1N5242B-TP

Single Zener Diodes Overview

The MCC 1N5242B-TP is a single Zener diode housed in a DO-35 glass axial leaded package. It provides a nominal Zener voltage of 12 V with a ±5% tolerance at a test current of 20 mA. The device supports a DC power dissipation of 500 mW and operates within a temperature range of -55°C to +150°C. Key electrical parameters include a maximum reverse leakage current of 1 µA at 9.1 V, a Zener impedance of 30 Ohms at the test current, and a positive voltage temperature coefficient of +0.077 %/°C.

Single Zener Diodes Feature Summary

• Utilizes a glass encapsulated body for thermal stability and environmental protection
• Features high-temperature soldering capability up to 260°C for ten seconds at terminals
• Includes cathode band marking for correct polarity identification during installation

Single Zener Diodes Applications

• Voltage regulation in low-power electronic circuits
• Reference voltage generation for analog signal processing
• Overvoltage protection for sensitive semiconductor components

Single Zener Diodes Procurement Notes

Verify component authenticity by purchasing exclusively from Micro Commercial Components or their authorized distributors to ensure traceability and quality standards. Confirm that the specific ordering suffix matches the required packaging format, as variations exist between tape and reel, ammo pack, and bulk carton configurations. Check for any product change notifications regarding manufacturing sites or material specifications before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when a stable 12 V reference is required in through-hole designs with limited power budgets. The DO-35 package suits applications where standard axial mounting is preferred over surface mount alternatives. Ensure the circuit design accounts for the specified power derating curve above 50°C to maintain reliable operation under continuous load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5267B series of 500 mW Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 2.4 V to 75 V, offering standardized performance characteristics across various breakdown voltages. The 'B' suffix specifically denotes a 5% tolerance on the nominal Zener voltage, distinguishing it from tighter tolerance variants.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 12 V Zener diodes in the DO-35 package with 500 mW power ratings. Verify that substitute parts match the 30 Ohm impedance limit and 1 µA leakage current specifications to ensure circuit compatibility without redesign.