The OT201613.56MJBA4SL with SMD Oscillators(XO) SMD-2016-4P RoHS manufactured by Yangxing is a surface-mounted crystal oscillator designed for use on printed circuit boards. The oscillator operates in the frequency range of 13.56MHz and features a 4-pin package. The oscillator is RoHS compliant, making it certified to meet the European Union's regulations in regards to the restriction of hazardous substances. It is suitable for applications that require a low cost, highly reliable frequency reference source and can be used in various communication systems, ID cards, radios, wireless systems, computer, telecoms, and more.