U402 TO-71 6L ROHS

$6.78

Description：JFET 2N-CH 50V TO71
Series：U402

SKU:a5df751dc14d Category: JFETs Brand: Linear Integrated Systems, Inc.

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Product introduction

Product Detailed Parameters

Description：JFET 2N-CH 50V TO71
Series：U402
Mfr：Linear Integrated Systems, Inc.
Package：Bulk
FET Type：2 N-Channel (Dual)
Voltage - Breakdown (V(BR)GSS)：50 V
Drain to Source Voltage (Vdss)：50 V
Current - Drain (Idss) @ Vds (Vgs=0)：500 µA @ 10 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：500 mV @ 1 nA
Input Capacitance (Ciss) (Max) @ Vds：8pF @ 15V
Resistance - RDS(On)：-
Power - Max：300 mW
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-71-6 Metal Can
Supplier Device Package：TO-71
Grade：-
Qualification：-

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U402 TO-71 6L ROHS

Overview

The U402 is a monolithic dual N-channel JFET switch manufactured by Linear Integrated Systems. It integrates two independent JFET elements within a single silicon die, housed in a TO-71 cylindrical metal package with six wire leads. The device is engineered for low noise and minimal parameter drift over temperature variations. Key electrical characteristics include a typical pinch-off voltage of 2.5V and a gate-source voltage drift of 10µV/°C. The input noise density is specified at 6nV/√Hz at 10Hz. It operates as an enhancement mode device suitable for precision analog switching applications.

Feature Summary

Monolithic integration of dual N-channel junction field-effect transistors on a single silicon substrate
Low thermal drift performance with a typical gate-source voltage change of 10µV per degree Celsius
Ultra-low input noise density characteristic optimized for sensitive signal paths
Metal cylindrical packaging providing robust mechanical stability and environmental protection

Applications

Precision analog signal switching circuits
Low-noise instrumentation amplifier inputs
High-impedance buffer stages requiring minimal leakage current
Calibration systems utilizing low-drift reference components

Procurement Notes

Verify the manufacturer origin carefully, as multiple entities including Calogic and Micross Components have produced variants of this part number. Confirm the specific package style matches the required TO-71 form factor. Check for RoHS compliance status as historical production runs may differ from current stock. Ensure the pinout configuration aligns with the intended circuit design before finalizing procurement orders.

Selection Notes

Select this component when application requirements demand extremely low offset voltage drift and minimal input noise in a dual-switch configuration. The TO-71 package is suitable for through-hole mounting where space constraints allow for larger footprints compared to surface-mount alternatives. Consider the specific pinch-off voltage tolerance if precise control over the off-state resistance is critical for the system design.

Part Context

This component belongs to a family of low-noise, low-drift monolithic JFET switches originally developed by Siliconix and later acquired or continued by Linear Integrated Systems and other manufacturers. The U402 specifically denotes the dual N-channel variant packaged in the standard TO-71 metal can. It serves as a direct replacement for legacy discrete JFET pairs that previously occupied significant board space and exhibited higher parameter mismatches.