SMP4338

$4.37

Description：JFET N-Channel -50V Low Ciss
Series：SMP4338

SKU:5f565574bbae Category: JFETs Brand: InterFET

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Product introduction

Product Detailed Parameters

Description：JFET N-Channel -50V Low Ciss
Series：SMP4338
Mfr：InterFET
Package：Strip
FET Type：N-Channel
Voltage - Breakdown (V(BR)GSS)：-
Drain to Source Voltage (Vdss)：50 V
Current - Drain (Idss) @ Vds (Vgs=0)：40 µA @ 15 V
Current Drain (Id) - Max：-
Voltage - Cutoff (VGS off) @ Id：700 mV @ 100 nA
Input Capacitance (Ciss) (Max) @ Vds：3pF @ 15V
Resistance - RDS(On)：1.2 kOhms
Power - Max：350 mW
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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SMP4338

Overview

The InterFET SMP4338 is an N-channel JFET utilizing the proprietary N0016H geometry, housed in a surface-mount SOT-23 package. It features a gate-to-source breakdown voltage of -50V and a typical input capacitance of 3pF. The device exhibits low gate leakage, typically less than 1pA at 40V, and a noise figure of 3.5 nV/√Hz. The gate-to-source cutoff voltage is specified as less than -1.0V, making it suitable for low-level power supply applications.

Feature Summary

Utilizes InterFET N0016H geometry for high radiation tolerance
Provides exceptionally low gate leakage and input capacitance
Offers low noise performance for precision amplifier stages
Features interchangeable source and drain pins

Applications

Low noise precision amplifiers
Radar and satellite communications systems
Medical imaging equipment and ultrasound devices
Electret microphone preamplifiers

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, such as bulk or tape and reel quantities. Confirm compliance with RoHS, REACH, and CMR standards. Ensure the design accounts for the maximum ratings regarding junction temperature and power dissipation derating factors under actual operating conditions.

Selection Notes

Select this component when extremely low input capacitance and high radiation hardness are critical requirements. The SMP4338 serves as a direct cross-reference to industry standard parts like the 2N3460 and MMBFJ201. Consider its low cutoff voltage characteristics if designing circuits for low-level power supplies or sensitive signal mixing applications.

Part Context

This part belongs to the InterFET 2N4338-9 series of N-channel JFETs designed for military, aerospace, and medical applications. The product line emphasizes high reliability through specialized manufacturing processes. The SMP4338 variant specifically provides the surface-mount footprint necessary for modern compact electronic designs requiring robust semiconductor components.