2N4856JAN02

Jfets Overview

The 2N4856JAN02 is an N-channel Junction Field-Effect Transistor (JFET) manufactured by Vishay Siliconix. It belongs to the JANTXV series, indicating radiation-hardened and high-reliability specifications suitable for harsh environments. The device utilizes silicon technology and features a BCY package configuration with three leads. Key electrical characteristics include a maximum power dissipation of 0.36 W and a maximum operating temperature of 200 °C. As a discrete semiconductor component, it is designed for applications requiring robust performance under extreme thermal and radiative conditions.

Jfets Feature Summary

• Radiation-hardened construction for reliable operation in space and high-radiation environments
• High-temperature capability with a maximum operating junction temperature of 200 °C
• N-channel silicon JFET technology providing stable amplification and switching functions

Jfets Applications

• Spacecraft electronic systems requiring radiation tolerance
• Military avionics and defense instrumentation
• High-temperature industrial control circuits

Jfets Procurement Notes

Verify the specific suffix '02' against official Vishay documentation to confirm exact packaging or lot-specific variations, as suffixes can denote distinct handling or reel configurations. Confirm current availability status, as military-grade components often have limited production runs. Ensure compliance with relevant export control regulations when sourcing radiation-hardened semiconductors from authorized distributors.

Jfets Selection Notes

Select this component when designing circuits for environments with significant ionizing radiation exposure where standard commercial parts would fail. The 200 °C operating limit allows for use in high-thermal-stress applications without active cooling. Compare against other JANTXV series variants like the 2N4857 or 2N4858 if different transconductance or pinch-off voltage ranges are required for the specific circuit topology.

Jfets Part Context

This part is part of the broader 2N4856/4857/4858 family of N-channel JFETs produced by Vishay Siliconix. These devices are specifically engineered for aerospace and defense markets. The 'JAN' designation typically refers to Military Standard qualification, while 'TXV' indicates the highest reliability grade within that line. This family serves as a critical component for analog signal processing in satellite and missile guidance systems.

Jfets Replacement Considerations

Publicly confirmed substitute part numbers for the 2N4856JAN02 were not found in the provided source material. Engineers should consult the official Vishay datasheet for the 2N4856JAN/JANTX/JANTXV series to identify equivalent radiation-hardened alternatives or cross-reference with other qualified military suppliers.