1N5251B

Single Zener Diodes Overview

The Fairchild Semiconductor 1N5251B is a single silicon Zener diode housed in the DO-35 axial leaded package. It features a nominal Zener voltage of 22 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. Key electrical characteristics include a maximum dynamic impedance of 29 Ω and a maximum reverse leakage current of 100 nA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation through Zener breakdown at 22 V
• Utilizes glass-encapsulated DO-35 axial construction for robustness
• Supports high thermal stability with a maximum junction temperature of 200°C

Single Zener Diodes Applications

• Voltage reference circuits requiring precise 22 V levels
• Overvoltage protection for sensitive electronic components
• General-purpose voltage regulation in discrete semiconductor designs

Single Zener Diodes Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm package integrity, specifically the DO-35 glass encapsulation, upon receipt. Ensure compliance with RoHS directives if required by your specific application standards. Cross-reference part numbers carefully as variations exist across different manufacturers within the same series.

Single Zener Diodes Selection Notes

Select this component when a standard 22 V Zener voltage is required in an axial leaded format. Consider the 500 mW power rating and 29 Ω impedance for circuit design constraints. Compare alternatives based on operating temperature ranges and leakage specifications to ensure compatibility with the target environment.

Single Zener Diodes Part Context

This component belongs to the 1N52xxB series of Zener diodes manufactured by Fairchild Semiconductor. These devices are widely used in general-purpose electronics for voltage clamping and regulation. The DO-35 package provides a compact solution for through-hole mounting applications.

Single Zener Diodes Replacement Considerations

Equivalent parts from other manufacturers may be considered if they match the 22 V Zener voltage, 500 mW power rating, and DO-35 package dimensions. Verify that replacement devices meet the same electrical specifications for impedance and leakage current.