1N5915CP/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5915CP/TR8 is a single glass-encapsulated Zener diode with a nominal voltage of 3.9 V and a tolerance of ±2%. It operates in the DO-204AL (DO-41) axial leaded package, providing a maximum steady-state power dissipation of 1.5 W at a lead temperature of 85 °C or lower. The device features a maximum dynamic impedance of 7.5 Ohms and a reverse leakage current of 25 µA at 1 V. It supports an operating junction and storage temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless hard glass construction with tungsten slugs for enhanced reliability.
• Metallurgically enhanced internal contact design providing lower thermal resistance.
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.
• Inherently radiation hard as described in Microsemi MicroNote 050.

Single Zener Diodes Applications

• Voltage regulation over a broad range of operating currents and temperatures.
• High-reliability applications requiring military equivalent screening levels.
• Harsh environments benefiting from hermetic sealing and radiation hardness.

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official documentation, as ordering codes dictate exact tolerances, packaging, and compliance status. Confirm that the TR suffix indicates tape and reel packaging per EIA-296 standards. Ensure compatibility with required military screening levels if high reliability is necessary for the intended application.

Single Zener Diodes Selection Notes

Select this component when a precise 3.9 V reference with tight ±2% tolerance is required in an axial leaded format. The glass encapsulation offers superior thermal performance compared to plastic equivalents. Consider the 1.5 W power rating and the specified thermal resistance values when designing heat dissipation paths on the printed circuit board.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N5913B through 1N5956B series of 1.5-watt Zener diodes manufactured by Microsemi Corporation. The series provides voltage regulation across a wide spectrum from 3.3 V to 200 V. The 'G' suffix denotes the glass casing variant, which is distinct from the optional plastic body constructions available within the same numbering system.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5915 variants meeting the 3.9 V, ±2% tolerance, and DO-41 package specifications. Verify that any substitute maintains the required hermetic seal and thermal characteristics if operating in extreme environments.