2N5247_J35Z

Overview

The onsemi 2N5247_J35Z is a silicon planar Zener diode designed for voltage regulation and reference applications. It utilizes the DO-35 glass axial-lead package, offering a nominal Zener voltage of 17 V with a 5% tolerance. The device supports a maximum power dissipation of 500 mW at ambient temperature. Key electrical characteristics include a maximum reverse leakage current of 100 nA and a Zener impedance of 19 Ohms at a test current of 7.4 mA. It operates within a junction temperature range up to 200°C and features a voltage temperature coefficient of 0.084 %/°C.

Feature Summary

• Planar die construction ensures stable performance and reliability under thermal stress.
• Glass axial-lead encapsulation provides environmental protection and mechanical durability.
• Low leakage current characteristics support precision voltage reference requirements.

Applications

• Voltage regulation in low-power electronic circuits
• Precision voltage reference sources
• Overvoltage protection stages

Procurement Notes

Verify the specific manufacturer source, as the underscore suffix indicates legacy Fairchild Semiconductor part numbering now managed by onsemi. Confirm RoHS compliance status through official datasheets, as historical batches may vary. Ensure the DO-35 package dimensions match the target PCB footprint before integration into production designs.

Selection Notes

Select this component when a 17 V regulated supply is required with moderate precision. The 500 mW power rating suits low-current applications. Verify that the 19 Ohm dynamic impedance meets the noise and stability requirements of the specific circuit design compared to higher-power alternatives.

Part Context

This part belongs to the standard 1N52xx series of Zener diodes, widely used for general-purpose voltage regulation. The J35Z suffix typically denotes specific binning or packaging variations from the original Fairchild manufacturing lineage, now integrated into onsemi's portfolio following their acquisition.

Replacement Considerations

Direct equivalents include the 1N5247B from other manufacturers such as Microsemi or Panjit. Verify pinout compatibility and ensure the replacement maintains the 17 V nominal voltage and 500 mW power dissipation rating for direct substitution in existing designs.