WC Series Crystals ¾ 32.768KHZ Only ¾ Standard Cylindrical Holders ¾ RoHS Compliant Available ¾ Industrial Temperature Range ELECTRICAL SPECIFICATIONS: Series Frequency Range Frequency Tolerance Frequency Stability Turnover Temperature (To) Operating Temp. Range Storage Temp. Range Aging Shunt Capacitance Equivalent Series Resistance Load Capacitance Drive Level Motional Capacitance Capacitance Ratio Quality Factor WC155 32.768KHZ See Part Number Guide -.034(±.006)ppm/°C2(T-To)2 +25°C ±5°C -40°C to +85°C -40°C to +85°C ±3ppm / 1st year max 1.00pF typical 40K Ohms max 6pF, 8pF, or12.5pF 1uWatt max 2.5fF typical 400 typical 80K typical WC26 32.768KHZ See Part Number Guide -.034(±.006)ppm/°C2(T-To)2 +25°C ±5°C -40°C to +85°C -40°C to +85°C ±3ppm / 1st year max 1.35pF typical 35K Ohms max 6pF, 8pF, or12.5pF 1uWatt max 3.0fF typical 450 typical 70K typical WC38 32.768KHZ See Part Number Guide -.034(±.006)ppm/°C2(T-To)2 +25°C ±5°C -40°C to +85°C -40°C to +85°C ±3ppm / 1st year max 1.60pF typical 35K Ohms max 6pF, 8pF, or12.5pF 1uWatt max 3.5fF typical 460 typical 90K typical MECHANICAL DIMENSIONS: PART NUMBERING GUIDE: 32.768KHZ Series WC155 WC26 WC38 RoHS Compliant Blank = Not Compliant F = Is Compliant Frequency Tolerance Blank = ±20 ppm -08 = ±8 ppm -10 = ±10 ppm Load Capacitance Blank = 12.5pF 6 = 6pF 8 = 8pF Please consult with MMD sales department for any other parameters or options. MMD Components, 30400 Esperanza, Rancho Santa Margarita, CA, 92688 Phone: (949) 709-5075, Fax: (949) 709-3536, www.mmdcomp.com [email protected] Specifications subject to change without notice Revision 12/19/06 G