2N4859A

Description：JFET N-CH 30V 250PA TO18
Series：-

SKU:32c483aa6df4 Category: JFETs Brand: Central Semiconductor Corp

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Product introduction

2N4859A is listed in the Jfets range at ChipApex. The manufacturer field lists Central Semiconductor Corp. Its product description is JFET N-CH 30V 250PA TO18. Review the specifications below when checking this part for your BOM.

Jfets specifications for 2N4859A

Description：JFET N-CH 30V 250PA TO18
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk
FET Type：N-Channel
Voltage - Breakdown (V(BR)GSS)：30 V
Drain to Source Voltage (Vdss)：30 V
Current - Drain (Idss) @ Vds (Vgs=0)：50 mA @ 15 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：10 V @ 500 pA
Input Capacitance (Ciss) (Max) @ Vds：10pF @ 10V (VGS)
Resistance - RDS(On)：25 Ohms
Power - Max：360 mW
Operating Temperature：-65°C ~ 200°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-206AA, TO-18-3 Metal Can
Supplier Device Package：TO-18
Grade：-
Qualification：-

Jfets datasheet and documents for 2N4859A

2N4859A

Jfets Overview

The Central Semiconductor Corp 2N4859A is an N-channel silicon Junction Field-Effect Transistor (JFET) housed in a TO-18 metal can package. Designed for analog switching and chopper applications, it features a Drain-Source Voltage of 30 V and Power Dissipation of 360 mW at 25°C. The device exhibits a maximum Gate-Source Cutoff Voltage of 10 V and an On-Resistance of 25 Ω. It offers low input capacitance of 10 pF and fast switching characteristics with a turn-off time of 20 ns. Operating temperatures range from -65°C to +200°C.

Jfets Feature Summary

Optimized for high-speed analog switching and chopper circuit applications
Low input capacitance and fast switching speeds for signal integrity
High junction temperature rating suitable for demanding environments

Jfets Applications

Analog signal switching circuits
Chopper stabilization amplifiers
Sample-and-hold circuits

Jfets Procurement Notes

Verify the specific ordering suffix when purchasing. Add PBFREE for lead-free plating or TIN/LEAD for tin-lead plating options. Confirm the manufacturer's current terms regarding environmental compliance and screening requirements before finalizing procurement orders.

Jfets Selection Notes

Select the 2N4859A over the standard 2N4859 when lower input capacitance is required. The 2N4859A provides 10 pF Crss compared to 18 pF for the 2N4859. Ensure the application requires N-channel polarity and TO-18 through-hole mounting compatibility.

Jfets Part Context

This component belongs to the Central Semiconductor 2N4859 series of N-channel silicon JFETs. The 2N4859A variant is distinguished by reduced gate-drain capacitance, making it preferable for high-frequency switching tasks where parasitic capacitance impacts performance.

Jfets Replacement Considerations

Direct substitutes include the 2N4859, though it has higher capacitance. Other generic N-channel JFETs may fit electrically but require verification of pinout compatibility and package dimensions.

Jfets FAQ

What is the difference between the 2N4859 and 2N4859A?

The primary difference is input capacitance. The 2N4859A has a Crss of 10 pF, while the 2N4859 has 18 pF. Both share identical voltage ratings and on-resistance.