1N4711UR-1/TR

Overview

The Microchip Technology 1N4711UR-1/TR is a 0.5 W surface mount Zener diode in the DO-213AA package, offering a nominal voltage of 24 V with a standard tolerance of ±5%. It operates within a junction temperature range of -65 °C to +175 °C and features a low test current of 50 µA. The device includes an internal metallurgical bond for high reliability and hermetic sealing. The TR suffix indicates tape and reel packaging compliant with EIA-481-1-B.

Feature Summary

• Hermetically sealed glass DO-213AA MELF-style surface mount package
• Internal metallurgical bond between metal slugs and silicon die
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring minimal capacitance
• Radiation-hardened applications

Procurement Notes

Verify that the specific order matches the required JEDEC type number and tolerance level. Confirm whether RoHS compliance is necessary, as it applies only to commercial grade devices. Ensure the TR suffix is included if tape and reel packaging is required for automated assembly processes.

Selection Notes

Select this component when a 24 V Zener regulator is needed in a compact surface mount form factor. Consider the 50 µA test current for low-power biasing requirements. Evaluate the thermal resistance values against the expected power dissipation on the target FR4 printed circuit board layout.

Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W glass surface mount Zener voltage regulators. These devices serve as the surface mount equivalents of the JEDEC registered axial-leaded 1N4678 through 1N4717 series, providing similar electrical characteristics in a smaller footprint.

Replacement Considerations

Direct replacements include other 1N4711 variants such as the 1N4711 or 1N4711A, provided the package style and mounting requirements are compatible.