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The MV2N4859UB is a silicon N-channel Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It utilizes the TO-18-3 metal can package for through-hole mounting. The device is designed for high-reliability applications, featuring a round-end construction typical of military-grade components. It operates within a standard temperature range and is classified under the JFET product category.
Verify the specific suffix 'MV' indicates the required military or space-grade qualification level against project specifications. Confirm that the TO-18-3 package dimensions match the PCB footprint requirements. Ensure compliance with relevant environmental directives if applicable to the final assembly.
Select this component when a ruggedized, hermetically sealed JFET is required for harsh environments. The TO-18-3 package provides superior mechanical stability compared to plastic packages. Consider thermal management capabilities inherent to the metal case design for power dissipation needs.
This part belongs to the 2N4859 series of JFETs produced by Microchip Technology. The 'MV' prefix typically denotes a specific reliability tier or screening standard distinct from commercial variants. It serves as a direct replacement for legacy military specification transistors in existing designs.
Check datasheets for compatible parts such as the 2N4859UB for commercial equivalents. Verify pinout compatibility and electrical parameter overlaps before substituting.