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Product Detailed Parameters
- Description：JFET N-CH
- Series：*
- Mfr：Microchip Technology
- Package：Bulk
- FET Type：-
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：-
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：-
- Input Capacitance (Ciss) (Max) @ Vds：-
- Resistance - RDS(On)：-
- Power - Max：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The MV2N4858UB is a Silicon N-channel Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It utilizes a TO-18-3 metal can package designed for through-hole mounting. The device operates with a maximum drain-source voltage of 40V and supports a continuous drain current of 50mA. Thermal management is defined by a total power dissipation rating of 360mW. These specifications define the electrical boundaries for circuit integration.
Feature Summary
- Utilizes Silicon technology for stable semiconductor performance
- Features a round-end JFET structure within a hermetic metal can
- Designed for reliable operation in through-hole assembly processes
Applications
- Analog signal amplification circuits
- Low-noise preamplifier stages
- Constant current source implementations
Procurement Notes
Verify the specific suffix 'UB' against the official Microchip datasheet to confirm pinout and electrical tolerances match design requirements. Ensure the TO-18-3 package dimensions align with PCB layout constraints. Confirm RoHS status as indicated in the manufacturer documentation prior to final procurement approval.
Selection Notes
Select this component when a hermetically sealed JFET is required for high-reliability analog applications. The TO-18-3 package offers superior environmental protection compared to plastic packages. Verify that the 40V breakdown voltage and 50mA current limits satisfy the specific circuit operating conditions without exceeding thermal dissipation ratings.
Part Context
This part belongs to the Microchip JFET family, specifically engineered for discrete transistor applications. It shares functional similarities with other N-channel JFETs but is distinguished by its specific voltage ratings and metal can packaging. The product line targets industries requiring robust semiconductor components for critical electronic systems.
Replacement Considerations
Consult the official Microchip datasheet for verified substitute part numbers. Cross-reference electrical parameters such as Vgs(off) and Idss to ensure compatibility. Do not assume interchangeability with generic JFETs without verifying pinout and thermal characteristics.
