2N4856 PBFREE

Jfets Overview

The 2N4856 PBFREE is an N-channel silicon Junction Field-Effect Transistor (JFET) manufactured by Central Semiconductor Corp. It is designed for general-purpose switching and amplification applications. The device features a maximum drain-source voltage of 40V and a gate-source voltage rating of 40V. It supports a continuous drain current of 50mA with a power dissipation capacity of 360mW. The component utilizes a bulk packaging format and operates within a standard temperature range typical for silicon discrete semiconductors.

Jfets Feature Summary

• N-channel silicon construction for reliable field-effect operation
• Designed for low-noise amplification and analog switching tasks
• RoHS compliant manufacturing process

Jfets Applications

• Low-noise audio pre-amplifier stages
• Analog signal switching circuits
• Voltage-controlled resistor applications

Jfets Procurement Notes

Verify the specific datasheet revision and electrical parameter tolerances directly from Central Semiconductor Corp before integration. Confirm that the bulk packaging aligns with your assembly requirements. Ensure compatibility with your design's thermal management strategy given the 360mW dissipation limit. Cross-reference pinouts with equivalent industry standards if substituting existing designs.

Jfets Selection Notes

Select this component when an N-channel JFET with moderate voltage ratings and low current capability is required. Compare its transconductance and pinch-off voltage specifications against circuit requirements to ensure proper biasing. Consider the TO-92 or similar through-hole package availability if manual assembly is necessary. Evaluate thermal constraints in high-density layouts due to the limited power dissipation rating.

Jfets Part Context

This part belongs to the 2N485x series of N-channel JFETs produced by Central Semiconductor. It shares functional similarities with other members like the 2N4857A, often differing in gain groupings or specific breakdown limits. The series targets general-purpose discrete semiconductor needs, offering a cost-effective solution for basic analog front-end designs requiring depletion-mode operation.

Jfets Replacement Considerations

Direct substitutes include the 2N4857A and 2N4858 from Central Semiconductor, which share the same N-channel JFET topology. Generic equivalents such as the 2N5457 or J112 may be considered if pinout and electrical parameters match the specific application requirements.