1N5242B_T50R

Single Zener Diodes Overview

The onsemi 1N5242B_T50R is a single silicon Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW at 25°C ambient temperature. It utilizes the DO-35 axial leaded package, suitable for through-hole mounting. Key electrical characteristics include a maximum dynamic impedance of 30 Ohms at the test current and a forward voltage drop of 1.1 V at 200 mA. The component supports a maximum operating junction temperature of 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in the 12 V range with tight manufacturing tolerance
• Utilizes glass passivated junction construction for reliable performance
• Designed for high thermal stability with an elevated maximum operating temperature rating

Single Zener Diodes Applications

• Voltage reference circuits requiring precise 12 V levels
• Overvoltage protection stages in low-power electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix T50R against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the order matches the exact part number variant to guarantee compliance with the stated electrical parameters and RoHS directives. Cross-reference the datasheet revision date to validate current manufacturing status and availability constraints.

Single Zener Diodes Selection Notes

Select this component when a standard 12 V Zener voltage is required with moderate precision. The DO-35 package offers a compact solution for through-hole designs where space is limited but axial leads are preferred. Consider the 500 mW power rating to ensure adequate thermal headroom in the final application environment without requiring additional heat sinking.

Single Zener Diodes Part Context

This component belongs to the widely recognized 1N52xx series of Zener diodes, which are industry-standard parts used across various consumer and industrial electronics. The 1N5242B designation specifically identifies the 12 V variant within this family. Manufactured by onsemi, it adheres to established JEDEC mechanical outlines for the DO-35 package, ensuring compatibility with existing PCB footprints and automated assembly processes.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the Central Semiconductor 1N759A and the Vishay 1N5242B. Verify that alternative sources maintain the same 12 V nominal voltage, ±5% tolerance, and DO-35 package dimensions to ensure direct pin-to-pin replacement without circuit modification.