1N4624E3/TR

Overview

The Microchip Technology 1N4624E3/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.7 V with a tolerance of ±5%. The device operates in the DO-204AH (DO-35) axial through-hole package and dissipates up to 500 mW. Key electrical parameters include a maximum reverse leakage current of 5 µA at 3 V, a Zener impedance of 1550 Ohms, and a test current of 250 µA. It supports an operating temperature range from -65°C to +175°C junction temperature.

Feature Summary

• Provides stable voltage regulation with a nominal 4.7 V breakdown characteristic
• Capable of handling power dissipation up to 500 mW in a compact axial leaded package
• Engineered for reliable operation across extreme temperatures ranging from -65°C to +175°C

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks in industrial equipment

Procurement Notes

Verify that the specific suffix 'E3' confirms RoHS compliance status as required by project specifications. Confirm the 'TR' designation indicates tape and reel packaging rather than bulk supply. Ensure the component meets environmental regulations applicable to the target deployment region before finalizing procurement orders.

Selection Notes

Select this component when a 4.7 V regulation point is needed within a through-hole design constraint. The 500 mW power rating suits low-current applications where thermal management is limited. Verify that the 1550 Ohm impedance aligns with circuit stability requirements under varying load conditions.

Part Context

This part belongs to the standard 1N4624 series of Zener diodes manufactured by Microchip Technology. It serves as the lead-free compliant variant of the 1N4624-1, maintaining identical electrical performance while adhering to modern environmental standards. The device is widely used in discrete semiconductor applications requiring robust voltage clamping capabilities.

Replacement Considerations

The 1N4624-1/TR is a direct functional equivalent offering identical electrical characteristics. Other compatible alternatives include the 1N4624 and 1N4624UR variants, provided the package style matches the existing board layout constraints.