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LS840 Series


The LS840 Series Low-Noise, Low-Drift, Low-Capacitance, Monolithic Dual N-Channel JFET Amplifier is a pin-for-pin replacement for the Fairchild, Motorola, National and Siliconix-Vishay part series. Available in the TO-71 6L, TO-78 6L, PDIP 8L and SOIC 8L RoHS package, as well as bare die.

Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out.


Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at or call (510) 490-9160. MOQ applies to these specialized services.

Ordering Information

Below are the options you have when ordering this part series:

  • LS840 TO-71 6L RoHS

  • LS841 TO-71 6L RoHS

  • LS842 TO-71 6L RoHS

  • LS840 TO-78 6L RoHS

  • LS841 TO-78 6L RoHS

  • LS842 TO-78 6L RoHS

  • LS840 PDIP 8L RoHS

  • LS841 PDIP 8L RoHS

  • LS842 PDIP 8L RoHS

  • LS840 SOIC 8L RoHS

  • LS841 SOIC 8L RoHS

  • LS842 SOIC 8L RoHS

  • LS840 Die

  • LS841 Die

  • LS842 Die

LS840 Series
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