CMR310T/CMR309T
FEATURES:
● The units are high-performance, miniature crystal units
manufactured with Citizen's ultrahigh-precision processing
technology.
● Ideal for low cost SMD applications.
● Provided in Tape and Reel.
APPLICATIONS:
● Can be used for a wide range of applications including
use in AV equipment, OA equipment, communication
equipment and measuring instruments.
STANDARD SPECIFICATIONS
Item CMR310T CMR309T Conditions
Nominal frequency f03.5MHz to 4.000MHz
4.001MHz to 32MHz (fund)
30MHz to 70MHz (3rd OT)
Please contact
us for changes
in frequency.
Frequency tolerance delta f/f0±30ppm or ±50ppm At 25°C
Frequency
vs.Temperature
Characteristics delta f/f0±50ppm (±30ppm) -10°C to
+60°C
Operating
temperature range Topr -40°C to + 85°C
Storage temperature
range Tstg -55°C to +125°C
Equivalent series
resistance R1See drawing At 25°C
Load capacitance CL16.0pF TYP. Please specify
Shunt capacitance C05.0pF MAX.
Drive level DL 50 µW to 100µW
Insulation resistance IR 500M ohm MIN. DC100V ±
15V
Aging (First year) delta f/f0± 5ppm MAX. 25°C ± 3°C
Sealing 1 x 10-2 µ Pa·m3 /s MAX.
Shock resistance ±5ppm MAX.
Drop test of 3 times on a hard board from 75cm height or shock test of
3000G x 0.3ms x 1/2sin wave x 3 directions
Conditions
will vary
depending on
the frequency.
FREQUENCY vs TEMPERATURE CURVE
EQUIVALENTSERIES RESISTANCE (ESR, R1)(Ohm MAX.)
Frequency Equivalent series resistance Mode
3.5MHz <(=) f0 < 4MHz 200
Fundamental
4MHz <(=) f0 < 6MHz 150
6MHz <(=) f0 < 10MHz 100
10MHz <(=) f0 <(=) 32MHz 50
30MHz < f0 < 36MHz 100 3rd OT
36MHz <(=) f0 < 70MHz 80
DIMENSIONS: (UNIT=mm)
RECOMENDED SOLDERING PATTERN: (UNIT=mm)
