LSK170B TO-92 3L ROHS

$6.05

Description：JFET N-CH 40V 10MA TO92
Series：LSK170B

SKU:c2f1076bb4c2 Category: JFETs Brand: Linear Integrated Systems, Inc.

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Product introduction

Product Detailed Parameters

Description：JFET N-CH 40V 10MA TO92
Series：LSK170B
Mfr：Linear Integrated Systems, Inc.
Package：Bulk
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：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92
Grade：-
Qualification：-

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LSK170B TO-92 3L ROHS

Overview

The LSK170B TO-92 3L ROHS is a single N-channel JFET in a through-hole TO-92 package. It features an ultra-low noise voltage of 0.9 to 1.9 nV/√Hz at 1kHz and a high breakdown voltage (BVGSS) of -40V minimum. The device offers a typical transconductance (Gfs) of 22mS and a maximum input capacitance of 20pF. Drain-to-source saturation current (IDSS) ranges from 6.0mA to 12.0mA. Continuous power dissipation is 400mW, with junction operating temperatures spanning -55°C to +135°C.

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 2SK170

Applications

Audio amplifiers and preamps
Discrete low-noise operational amplifiers
Microphones and acoustic sensors
Hydrophones and sonobuoys
Electrometers and vibration detectors

Procurement Notes

Verify the specific grade suffix 'B' corresponds to the required drain-to-source saturation current range of 6.0mA to 12.0mA. Confirm that the TO-92 3L package meets mechanical constraints. Ensure RoHS compliance requirements are satisfied by the standard part designation. Cross-reference absolute maximum ratings against circuit transient conditions.

Selection Notes

Select this component when low noise and high input impedance are critical. The B-grade IDSS range suits applications requiring moderate saturation currents. Consider the SOT-23 or SOT-89 variants if space constraints require surface mount technology. Evaluate the trade-off between noise density and capacitance for high-frequency signal paths.

Part Context

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