1N5255B-G

Single Zener Diodes Overview

The Comchip Technology 1N5255B-G is an axial leaded glass Zener diode with a nominal voltage of 28 V and a power dissipation rating of 0.5 W. It operates within a temperature range of -65°C to +175°C. The device features a maximum dynamic impedance of 44 Ω at a test current of 4.5 mA, with a maximum reverse leakage current of 0.1 µA. It utilizes a DO-35 package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a silicon junction protected by a glass passivated DO-35 case.
• Features low thermal resistance for efficient heat dissipation in through-hole mounting configurations.

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 manufacturer documentation to confirm compliance with RoHS standards and ensure the component matches the required electrical specifications for your design. Cross-reference datasheets from authorized distributors to validate the manufacturing source and technical parameters before procurement.

Single Zener Diodes Selection Notes

Select this component based on its 28 V nominal breakdown voltage and 0.5 W power handling capability. Ensure the operating environment stays within the specified -65°C to +175°C temperature range. Verify that the DO-35 axial lead form factor fits the intended PCB layout requirements.

Single Zener Diodes Part Context

This component belongs to the 1N5221B-G through 1N5267B-G series of axial leaded glass Zener diodes manufactured by Comchip Technology. The series covers a wide voltage range from 2.4 V to 75 V, all sharing the same 0.5 W power dissipation rating and DO-35 package style.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N5255B variants or equivalent 28 V Zener diodes in the DO-35 package, provided they meet the 0.5 W power and 44 Ω impedance specifications.

Single Zener Diodes FAQ

What is the maximum operating temperature for the 1N5255B-G?

The maximum junction temperature is 175°C, and the storage temperature range extends up to +175°C.

How is polarity indicated on the 1N5255B-G?

Polarity is indicated by a cathode band marked on the glass body of the diode.