1N5309 BK TIN/LEAD

Overview

The 1N5309 BK TIN/LEAD is a Zener diode manufactured by Central Semiconductor Corp, designed for through-hole mounting in DO-201-2 packages. It features a nominal Zener voltage of 75 V with a 5% tolerance and a power dissipation rating of 5 W at +50°C. The device exhibits a maximum reverse leakage current of 5 µA at its rated voltage and a Zener impedance of 8 Ω when tested at 17 mA. Operating within a junction temperature range of -65°C to +200°C, it utilizes tin/lead terminations and is supplied in bulk packaging.

Feature Summary

• High-power 5 W dissipation capability in a robust glass axial leaded package
• Extended thermal operating range supporting high-temperature environments up to +200°C
• Low leakage current characteristics ensuring stable voltage regulation performance

Applications

• Voltage reference circuits requiring stable 75 V levels
• Overvoltage protection stages in industrial power supplies
• Clamping applications in high-voltage signal conditioning systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm termination plating composition and compliance status. Ensure the procurement channel provides valid traceability records for the Central Semiconductor part number. Confirm that the received components match the specified DO-201-2 package dimensions and electrical tolerances before integration into production assemblies.

Selection Notes

Select this component when a 75 V Zener voltage with 5 W power handling is required in a through-hole configuration. Compare the 8 Ω impedance and 5 µA leakage specifications against circuit requirements to ensure adequate regulation precision. Verify that the operating environment remains within the -65°C to +200°C junction temperature limits for reliable long-term performance.

Part Context

This component belongs to the standard Zener diode family produced by Central Semiconductor Corp, focusing on discrete semiconductor solutions. The 1N5309 designation aligns with industry-standard voltage ratings, while the manufacturer-specific suffixes define physical attributes like packaging and termination style. Central Semiconductor specializes in providing both standard and custom discrete devices for various electronic applications.

Replacement Considerations

Cross-reference with other manufacturers offering 75 V, 5 W Zener diodes in DO-201 packages. Verify compatibility of pinout, thermal resistance, and electrical parameters such as impedance and leakage current before substitution.