Plastic moulded surface mount watch crystal Frequency Parameters Frequency 32.768kHz Frequency Tolerance ±20.00ppm Tolerance Condition @ 25°C ±2°C Ageing ±3ppm max in 1st year @ 25°C Operable Temperature Range: -40 to 85°C Electrical Parameters Load Capacitance (CL) 7.0pF to 12.5pF Shu.