The LP49-20-3.6864M is part of the Pletronics series of oscillators. It is a low-power 4-pin oscillator with a frequency of 3.6864 MHz, a maximum supply voltage of 2.25V, and an frequency stability of +/-20ppm. The device features a CMOS output, providing low jitter, low phase noise and a wide supply voltage range. It also has a low-profile surface mount package for easy installation.