Raltron Electronics Crystals AS-16.000-18-SMD-TR is a surface mount crystal oscillator designed for industrial applications. It has a frequency of 16 MHz and a tolerance of ±50 ppm. The capacitance is 18 pF and it has an operating temperature range of -20 to +70 °C. This crystal oscillator is suitable for use in a wide range of applications, including frequency control, timing, and synchronization. It is designed to provide reliable and accurate performance in harsh industrial environments. It is also RoHS compliant and has a lead-free finish. This crystal oscillator is ideal for use in a variety of applications, including automotive, medical, and industrial electronics.