WC156SM-32.768KHZ Series Crystal ¾ Ultra Low Profile with 1.5mm Height max ¾ 32.768KHZ ¾ RoHS Compliant Available ¾ Ideal for use in space confined applications ¾ Tape and Reel Packaging ELECTRICAL SPECIFICATIONS: Frequency Frequency Tolerance Turnover Temperature Temperature Coefficient Load Capacitance Series Resistance Maximum Drive Level Recommended Drivel Level Shunt Capacitance Aging Operating Temperature Storage Temperature 32.768KHZ ±20ppm or ±50ppm +25°C ±5°C -0.04 x 10-6/°C2 7.0pF or 12.5pF 65K Ohms max 1.0 uWatt 0.1 uWatt 0.8pF typ ±3ppm for the first year -40°C to +85°C -55°C to +125°C MECHANICAL DETAIL: 7.10 [.280] MAX 4 4 3 3.30 [.130] 1 MAX 2 3 2.50 [.098] 1 2 1.20 [.047] 3.88 [.153] INTERNAL CONNECTION DO NOT CONNECT PINS 2 & 3 TO EXTERNAL DEVICES 1.20 [.047] 1.50 [.059] 1.00 [.039] 5.08 [.200] 1.50 [.059] 1.30 [.051] 1.50 [.059] Recommended Land Pattern 0.75 [.030] 0.40 [.016] Dimension in Brackets are in Inches 0.75 [.030] 1.60 [.063] PART NUMBER GUIDE: WC156SM RoHS Compliant Blank = Not Compliant F = Is Compliant Frequency Tolerance Blank = ±20 ppm 50 = ±50 ppm 32.768KHZ Load Capacitance Blank = 12.5pF 7 = 7pF Value Added Options Blank = No Added Options T = Tape and Reel 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 12/12/05 A