Crystal unit
CYLINDER HIGH-FREQUENCY CRYSTAL UNIT
CA-301
Products number
Q21CA 3 0 1 x x x x x 0 0
• Compact design with case as small as 3 mm in diameter while still
maintaining excellent characteristics of AT-cut.
• High-stability assured with tight vacuum sealing.
• Capable of covering a frequency range from 4 MHz to 64 MHz.
Actual size
Specifications (characteristics)
Item
Symbol
f
30.000 MHz to 64.000 MHz
T
STG
T
OPR
GL
DL
∆f/f
-40 °C to +85 °C
-20 °C to +70 °C
2 mW Max.
10 µW to 100 µW
±30 x 10
-6
(Under 5.5 MHz: ±50 x 10
-6
,±100 x 10
-6
)
Under 5.5 MHz: ±50 x 10
-6
Over 5.5 MHz: ±30 x 10
-6
C
L
R
1
C
0
IR
fa
Fundamental: 10 pF to
∞.
Over tone: 5 pF to
∞
Ta=+25 °C
-10 °C to +60 °C
-20 °C to +70 °C
Please specify
-20 °C to +70 °C, DL=100 µW
Specifications
4.000 MHz to 29.999 MHz
Remarks
∗
1
∗
2
Fundamental mode
3rd overtone mode
Stored as bare product after unpacking
The operating temperature range is -10 °C to +60 °C
for 5.5 MHz and below
Nominal frequency range
Temperature
range
Drive level
Storage temperature
Operating temperature
Maximum drive level
Recommended level
Only crystal oscillation is guaranteed
Frequency tolerance (standard)
Frequency temperature characteristics
(standard)
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
As per below table
5 pF Max.
500 MΩ Min.
±5 x 10
-6
/year Max.
Ta=+25 °C±3 °C, first year
Three drops on a hard board from 750 mm height or
Shock resistance
S.R.
±10 x 10 Max.
-6
excitation test with 29400 m/s
2
x 0.3 ms x 1/2 sine
wave x 3 directions
∗1
8.0 MHz
<
f
<
8.2 MHz: Unavailable.
4.0 MHz
<
=
f < 5.5 MHz : As per below table.
∗2
26.000 MHz
≤
f < 30.000 MHz : please contact us for inquiries for 3rd overtone mode.
Series resistance
Frequency (MHz)
4.0
≤
f < 5.5
5.5
≤
f < 6.0
6.0
≤
f < 10.0
10.0
≤
f < 12.0
12.0
≤
f < 16.0
16.0
≤
f < 30.0
26.0
≤
f < 36.0
36.0
≤
f
≤
64.0
Series resistance (Ω)
150
Ω
Max.
100
Ω
Max.
80
Ω
Max.
60
Ω
Max.
50
Ω
Max.
40
Ω
Max.
100
Ω
Max.
80
Ω
Max.
3rd overtone
Fundamental
mode
External dimensions
(Unit: mm)
D
1
B
D
2
200AM49
L
1
L
2
Available frequencies from 4.0 MHz to less than 5.5 MHz
Frequency (MHz)
4.000 MHz
4.032 MHz
4.096 MHz
4.190 MHz
4.194304 MHz
4.433619 MHz
4.500 MHz
4.800 MHz
4.842673 MHz
4.9152 MHz
Model
L
1
L
2
D
1
D
2
ø0.3
ø0.3
B
1.1
1.1
Under 5.5 MHz 10.3 Max. 9.5 Min. ø3.1 Max.
CA-301
Over 5.5 MHz 8.9 Max. 9.5 Min. ø3.1 Max.
Sample products are without marking.
22
SEIKO [ SEIKO EPSON CORPORATION ]
