CD5537B

Single Zener Diodes Overview

The CD5537B is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 17 V with a power dissipation rating of 500 mW. The device is supplied in a die package format and operates within an extended temperature range from -65°C to +175°C. Key electrical specifications include a maximum reverse leakage current of 10 nA, a Zener impedance of 100 Ohms, and a test current of 1 mA. The forward voltage is specified at 1.1 V @ 200 mA.

Single Zener Diodes Feature Summary

• Extended high-temperature operation capability up to 175°C
• Surface-mount die configuration for compact integration
• Low reverse leakage current characteristics

Single Zener Diodes Applications

• Voltage regulation in high-temperature environments
• Reference voltage sources in industrial electronics
• Protection circuits requiring stable breakdown voltage

Single Zener Diodes Procurement Notes

Verify the specific suffix or revision code when ordering, as Microchip may offer variants with different tolerance levels or testing standards. Confirm that the die form factor aligns with your assembly process capabilities. Ensure compliance with relevant environmental directives if required for your final product certification. Cross-reference the datasheet version to confirm parameter updates.

Single Zener Diodes Selection Notes

Select this component when a robust Zener reference is needed for high-temperature applications exceeding standard commercial limits. The die package requires specialized mounting techniques compared to standard leaded packages. Consider the 500 mW power rating for thermal management in dense layouts. Verify that the 17 V breakdown voltage matches the circuit requirements precisely.

Single Zener Diodes Part Context

This part belongs to Microchip's portfolio of single Zener diodes, which are utilized for voltage regulation and protection. The CD series typically offers high reliability and performance suitable for demanding environments. These components serve as fundamental building blocks in analog and mixed-signal circuits where precise voltage referencing is critical.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 17 V Zener voltage, 500 mW power rating, and die package type. Verify that alternative suppliers offer equivalent temperature ranges and leakage specifications. Ensure compatibility with existing PCB layout constraints due to the die form factor.