1N4734UR

Overview

The Microchip Technology 1N4734UR is a Zener diode voltage regulator designed for surface-mount applications. It features a nominal Zener voltage of 5.6 V and a power dissipation rating of 1 W. The device utilizes a DO-213AB (MELF, LL41) glass encapsulation package. Electrical specifications include a maximum reverse leakage current of 10 µA and a voltage tolerance of ±10%. This component serves as a reliable voltage reference or regulation element in compact electronic circuits requiring stable DC voltage levels.

Feature Summary

• Provides stable voltage regulation at a nominal 5.6 V level
• Utilizes a surface-mount DO-213AB MELF glass package for compact integration
• Rated for 1 W power dissipation to handle standard load requirements
• Ensures low leakage with a maximum reverse current of 10 µA

Applications

• Voltage regulation in compact electronic circuits
• Reference voltage sources for analog signal processing
• Overvoltage protection in low-power systems

Procurement Notes

Verify the specific suffix UR against the official Microchip Technology datasheet to confirm the exact package type and electrical tolerances. Ensure compatibility with surface-mount assembly processes. Confirm RoHS compliance status through the manufacturer's product compliance documentation before procurement. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity.

Selection Notes

Select this component when a surface-mount Zener diode with a 5.6 V breakdown voltage is required. The 1 W power rating suits moderate current applications. The DO-213AB package facilitates automated placement. Verify that the ±10% tolerance meets the circuit's precision requirements. Consider thermal management capabilities within the final enclosure design.

Part Context

This part belongs to the 1N4734 series of Zener diodes manufactured by Microchip Technology. The series offers various packaging options including through-hole and surface-mount variants. The UR designation specifically indicates the surface-mount MELF configuration. These diodes are widely used in general-purpose electronics for voltage clamping and regulation tasks.

Replacement Considerations

Compatible substitutes include the 1N4734AG for through-hole applications and the 1N4734A,133 from Nexperia. Ensure replacement parts match the 5.6 V Zener voltage, 1 W power rating, and compatible package dimensions for direct board integration.