UZ7709R

Single Zener Diodes Overview

The UZ7709R is a high-power Zener diode manufactured by Microchip Technology, designed for robust voltage regulation in demanding environments. It features a nominal Zener voltage of 9.1 V with a tight tolerance of ±5%. The device supports a maximum power dissipation of 10 W and utilizes an axial leaded package suitable for stud mounting. Key electrical characteristics include a maximum reverse leakage current of 0.15 mA and a Zener impedance of 5 Ohms at a test current of 28 mA. It operates within a temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• High power handling capability of 10 W for stable regulation under heavy loads
• Wide operating temperature range extending up to +175°C for harsh environment reliability
• Axial leaded construction enabling secure stud mounting configurations

Single Zener Diodes Applications

• Industrial power supply voltage regulation
• Automotive electronics requiring high thermal stability
• Overvoltage protection circuits in critical systems

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements when ordering, as they may denote packaging or testing variations without altering the core electrical function. Confirm that the axial package style aligns with your mechanical assembly constraints. Ensure compatibility with stud mounting hardware if utilized in high-power applications. Cross-reference the datasheet for precise thermal resistance values to validate heat sink requirements for your specific design scenario.

Single Zener Diodes Selection Notes

Select this component when high power dissipation and wide temperature operation are required. The 9.1 V nominal voltage suits specific reference needs. Consider the axial package form factor for through-hole or stud-mount implementations. Evaluate the ±5% tolerance against circuit precision requirements. Compare thermal performance metrics against alternative packages if space constraints exist.

Single Zener Diodes Part Context

This part belongs to Microchip's high-power Zener diode portfolio, often associated with legacy Micrel or Actel semiconductor lines acquired by Microchip. These devices are engineered for durability in industrial and automotive sectors. The UZ series typically denotes axial-leaded, high-wattage regulators designed to replace older discrete solutions with more reliable, standardized components.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 10 W power rating, 9.1 V Zener voltage, and axial/stud-mount package. Verify equivalent thermal characteristics and tolerance levels. Generic replacements may lack the specified high-temperature reliability.