1N3995RA

Single Zener Diodes Overview

The Microchip Technology 1N3995RA is a 10-watt Zener diode with a nominal voltage of 4.7V and a tolerance of 5%. It features an internal solder bond construction and is hermetically sealed in a stud-mount package. The device operates within a temperature range of -65°C to +175°C, with a maximum reverse leakage current of 50µA and a Zener impedance of 1.2 Ohms at a test current of 530mA.

Single Zener Diodes Feature Summary

• Hermetically sealed welded construction for environmental protection
• Internal solder bond design for mechanical stability
• Military qualification grades available including JAN, JANTX, and JANTXV

Single Zener Diodes Applications

• High-reliability military voltage regulation circuits
• Space-qualified power supply reference standards
• Harsh environment industrial control systems

Single Zener Diodes Procurement Notes

Verify the specific military qualification grade (JAN, JANTX, or JANTXV) required for your application, as performance specifications vary by grade. Confirm that the stud-mount package style matches your thermal management and mounting infrastructure. Ensure compliance with MIL-PRF-19500/124 standards if military-grade reliability is mandated for the system design.

Single Zener Diodes Selection Notes

Select this component when high power dissipation of 10 watts is required alongside strict environmental sealing. The stud-mount configuration facilitates direct heat sinking to chassis structures. Consider the specific voltage tolerance and impedance requirements against the available military qualification levels to ensure the device meets the circuit's precision and reliability targets.

Single Zener Diodes Part Context

This part belongs to the 1N3993A through 1N3998A series of 10W Zener diodes manufactured by Microchip. These devices are JEDEC registered and designed for applications requiring robust voltage regulation under extreme conditions. The series offers various voltage values between 3.9V and 200V, with the 1N3995RA specifically providing a 4.7V regulation point.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 10W Zener diodes in stud-mount packages with 4.7V nominal voltage and similar thermal characteristics. Verify that any replacement maintains the hermetic seal and internal solder bond construction if used in critical military or aerospace environments.