Datasheet

DIMENSIONS
100% leadfree, RoHS - compliant
CM8V-T1A
Tuning Fork Crystal 32.768 kHz
All dimensions in mm typical
DESCRIPTION:
This SMD ceramic package has been specially designed for miniature
telecom and portable applications. The Ultra Miniature Tuning Fork
(UMTF) in this product is achieved by a special manufacturing process,
this technology leads to improved electrical characteristics.
For pick-and-place equipment, the parts are available in 8 mm tape:
7” (178 mm) reel with 1’000 crystals
7” (178 mm) reel with 3’000 crystals
13” (330 mm) reel with 14’000 crystals
Miniature SMT ceramic package
Ultra low profile: 0.60 mm height
SMD-package in Tape and Reel
Ind. and Ext. temperature ranges
High stability
Low aging
Low power consumption
High shock and vibration resistance
ELECTRICAL CHARACTERISTICS
AT 25
o
C:
1) Other frequencies on request.
2) Other load capacitances on request.
3) Tighter and wider frequency tolerances on request.
Nominal Frequency
1)
F
L
32.768 kHz
Load capacitance
2)
C
L
7.0 / 9.0 / 12.5 pF
Frequency tolerance
3)
F/F +/-20 ppm
F/F +/-100 ppm
Series resistance max. R
S
90 k
Motional capacitance typ. C
1
3.5 fF
Static capacitance typ. C
0
1.0 pF
Drive level max. P 0.5 W
Insulation resistance min. R
i
500 M
Aging fi rst year max. F/F +/-3 ppm
Turnover temperature T
0
25 +/-5 °C
Frequency vs. temperature F/F
0
–0.035
ppm
/
°C²
(T - T
0
)
2
+/-10% ppm
Package:
Recommended Solder Pad:
1,2
max.0,60
1,5
0,8 0,7 0,8
0,550,55
2,0