1N5242B-G

Single Zener Diodes Overview

The Comchip Technology 1N5242B-G is an axial leaded glass Zener diode housed in a DO-35 package. It provides a nominal Zener voltage of 12 V at a test current of 20 mA, with a maximum dynamic impedance of 30 Ohms and a maximum reverse leakage current of 1 uA. The device supports a power dissipation of 500 mW at 25°C and operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a glass DO-35 axial leaded case.
• 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 that the ordered part number matches the specific suffix required for your application. Confirm RoHS compliance status through official manufacturer documentation or datasheets before procurement. Ensure the supplier provides valid traceability data consistent with the original manufacturer's specifications.

Single Zener Diodes Selection Notes

Select this component when a 12 V regulation point is required in a through-hole design. Consider the 500 mW thermal limit and the negative temperature coefficient below 5.6 V versus positive above it. Verify that the DO-35 package dimensions fit the target PCB layout constraints.

Single Zener Diodes Part Context

This component belongs to the 1N5221B-G through 1N5267B-G series from Comchip Technology. The series covers a wide voltage range from 2.4 V to 75 V, all sharing the same 500 mW power rating and DO-35 glass encapsulation standard.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5242B equivalents. Verify that substitute parts maintain the 12 V nominal voltage, 500 mW power rating, and DO-35 package compatibility.

Single Zener Diodes FAQ

What is the temperature coefficient for the 1N5242B-G?

The temperature coefficient is +0.077 %/K at the test current.

How is the polarity identified on the component?

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