Citizen Crystals and Oscillators - CMR310T/309T
Page 1 of 2
CMR310T/CMR309T
FEATURES:
(1,000pcs/reel)
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
Nominal frequency
Frequency tolerance
Frequency
vs.Temperature
Characteristics
Operating
temperature range
Storage temperature
range
Equivalent series
resistance
Load capacitance
Shunt capacitance
Drive level
Insulation resistance
Aging (First year)
Sealing
Shock resistance
CMR310T
CMR309T
Conditions
4.001MHz to 32MHz (fund) Please contact
us for changes
30MHz to 70MHz (3rd OT
)
in frequency.
At 25°C
-10°C to +60°
C
f
0
delta
delta
3.5MHz to 4.000MHz
f/f
0
f/f
0
±30ppm or ±50ppm
±50ppm (±30ppm)
-40°C to + 85°C
-55°C to +125°C
See drawing
16.0pF TYP.
5.0pF MAX.
50 µW to 100µW
500M ohm MIN.
± 5ppm MAX.
1 x 10
-2
µ Pa·m
3
/s MAX.
T
opr
T
stg
R
1
C
L
C
0
DL
IR
delta
At 25°C
Please specify
DC100V ±
15V
25°C ± 3°C
Conditions
will vary
depending on
the frequency.
f/f
0
±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
FREQUENCY vs TEMPERATURE CURVE
http://www.citizencrystal.com/quartz/crystals/cmr310t309t_d.htm
4/2/2003
Citizen Crystals and Oscillators - CMR310T/309T
Page 2 of 2
EQUIVALENTSERIES RESISTANCE (ESR, R1)(Ohm MAX.)
Frequency
3.5MHz <(=) f
0
< 4MHz
4MHz <(=) f
0
< 6MHz
6MHz <(=) f
0
< 10MHz
10MHz <(=) f
0
<(=) 32MHz
30MHz < f
0
< 36MHz
36MHz <(=) f
0
< 70MHz
Equivalent series resistance
200
150
100
50
100
80
3rd OT
Fundamental
Mode
DIMENSIONS: (UNIT=mm)
RECOMENDED SOLDERING PATTERN: (UNIT=mm)
http://www.citizencrystal.com/quartz/crystals/cmr310t309t_d.htm
4/2/2003
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
