CRYSTAL, 18.432MHZ, 18PF, HC-49S; Frequency Nom: 18.432MHz; Crystal Case: Through Hole, 11.35mm x 5mm; Frequency Stability + / -: 50ppm; Load Capacitance: 18pF; Frequency Tolerance + / -: 30ppm; Product Range: AS Series; Operating Temperature Min: -20°C; Operating Temperature Max: 70°C; SVHC: No SVHC (15-Jan-2019)