.The TXC Corporation 7V27000008 Crystal Resonator is a surface mount, RoHS-compliant, four-pin device rated to operate at 27MHz ±10ppm. This crystal resonator is a miniature electronic component designed to produce highly exact frequencies in signal-generation applications, such as clocks, radio transmissions, and communications equipment. It offers superior stability and reliable performance, allowing it to be used in a wide range of devices. This resonator is manufactured with high-quality components, and is designed to last through conditions of extreme temperature and humidity.