PDZ11B-QX

Single Zener Diodes Overview

The PDZ11B-QX is a Zener diode manufactured by Nexperia USA Inc., designed for voltage regulation and reference applications. It features a nominal Zener voltage of 11 V with a tight tolerance of ±2%. The device is qualified to AEC-Q101 standards for automotive reliability. It operates in the SOD-323 (SC-76) surface-mount package, supporting a maximum power dissipation of 400 mW. Key electrical characteristics include a maximum reverse leakage current of 5 µA at rated voltage and a Zener impedance of 28 Ohms at a test current of 5 mA. The component supports a maximum operating junction temperature of +150°C.

Single Zener Diodes Feature Summary

• Automotive-grade qualification compliant with AEC-Q101 standards
• High precision voltage regulation with ±2% tolerance
• Low leakage current for efficient standby operation
• Compact surface-mount packaging for high-density designs

Single Zener Diodes Applications

• Voltage regulation in automotive electronic control units
• Over-voltage protection circuits
• General-purpose voltage reference generation
• Clamping applications in signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix 'QX' corresponds to the required tape-and-reel packaging configuration. Confirm that the AEC-Q101 qualification grade matches the target application's thermal and reliability requirements. Ensure the SOD-323 footprint aligns with the PCB design constraints. Check for any recent Product Change Notifications regarding assembly sites or material composition updates.

Single Zener Diodes Selection Notes

Select this component when a precise 11 V reference is required in space-constrained automotive environments. The low leakage current makes it suitable for battery-powered systems where standby consumption is critical. Compare the 400 mW power rating against expected thermal loads to ensure adequate heat dissipation without external heatsinking. Consider the 28 Ohm impedance for dynamic load regulation performance.

Single Zener Diodes Part Context

This part belongs to Nexperia’s PDZ series of Zener diodes, which offers a broad portfolio of voltages and packages. The 'Q' suffix indicates automotive qualification, while 'X' typically denotes reel packaging. This series is engineered for high-density circuit designs, providing reliable performance across a wide temperature range. It complements other Nexperia protection devices like TVS diodes for comprehensive circuit safeguarding.

Single Zener Diodes Replacement Considerations

Potential substitutes include other AEC-Q101 qualified Zener diodes from Nexperia with similar voltage and package specifications, such as the PDZ5V1B-QX or PDZ12B-QX if voltage adjustments are permissible. Verify pinout compatibility and thermal characteristics before substitution.