LSK170B SOT-23 3L ROHS

$6.34

Description：JFET N-CH 40V 10MA SOT23-3
Series：LSK170B

SKU:48266ac8f417 Category: JFETs Brand: Linear Integrated Systems, Inc.

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Product introduction

Product Detailed Parameters

Description：JFET N-CH 40V 10MA SOT23-3
Series：LSK170B
Mfr：Linear Integrated Systems, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
FET Type：N-Channel
Voltage - Breakdown (V(BR)GSS)：40 V
Drain to Source Voltage (Vdss)：40 V
Current - Drain (Idss) @ Vds (Vgs=0)：6 mA @ 10 V
Current Drain (Id) - Max：10 mA
Voltage - Cutoff (VGS off) @ Id：200 mV @ 1 nA
Input Capacitance (Ciss) (Max) @ Vds：20pF @ 15V
Resistance - RDS(On)：-
Power - Max：400 mW
Operating Temperature：-55°C ~ 135°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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LSK170B SOT-23 3L ROHS

Overview

The LSK170B SOT-23 3L ROHS is a single N-channel JFET designed for ultra-low noise and high input impedance applications. It features a minimum gate-to-source breakdown voltage of 40V, a typical full conduction transconductance of 22mS, and a maximum common source input capacitance of 20pF. The device operates within a junction temperature range of -55°C to +135°C with a continuous power dissipation of 400mW at 25°C. Drain to source saturation current ranges from 6.0mA to 12.0mA.

Feature Summary

Ultra-low noise performance optimized for both high and low frequencies
High input impedance with narrow IDSS range for design stability
Direct pin-for-pin replacement for Toshiba's 2SK170

Applications

Audio amplifiers and preamps
Discrete low-noise operational amplifiers
Guitar pickups and effects pedals
Microphones and audio mixer consoles
Acoustic sensors and sonobuoys

Procurement Notes

Verify the specific package type matches the required footprint during procurement. Confirm RoHS compliance status as standard parts are compliant while non-RoHS availability requires factory contact. Ensure the ordering suffix aligns with the desired grade and packaging specifications provided in the official documentation.

Selection Notes

Select this component when low noise and high input impedance are critical requirements. The narrow IDSS range facilitates easier design, particularly in low voltage applications. Consider the SOT-23 package for compact embeddable designs where space and shielding are constraints compared to through-hole alternatives.

Part Context

This part belongs to the LSK170 series of high input impedance, ultra-low noise single N-channel JFETs. The series includes variants A, B, C, and D with different IDSS grades. It serves as an improved functional replacement for Interfet models IF1320, IF1330, IF1331, and IF4500.