1N5253B-G

Single Zener Diodes Overview

The Comchip Technology 1N5253B-G is an axial leaded glass Zener diode housed in a DO-35 package. It provides a nominal Zener voltage of 25 V with a 5% tolerance at a test current of 20 mA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range up to 175°C. Electrical characteristics include a maximum reverse leakage current of 0.1 µA, a dynamic impedance of 35 Ω, and a thermal resistance of 300 °C/W.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a glass-encapsulated DO-35 axial leaded construction.
• Features polarity indication via a cathode band on the component body.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose rectification

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required specifications exactly. Confirm RoHS compliance status for the specific batch. Ensure the manufacturer documentation aligns with the requested part number before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 25 V regulation point is required in an axial through-hole design. Consider the 500 mW power rating and 175°C junction temperature limit during thermal analysis. Verify that the 35 Ω dynamic impedance meets circuit requirements.

Single Zener Diodes Part Context

This part belongs to the 1N5221B-G through 1N5267B-G series from Comchip Technology. The series covers Zener voltages ranging from 2.4 V to 75 V. All devices share identical mechanical dimensions and maximum ratings defined by the DO-35 glass case standard.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers offering the 1N5253B designation in a DO-35 package. Verify that replacement parts match the 25 V nominal voltage, 500 mW power dissipation, and 5% tolerance specifications.

Single Zener Diodes FAQ

What is the maximum operating junction temperature?

The maximum operating junction temperature is 175°C.

How is the cathode polarity identified?

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