1N3998

Single Zener Diodes Overview

The Microchip Technology 1N3998 is a 10 W silicon unidirectional Zener voltage regulator diode housed in the DO-203AA (DO-4) stud-mount package. It features a nominal Zener voltage of 6.2 V with a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and exhibits a maximum dynamic impedance (Zzt) of 1.1 Ohms at the test current. Reverse leakage current is specified as 10 µA at 2 V, while the forward voltage drop is 1.5 V at 2 A.

Single Zener Diodes Feature Summary

• High power dissipation capability of 10 W for robust voltage regulation
• Stud-mount construction enabling direct thermal attachment to heatsinks
• Wide operating temperature range suitable for harsh environments

Single Zener Diodes Applications

• High-power voltage reference circuits
• Industrial power supply regulation
• Military and aerospace electronic systems

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or official channels. Confirm that the received unit matches the specific part number and package type. Check for compliance with relevant environmental standards if required by the application. Ensure proper handling procedures are followed due to the stud-mount configuration.

Single Zener Diodes Selection Notes

Select this component when high power handling and thermal stability are critical. The stud-mount design facilitates efficient heat transfer to external cooling structures. Consider the ±5% voltage tolerance and low dynamic impedance for precision regulation requirements. Evaluate the wide temperature range suitability for extreme operational conditions.

Single Zener Diodes Part Context

This component belongs to the standard Zener diode family manufactured by Microchip Technology. It utilizes silicon technology for reliable voltage regulation. The DO-4 package provides mechanical stability and thermal performance. It serves as a fundamental discrete semiconductor device for power electronics applications.

Single Zener Diodes Replacement Considerations

Consult official Microchip Technology documentation for verified substitute part numbers. Ensure any replacement maintains equivalent power ratings, voltage specifications, and package compatibility.