1N4688-TP

Overview

The MCC 1N4688-TP is a 500mW silicon Zener diode housed in a DO-35 axial leaded package. It provides a nominal Zener voltage of 4.7V with a standard tolerance of ±5%. The device features a maximum forward voltage of 1.5V at 100mA and a maximum reverse leakage current of 10µA at 4V. It supports a junction temperature up to 200°C and includes double slug type, hermetically sealed glass construction.

Feature Summary

• Hermetically sealed glass construction using double slug type design for high reliability
• Sharp reverse characteristic for precise voltage regulation
• Lead-free finish compliant with RoHS standards

Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Procurement Notes

Verify the component authenticity by checking for the cathode band marking and part number on the glass body. Ensure the ordering suffix matches the required packaging format: -TP for tape and reel, -AP for ammo packing, or -BP for bulk. Confirm compliance with RoHS directives and check for any specific environmental exemptions regarding lead in glass.

Selection Notes

Select this component when a 4.7V regulation point is required within a 5% tolerance range. The 500mW power dissipation rating suits low-current applications. Verify that the axial DO-35 package fits the board layout constraints and that the operating temperature range meets the system requirements.

Part Context

This part belongs to the 1N4678 through 1N4717 series of 500mW silicon Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 1.8V to 43V. The 1N4688 specifically corresponds to the 4.7V nominal voltage designation within this standardized lineup.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4688 equivalents. Ensure replacement parts match the 4.7V nominal voltage, 500mW power rating, and DO-35 package dimensions. Verify that the replacement also offers similar reverse leakage and forward voltage characteristics.