1N5251B-G

Single Zener Diodes Overview

The Comchip Technology 1N5251B-G is an axial-leaded glass Zener diode with a nominal voltage of 22 V and a maximum power dissipation of 500 mW. It operates within a junction temperature range of -65°C to +175°C and features a DO-35 package. The device exhibits a test current of 5.6 mA, a maximum dynamic impedance of 29 Ω at the test current, and a maximum reverse leakage current of 0.1 µA at 30 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in a metallurgically bonded glass axial leaded configuration.
• Features polarity indication via a cathode band on the component body.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify the specific part number against official datasheets to confirm compliance with RoHS standards and ensure the correct voltage tolerance suffix is selected for the intended application requirements.

Single Zener Diodes Selection Notes

Select this component based on the required 22 V stabilization level and the 500 mW power dissipation limit. Ensure the operating environment stays within the specified thermal limits and that the DO-35 through-hole package fits the design constraints.

Single Zener Diodes Part Context

This component belongs to the 1N5221B-G through 1N5267B-G series of 0.5 W silicon Zener diodes manufactured by Comchip Technology. The series covers a wide voltage range from 2.4 V to 75 V, offering standard tolerances in a robust glass axial package suitable for general-purpose regulation tasks.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5251 equivalents, ensuring identical 22 V rating, 500 mW power handling, and DO-35 package dimensions are maintained for direct substitution.