1N4757AURE3

Overview

The Microchip Technology 1N4757AURE3 is a surface-mount Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 51V with a standard tolerance of ±5%. The device is rated for a power dissipation of 1W and utilizes silicon technology in a unidirectional configuration. It is housed in the DO-213AB package, also known as MELF-2, which provides a hermetically sealed glass construction. This component meets RoHS compliance standards and is suitable for high-density circuit designs requiring low parasitic effects.

Feature Summary

• Hermetically sealed glass construction ensures reliability in demanding environments
• Surface mount design facilitates high-density PCB assembly
• Standard 5% voltage tolerance allows for precise regulation
• Low parasitic characteristics support high-frequency performance

Applications

• Voltage regulation in high-density electronic circuits
• Clipping and clamping applications
• High-reliability systems requiring source control drawings
• General-purpose voltage reference circuits

Procurement Notes

Verify that the ordering suffix matches the required package type and tolerance level. Confirm RoHS compliance status if environmental regulations apply to the end product. Ensure the supplier provides documentation confirming the hermetic seal integrity for critical reliability applications. Cross-reference the manufacturer part number with official Microchip databases to avoid counterfeit components.

Selection Notes

Select this component when a surface-mount solution is required for 51V regulation. The DO-213AB package is preferred over through-hole options for space-constrained designs. Consider the thermal resistance of the glass body during power dissipation calculations. Verify that the 5% tolerance aligns with the circuit's voltage accuracy requirements.

Part Context

This part belongs to the 1N47xx series of 1-watt Zener diodes manufactured by Microchip Technology. The series offers various voltage ratings from 3.3V to 100V. The 'A' suffix typically denotes a tighter 5% tolerance compared to the standard 10% version. The 'URE3' suffix indicates the specific surface-mount package and lead-free composition.