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2N4858JTX02 is listed in the Jfets range at ChipApex. The manufacturer field lists Vishay Siliconix. Its product description is JFET N-CH N-CH TO206AA. Review the specifications below when checking this part for your BOM.
The 2N4858JTX02 is a single N-channel Junction Field-Effect Transistor (JFET) manufactured by Vishay Siliconix. It utilizes silicon technology and is housed in the TO-206AA package, designed for surface mount or through-hole installation. The device belongs to the JAN/JANTX series, indicating compliance with military-grade reliability standards. Key electrical characteristics include a gate-source breakdown voltage of -40 V and an off-state gate-source voltage range of -0.8 V to -4 V. The maximum drain-source on-resistance is specified at 60 W.
Verify component authenticity against official Vishay datasheets due to the discontinued status and military grade nature. Confirm that the JTX suffix corresponds to the specific reliability tier required for your design. Check for obsolescence notices as availability may be limited to existing stock or last-time buys. Ensure handling procedures meet ESD requirements for sensitive semiconductor devices.
Select this component when designing circuits that demand high reliability and strict parameter control under harsh conditions. The -0.8 V to -4 V Vgs(off) range offers flexibility for biasing applications. Compare the 60 W rDS(on) specification against thermal management capabilities in the final assembly. Consider the TO-206AA footprint compatibility during PCB layout phase to ensure mechanical fit.
This part is part of the 2N4856 through 2N4861 series of N-channel JFETs from Vishay Siliconix. These transistors are engineered for demanding environments where standard commercial parts may fail. The series provides various pinch-off voltage options to suit different circuit gain and impedance requirements while maintaining consistent breakdown voltage characteristics across the family.
Public confirmed substitute part numbers: 2N4858JAN, 2N4858JANTX.
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