MX2N4857UB/TR

$57.26

Description：JFET
Series：*

SKU:88648695d111 Category: JFETs Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：JFET
Series：*
Mfr：Microchip Technology
Package：Tape & Reel (TR)
FET Type：-
Voltage - Breakdown (V(BR)GSS)：-
Drain to Source Voltage (Vdss)：-
Current - Drain (Idss) @ Vds (Vgs=0)：-
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：-
Input Capacitance (Ciss) (Max) @ Vds：-
Resistance - RDS(On)：-
Power - Max：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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MX2N4857UB/TR

Overview

The MX2N4857UB/TR is an N-channel silicon Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It operates in depletion mode with a single configuration. The device features a Drain-Source Breakdown Voltage of 40 V and a Gate-Source Breakdown Voltage of -40 V. Continuous drain current is rated at 360 mA, while the drain-source on-resistance is specified at 40 Ohms. Power dissipation reaches 360 mW. The component supports a wide operating temperature range from -65°C to +200°C and utilizes an SMD/SMT LCC-3 package.

Feature Summary

High-temperature operation capability up to +200°C for demanding environments
Silicon JFET technology providing stable depletion mode performance
Single N-channel configuration suitable for signal switching applications

Applications

High-reliability analog signal switching circuits
Military and aerospace electronic systems requiring extended temperature tolerance
Precision instrumentation input stages

Procurement Notes

Verify the specific datasheet version for the MX2N4857UB/TR, as official documentation may reference the broader 2N4856-2N4861 family specifications. Confirm that the LCC-3 surface-mount package aligns with your PCB footprint requirements. Ensure compliance with MIL-PRF-19500/385 standards if applicable to your project's reliability criteria before finalizing procurement.

Selection Notes

Select this component when high-temperature stability and low on-resistance are required in a compact surface-mount format. Compare against through-hole TO-18 variants like the MX2N4857UB if board space permits. Verify that the 40V breakdown voltage meets circuit constraints. Consider the LCC-3 package compatibility during layout design to ensure proper thermal and electrical connections.

Part Context

This part belongs to the Microchip 2N4856-2N4861 series of N-channel JFETs. These devices are designed for high-reliability applications, often adhering to military specifications such as MIL-PRF-19500/385. The series offers various breakdown voltage options ranging from 30V to 40V, with the MX2N4857UB/TR specifically providing 40V capability in a modern surface-mount package.