Pl tronics,. Inc. 19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA Manufacturer of High Quality Frequency Control Products WX Watch Crystals 32.768 kHz Cylindrical Watch Crystals Available in 2 Sizes - WX: 3x8mm, WX26: 2x6mm, WX26 also available as -SMD with formed leads 32.768 kHz Standard Specifications ± 20 PPM at 25°C for 12.5 pF, ± 30 PPM at 25°C for 6 pF Calibration Frequency Tolerance Operating Temperature Range (OTR) -10 to +60° C for thru hole models, -40 to +85°C for WX26-32.768k-SMD Frequency Stability over OTR Calculate as: Frequency shift from 25°C to T°C in PPM = - 0.038 x (T - 25) 2± 10% Load Capacitance Equivalent Series Resistance (ESR) Drive Level Aging at 25° C for the 1st year Shunt Capacitance 12.5 pF standard 40 k Ω maximum 1μ W maximum ± 3 PPM maximum 1.7pF maximum Part Numbering Guide Portions of the part number that appear after the frequency may not be marked on part (C of C provided) WX26 -- 32.768K -- Optional (WX26 & 12.5pF only) Model WX: 3x8mm WX26: 2x6mm Packaging Bulk - SMD - XXX (Internal Code or blank) Non Std Load Capacitance for WX26 Blank = 12.5pF Frequency in kHz Consult factory for available specifications. A special part number may be assigned. Mechanical: inches (mm) not to scale Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code. WX26-32.768k-SMD Lead Length MAX Length .039 (1.0) .236 (6.0) .079 (2.0) MAX Diameter Lead Spacing .100 (2.54) .079 (2.0) Lead Dia Solder Pads Model Diameter .122 (3.1) WX WX26 .083 (2.1) Length Lead Length Lead Dia Lead Spacing .043 (1.1) .323 (8.2) .394 (10.0) .014 (.35) .028 (0.7) .244 (6.2) .394 (10.0) .010 (.26) .061 (1.54) .039 (1.0) .098 .069 (2.5) (1.75) .236 (6.0) Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, [email protected], www.pletronics.com April 2011 40