The 2N4117A-E3 is a 70V N-channel JFET provides ultra-high input impedance. This device is specified with a 1pA limit and typically operate at 0.2pA. It makes them perfect choices for use as high-impedance sensitive front-end amplifiers. Suitable for smoke detector input, infrared detector amplifier and precision test equipment applications.
Very low current/voltage operation
Low noise
Insignificant signal loss/error voltage with high-impedance source
