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 3 Sizes - WX: 3x8mm, WX26: 2x6mm, WX15: 1.5x5mm,
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)
Frequency Stability over OTR
°
-10 to +60 C for thru hole models, -40 to +85°C for WX26-32.768k-SMD
2
Calculate as: Frequency shift from 25°C to T°C in PPM = - 0.038 x (T - 25) ± 10%
Load Capacitance
12.5 pF standard, 8 pF available for WX15
40 k maximum
Equivalent Series Resistance (ESR)
Drive Level
Ω
μ
1 W maximum
± 3 PPM maximum
1.7pF maximum
°
Aging at 25 C for the 1st year
Shunt Capacitance
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 --
- SMD - XXX (Internal Code or blank)
Optional (WX26 & 12.5pF only)
Model
WX: 3x8mm
WX26: 2x6mm
WX15: 1.5x5mm
Non Std Load Capacitance for WX26
Blank = 12.5pF
Packaging
Bulk
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
MAX Length
Lead Length
.039 (1.0)
.236 (6.0)
.079 (2.0)
MAX
Diameter
Lead
Spacing
.100 (2.54)
.079 (2.0)
Lead Dia
Solder Pads
Lead Spacing
.043 (1.1)
Model Diameter Length Lead Length Lead Dia
WX .122 (3.1) .323 (8.2) .394 (10.0) .014 (.35)
WX26 .083 (2.1) .244 (6.2) .394 (10.0) .010 (.26)
WX15 .059 (1.5) .201 (5.1) .169 (4.3)
.008 (0.2)
.061 (1.54)
.039 (1.0)
.028 (0.7)
.018 (.45)
.236 (6.0)
.098
(2.5)
.069
(1.75)
May 2007
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
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