1N4689E3

Overview

The 1N4689E3 is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It operates within the standard axial DO-35 glass package and supports through-hole mounting. The device provides a nominal Zener voltage of 7.5 V with a power dissipation rating of 500 mW. It features a tight voltage tolerance of ±5% and maintains a maximum reverse leakage current of 10 µA. The component is qualified for operation across an extended temperature range from -65 °C to +175 °C junction temperature.

Feature Summary

• Provides stable voltage regulation using a single Zener diode configuration in a hermetically sealed glass package.
• Supports high-temperature environments with a maximum junction temperature rating of 175 °C.
• Ensures precise voltage control with a standard ±5% tolerance on the nominal Zener voltage.

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• Clamping applications in signal processing paths

Procurement Notes

Verify the specific revision level and RoHS compliance status directly with Microchip Technology before procurement. Confirm that the DO-35 axial leaded package matches your board layout requirements. Ensure that the thermal management design accommodates the 500 mW power dissipation limit under worst-case operating conditions. Check for any specific handling instructions related to the glass encapsulation material.

Selection Notes

Select this component when a 7.5 V regulation point is required in a through-hole design. The DO-35 package offers a compact footprint suitable for general-purpose boards. Consider the ±5% tolerance if tighter precision is not critical. Verify that the 500 mW power rating aligns with the expected current draw in your specific circuit topology.

Part Context

This part belongs to the 1N468x series of Zener diodes produced by Microchip Technology. These components are widely used in industrial and commercial electronics for basic voltage regulation tasks. The E3 suffix typically indicates lead-free and RoHS-compliant manufacturing processes, aligning with modern environmental standards for semiconductor devices.

Replacement Considerations

Cross-reference with other manufacturers offering DO-35 packaged Zener diodes rated at 7.5 V and 500 mW. Ensure that any substitute component meets or exceeds the 175 °C maximum junction temperature specification. Verify that the replacement maintains the same ±5% voltage tolerance and similar reverse leakage characteristics to ensure circuit compatibility.