1N5279B TR

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5279B TR is a silicon Zener diode designed for high voltage regulation applications. It features a nominal Zener voltage of 180 V with a ±5% tolerance, tested at a current of 0.68 mA. The device operates within a power dissipation limit of 500 mW and supports junction temperatures from -65°C to +200°C. Electrical characteristics include a maximum Zener impedance of 2200 Ω at the test current and a reverse leakage current of 0.1 µA at 137 V. The component utilizes a DO-35A axial leaded package.

Single Zener Diodes Feature Summary

• High voltage regulation capability suitable for industrial and commercial environments
• Robust thermal performance with an extended operating temperature range up to 200°C
• Standardized marking codes for identification and traceability

Single Zener Diodes Applications

• Industrial circuit voltage regulation
• Commercial electronic equipment protection
• High voltage reference circuits

Single Zener Diodes Procurement Notes

Verify End of Life status before procurement planning. Confirm if existing inventory remains available or if alternative sourcing strategies are required. Ensure compatibility with replacement components if the original part is unavailable. Check specific ordering suffixes for plating options such as PBFREE or TIN/LEAD when placing orders.

Single Zener Diodes Selection Notes

Select this component for designs requiring stable high voltage regulation in a compact axial package. Consider the high Zener impedance value when designing precision reference circuits. Verify that the 500 mW power rating aligns with the expected thermal environment and duty cycle of the application.

Single Zener Diodes Part Context

This component belongs to the 1N5279B through 1N5281B series of silicon Zener diodes manufactured by Central Semiconductor Corp. These devices share similar electrical profiles but differ in nominal voltage ratings, covering a range from 180 V to 200 V. They are housed in the standard DO-35A case.

Single Zener Diodes Replacement Considerations

No direct replacement part numbers are listed in the official documentation. The product has been transitioned to End of Life status with no specified substitutes provided by the manufacturer.