CD5251B

Single Zener Diodes Overview

The CD5251B is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 22 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates within an extended temperature range from -65°C to +175°C. Packaged as a die in Tape & Reel format, it offers low reverse leakage current and stable regulation characteristics suitable for precision voltage reference circuits.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a 22 V nominal Zener potential
• Capable of handling up to 500 mW power dissipation
• Engineered for operation across extreme temperatures from -65°C to +175°C
• Supplied as a bare die for flexible integration into custom packages

Single Zener Diodes Applications

• Precision voltage reference circuits
• Over-voltage protection systems
• Voltage clamping applications

Single Zener Diodes Procurement Notes

Verify the specific die configuration and tape-and-reel specifications required for your assembly process. Confirm that the receiving facility has appropriate equipment for handling bare dies, including pick-and-place or wire-bonding capabilities. Ensure that the thermal management design accounts for the 500 mW power rating under worst-case operating conditions to maintain reliability within the specified temperature range.

Single Zener Diodes Selection Notes

Select this component when a compact, high-temperature Zener solution is needed without the constraints of standard discrete packages. The bare die format allows for customized packaging solutions tailored to specific space or performance requirements. Consider the 22 V breakdown voltage and 5% tolerance against circuit requirements. Evaluate the thermal resistance of the final package design to ensure safe operation at the maximum rated power dissipation.

Single Zener Diodes Part Context

This part belongs to Microchip's portfolio of discrete semiconductor devices, specifically focusing on voltage regulation components. The CD series represents Zener diodes optimized for various mounting styles, including surface-mount and die formats. This specific model targets applications requiring robust performance in harsh environments due to its wide operating temperature range.

Single Zener Diodes Replacement Considerations

Consult official Microchip documentation for direct cross-reference recommendations. Verify compatibility regarding Zener voltage, power rating, and thermal characteristics before substituting with alternative manufacturers' parts.