1N5242

Single Zener Diodes Overview

The SMC Diode Solutions 1N5242 is a silicon planar power Zener diode designed for voltage regulation and overvoltage protection. It features a nominal Zener voltage of 12 V with a standard tolerance of ±5%. The device has a maximum power dissipation rating of 0.5 W and operates within a temperature range of -65 °C to +175 °C junction temperature. It is available in various packages including DO-35 axial leaded, DO-213AA surface mount, and hermetic MLL34/MELF configurations.

Single Zener Diodes Feature Summary

• Silicon planar construction for robust performance
• Standard ±5% Zener voltage tolerance
• Capable of conducting current in both forward and reverse directions
• Designed for voltage regulation and overvoltage protection applications

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage sources

Single Zener Diodes Procurement Notes

Verify the specific package variant (DO-35, DO-213AA, or MLL34) required for your design, as the base part number applies to multiple physical forms. Confirm that the ±5% tolerance meets your circuit requirements. Ensure the selected manufacturer's datasheet specifies the exact thermal and electrical characteristics for the chosen package style before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 12 V reference is needed with moderate power handling capabilities. Consider the operating environment; high-temperature variants support up to 175 °C junction temperatures. Choose the appropriate package based on assembly method, whether through-hole (DO-35) or surface-mount (DO-213AA/MLL34). Verify hermetic sealing requirements if used in harsh environments.

Single Zener Diodes Part Context

The 1N5242 belongs to the widely recognized 1N52xx series of Zener diodes, which are industry-standard components for low-power voltage regulation. SMC Diode Solutions manufactures these devices using silicon planar technology, ensuring consistency with other major semiconductor producers like Microchip and Vishay who also offer this part number across different packaging options.

Single Zener Diodes Replacement Considerations

Direct substitutes include 1N5242B from onsemi or Vishay, and 1N5242BUR-1/TR from Microchip Technology. For hermetic applications, 1N5242CUR from Microsemi/Digitron is an alternative. Ensure replacement parts match the required package type and tolerance specifications.