeting the same 5.6 V, 500 mW, and DO-7 specifications. Surface mount alternatives like the 1N4690UR series provide similar electrical characteristics in a DO-213AA package. Verify pinout and thermal resistance compatibility during substitution.