2N4858A

$4.79

Description：JFET N-CH 40V TO18
Series：-

SKU:91e82f9b52fa Category: JFETs Brand: Central Semiconductor Corp

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Product introduction

2N4858A is listed in the Jfets range at ChipApex. The manufacturer field lists Central Semiconductor Corp. Its product description is JFET N-CH 40V TO18. Review the specifications below when checking this part for your BOM.

Jfets specifications for 2N4858A

Description：JFET N-CH 40V TO18
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk
FET Type：N-Channel
Voltage - Breakdown (V(BR)GSS)：40 V
Drain to Source Voltage (Vdss)：-
Current - Drain (Idss) @ Vds (Vgs=0)：8 mA @ 15 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：800 mV @ 0.5 nA
Input Capacitance (Ciss) (Max) @ Vds：10pF @ 10V (VGS)
Resistance - RDS(On)：60 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 2N4858A

2N4858A

Jfets Overview

The Central Semiconductor Corp 2N4858A is an N-channel silicon JFET housed in a TO-18 metal can package. It features a drain-source voltage rating of 40 V and a power dissipation capacity of 360 mW at 25°C. The device supports an operating junction temperature range from -65°C to +200°C. Key electrical parameters include a gate-source cutoff voltage (VGS(OFF)) ranging from 0.8 V to 4.0 V, a maximum on-resistance (rDS(ON)) of 60 Ω, and a reverse gate leakage current (IGSS) of 0.25 nA at 25°C. Capacitance values for the 2N4858A variant are specified as Crss 3.5 pF and Ciss 10 pF.

Jfets Feature Summary

Designed specifically for analog switching and chopper applications
Capable of high-temperature operation with a junction temperature limit up to 200°C
Utilizes a hermetically sealed TO-18 metal case for environmental protection

Jfets Applications

Analog signal switching circuits
Chopper amplifier designs
High-temperature electronic systems

Jfets Procurement Notes

Verify the specific ordering suffix when purchasing. Add " TIN/LEAD" for tin/lead plating or " PBFREE" for lead-free plating. Confirm the manufacturer's standard terms and conditions regarding limitations and damages before finalizing orders.

Jfets Selection Notes

Select the 2N4858A over the 2N4858 based on capacitance requirements. The 2N4858A offers lower Crss (3.5 pF) and Ciss (10 pF) compared to the 2N4858. Both share identical voltage ratings and mechanical dimensions within the TO-18 package.

Jfets Part Context

This component belongs to the Central Semiconductor 2N4858 series of N-channel silicon JFETs. The series includes variants like the 2N4858 and 2N4858A, differentiated primarily by internal capacitance specifications while maintaining consistent voltage and thermal ratings.

Jfets Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility (Source, Drain, Gate) if considering alternative manufacturers.

Jfets FAQ

What is the difference between the 2N4858 and 2N4858A?

The primary difference lies in their capacitance values. The 2N4858A has a Crss of 3.5 pF and Ciss of 10 pF, whereas the 2N4858 has higher capacitance values of 8.0 pF and 18 pF respectively.