1N4756AGE3/TR

Overview

The Microchip Technology 1N4756AGE3/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 47 V with a tolerance of ±5%. The component operates in the DO-41 axial through-hole package and supports a power dissipation of 1 W. It maintains an operating temperature range from -65 °C to +175 °C, ensuring reliability under extreme conditions. The device exhibits a maximum reverse leakage current of 5 µA at the rated voltage and has a Zener impedance of 70 Ohms. It is supplied in a reel packaging format.

Feature Summary

• Provides stable voltage regulation within a wide thermal operating range suitable for harsh environments
• Utilizes compression bonded construction for enhanced mechanical durability and hermetic sealing
• Supports high surge current handling capabilities typical of the 1N47xx series

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 suffix 'e3' confirms lead-free compliance and RoHS status as per manufacturer documentation. Confirm the 'TR' designation indicates reel packaging rather than tape-and-reel variations that may affect automated assembly compatibility. Cross-reference the exact part number against the latest Microchip datasheet to ensure no functional changes due to manufacturing updates or obsolescence notices.

Selection Notes

Select this component when a 47 V regulation point is required with high-temperature resilience up to 175 °C. The DO-41 package is appropriate for through-hole mounting processes. Ensure the circuit design accounts for the 1 W power dissipation limit and the specific Zener impedance characteristics at the test current to maintain accuracy in precision regulation tasks.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes manufactured by Microchip Technology. The series is widely recognized for its robustness and availability in various voltage ratings. The addition of the 'e3' suffix denotes environmental compliance, while the 'AG' typically refers to specific marking or lot traceability codes defined by the manufacturer for quality control purposes.

Replacement Considerations

Direct replacements include other manufacturers' 1N4756A variants meeting the same electrical specifications. Verify pinout compatibility and package dimensions before substitution. Ensure any alternative part supports the required 175 °C maximum junction temperature and similar leakage current limits.