1N5242B-TR

Single Zener Diodes Overview

The Vishay 1N5242B-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial package. It provides a nominal Zener voltage of 12 V with a standard tolerance of ±5%. The device operates at a test current of 20 mA and dissipates up to 500 mW. Key electrical parameters include a maximum dynamic resistance of 30 Ω, a reverse leakage current of 1 µA at 9.1 V, and a typical temperature coefficient of 0.077 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a standard ±5% Zener voltage tolerance designation
• Designed for high thermal stability with a junction temperature rating of 175 °C

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the -TR suffix to confirm taped reel packaging. Ensure the B suffix is present to match the required ±5% voltage tolerance specification. Confirm compliance with RoHS3 standards and check material categorization documentation for specific environmental requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 12 V reference point is required within a through-hole design. The 500 mW power dissipation capability supports moderate load currents. Verify that the operating environment stays within the specified thermal limits and that the ±5% tolerance aligns with the circuit's precision requirements.

Single Zener Diodes Part Context

This part belongs to the Vishay 1N5221 to 1N5267 series of small signal Zener diodes. The series covers a wide range of voltages from 2.4 V to 75 V. The 1N5242 variant specifically targets the 12 V segment of this lineup, offering standardized performance characteristics common across the family.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.