1N5243

Single Zener Diodes Overview

The Microchip Technology 1N5243B is a single Zener diode housed in a DO-204AH (DO-35) axial leaded glass package. It provides a nominal Zener voltage of 13 V with a maximum power dissipation of 500 mW and a tolerance of ±5%. Key electrical characteristics include a maximum reverse leakage current of 500 nA at 9.9 V, a forward voltage of 1.5 V at 200 mA, and a maximum Zener impedance of 13 Ohms. The device operates within a junction temperature range of -65°C to 175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a 13 V Zener breakdown characteristic in a standard glass axial package.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels.

Single Zener Diodes Procurement Notes

Verify the specific suffix designation on the component body or datasheet, as variants such as 1N5243B exist with defined tolerances. Confirm RoHS compliance status, as some listings indicate non-compliance for this series. Ensure the DO-204AH package dimensions match the target PCB layout requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 13 V regulation point is required with moderate precision. The DO-35 package suits through-hole assembly processes. Evaluate the 500 mW power rating against expected thermal conditions to ensure operation remains within the specified junction temperature limits during continuous use.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener voltage regulators manufactured by Microchip Technology. The series offers a wide selection of voltages from 2.4 V to 200 V in standard 5% or 10% tolerances. These components are widely used in general-purpose electronic designs requiring reliable voltage clamping or referencing.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5243 equivalents. Verify that substitute parts maintain the same 13 V nominal voltage, 500 mW power rating, and DO-35 package footprint to ensure mechanical and electrical compatibility.