“X3215” series
3.2x1.5x0.8 mm 32.768 KHz
Tuning Fork Surface Mount Crystal
Precision time piece in miniature ceramic package for SMD mounting.
100% RoHS compliant and lead-free product.
Low aging. High shock and vibration resistant.
Applications include real-time clocks, battery operated devices.
GENERAL SPECIFICATIONS
Mercury Part No.
Frequency
Crystal Cut
Mode of Oscillation
Turnover Temperature
Frequency Tolerance at 25°C
Frequency vs. Temperature
Equivalent Series Resistance
Shunt Capacitance (Co)
Motional Capacitance (C1)
Load Capacitance (CL)
Drive Level
Aging at 25°C
Insulation Resistance
Packaging
MERCURY
Since 1973
X3215-32.768K-12.5P or X3215-32.768K-9P
32.768KHz
X-CUT
Fundamental mode
25°C ±5°C
±20ppm max. with drive level at 0.1 uW
-0.04 ppm± 0.008 ppm/°C
2
max. Parabolic
65 KΩ typical; 70 KΩ max. with drive level at 0.1 uW
1.6 pF typical; 2.0 pF max.
3.6 fF typical
9 pF or 12.5pF
0.1
μW
typical; 1.0 u W max.
±3 ppm / year max.
500 MΩ min. at 100 V±15 V DC
8 mm tape. 4 mm pitch, 180 mm reel, 3000 pcs per reel.
FREQUENCY TEMPERATURE CHARACTERISTIC CURVE
by curve
f /
∆
f (ppm
)
HOW TO ORDER
Please order either X3215-32.768K-9P or X3215-32.768K-12.5P
X3215
—
by calculation
Frequency deviation at one particular temperature (Tx) with
respect to the frequency at +25°C is
∆f
/
f (ppm) = -0.04 * (Tx – 25)
2
2
Example: at +60°C, the frequency drifts -49 ppm.
∆f
/
f (ppm) = -0.04*(60-25) = - 49 ppm
: Please specify
32.768K
—
9P
: Load Capacitance (CL): 9P for 9 pF
: Crystal package prefix ; : Frequency: 32.768 KHz;
load capacitance; 12.5P for 12.5 pF load capacitance.
MERCURY
www.mercury-crystal.com
Taiwan: TEL (886)-2-2695-7099, FAX (886)-2-2695-7473,
e-mail: sales-tw@mercury-crystal.com
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762,
e-mail: sales-us@mercury-crystal.com
MERCURY
Page 2 of 2
Date: Aug. 1, 2007
Rev. 1
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
