1N4752AUR/TR

Overview

The 1N4752AUR/TR is a single silicon Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 33 V with a power dissipation rating of 1 W and a voltage tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C junction temperature. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 27.4 V and a maximum Zener impedance of 45 Ohms. The forward voltage is specified as 1.2 V at a forward current of 200 mA.

Feature Summary

• Provides stable voltage regulation using a single Zener configuration in a compact MELF package.
• Capable of operating reliably across an extended industrial temperature range up to 175°C.
• Features low reverse leakage current for efficient performance in high-impedance circuits.

Applications

• Voltage reference circuits requiring precise regulation.
• Overvoltage protection stages in electronic systems.
• Clamping applications in signal processing paths.

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or certified suppliers. Confirm that the received parts match the specific DO-213AB package and marking codes. Ensure storage conditions comply with manufacturer guidelines to maintain reliability. Check for any recent Product Change Notifications regarding assembly sites or labeling updates before integration into production.

Selection Notes

Select this component when a surface-mount Zener diode with a 33 V breakdown voltage is required. The DO-213AB package offers a smaller footprint compared to axial leads while maintaining 1 W power handling. Consider the ±5% tolerance and 45 Ohm impedance specifications against circuit requirements. Verify compatibility with automated pick-and-place equipment due to the MELF form factor.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes produced by Microchip Technology. The 'A' suffix typically denotes a 5% voltage tolerance, while 'UR/TR' indicates the reel packaging format for surface-mount technology. It serves as a semiconductor solution for voltage regulation tasks where space constraints necessitate the use of glass passivated MELF packages.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the 1N4752AUR/TR from the same manufacturer. Other compatible options may include GLL4752A-E3/96 from Vishay General Semiconductor, provided the package and electrical parameters align with design requirements.