1N4623-1E3/TR

Overview

The 1N4623-1E3/TR is a single Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 4.3 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to 175°C. It utilizes a DO-204AH (DO-35) axial through-hole package and is supplied in tape and reel packaging.

Feature Summary

• Provides stable voltage regulation at a nominal 4.3 V level
• Operates reliably across an extended industrial temperature range up to 175°C
• Constructed in a hermetically sealed glass axial leaded package

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• Clamping applications for signal lines

Procurement Notes

Verify the specific suffix -1E3/TR confirms RoHS compliance and tape-and-reel packaging format. Confirm the manufacturer designation as Microchip Technology to ensure component authenticity. Check current availability status as supply may be limited or subject to long delivery times from the original equipment manufacturer.

Selection Notes

Select this component when a 4.3 V Zener voltage is required with moderate power handling capabilities. Ensure the circuit design accommodates the specified 500 mW power dissipation limit. Verify that the through-hole DO-204AH package fits the printed circuit board layout constraints and that the operating temperature range meets environmental requirements.

Part Context

This part belongs to the standard 1N4623 series of Zener diodes produced by Microchip Technology. It represents a legacy industry-standard part number adapted for modern manufacturing processes. The device serves as a fundamental discrete semiconductor component for basic analog circuit functions within broader diode product families.

Replacement Considerations

Direct substitutes include the non-tape version 1N4623-1E3. Other compatible alternatives may include parts from different manufacturers sharing identical electrical specifications and package dimensions, provided they meet the same thermal and voltage ratings.