Product Announcements: Junction Field-Effect Transistors (JFET)

The J-FET (Junction Field Effect Transistor) is a voltage controlled device: that is a small change in input voltage causes a large change in output current. The JFET differs from an MOSFET; its input is a PN junction rather than a metal oxide or capacitor input as in the MOSFET. (read more)

The following is provided to address some of the more commonly asked questions regarding how LIS is meeting customer demand to supply product which is compliant to the RoHS and WEEE Directives. (read more)

Second Source Replacements for Current & Discontinued Siliconix JFETs

Monolithic Duals-JFETS: SST/U401-406 Series, ST/U440-441 Series

Current Regulating Diodes: J/SST500-511 Series

Pico Amp Low Leakage Diodes: DPAD/SSTDPAD Series - Dual, JPAD/PAD/SSTPAD Series - Single

Lead Free/ROHS

Instant Availability (read more)

LSK389 Series: 1nV Low Noise Monolithic Dual Single N-Channel JFETs.Ideal for Low Noise (1nV typ) applications seeking Tighter IDSS Matching, Good Thermal Tracking, High Gain (Yfs=22mS), Low Capacitance (22pf),and narrow ranges of IDSS 2.6-6mA, 6-12mA, 10-20mA. Improved Functional Replacement for Toshiba 2SK389. Available in Surface Mount(SOIC-8) and Thru-Hole Versions. Instant Availability (read more)

LSK170 Series: 1nV Low Noise Single N-Channel JFETs.Ideal for Low Noise (1nV typ) applications seeking High Gain (Yfs=22mS), High Input Impedance, Low Capacitance (22pf),and narrow ranges of IDSS 2.6-6mA, 6-12mA, 10-20mA. Improved Replacements for Toshiba 2SK170, and Interfet IF1320, IF1330, IF1331, IF4500. Available in Surface Mount(SOT23-3) and Thru-Hole Versions. Instant Availability (read more)

LS843, LS844, LS845 Series (3nV) Low Noise Monolithic Dual N-Channel JFET. Ideal for Low Noise (3nV typ), Low Power, Low Capacitance (3pf) applications seeking Tight Matching (1-15mV). Improved Replacement for Siliconix U401 and SST401 Series. Available in Surface Mount and Thru-Hole Versions. Instant Availability (read more)