CRYSTAL 4.9152MHZ 18PF HC-49S; Frequency Nom:4.9152MHz; Crystal Case:SMD 10.3mm x 3.8mm; Frequency Stability + / -:50ppm; Load Capacitance:18pF; Frequency Tolerance + / -:30ppm; Product Range:AS Series; Crystal Mounting Type:SMD ;RoHS Compliant: Yes