Crystal unit
CYLINDER HIGH-FREQUENCY CRYSTAL UNIT
CA-301
Products number
Q21CA3 0 1 xx x x x 00
• 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)
Symbol
Specifications
4.000 MHz to 29.999 MHz
30.000 MHz to 64.000 MHz
-40 °C to +85 °C
Remarks
Item
1
2
Fundamental mode
3rd overtone mode
f
Nominal frequency range
TSTG
TOPR
GL
Storage temperature
Stored as bare product after unpacking
The operating temperature range is -10 °C to +60 °C
for 5.5 MHz and below
Temperature
range
-20 °C to +70 °C
Operating temperature
Maximum drive level
Recommended level
2 mW Max.
Only crystal oscillation is guaranteed
Drive level
DL
10 µW to 100 µW
-6
-6
-6
±30 x 10 (Under 5.5 MHz: ±50 x 10 ,±100 x 10 )
∆f/f
Ta=+25 °C
-10 °C to +60 °C
Frequency tolerance (standard)
-6
Under 5.5 MHz: ±50 x 10
Frequency temperature characteristics
(standard)
-6
Over 5.5 MHz: ±30 x 10
-20 °C to +70 °C
CL
R1
C0
IR
fa
Fundamental: 10 pF to ∞. Over tone: 5 pF to ∞
Please specify
Load capacitance
Series resistance
Shunt capacitance
As per below table
5 pF Max.
-20 °C to +70 °C, DL=100 µW
500 MΩ Min.
Insulation resistance
Aging
-6
±5 x 10 /year Max.
Ta=+25 °C±3 °C, first year
Three drops on a hard board from 750 mm height or
-6
±10 x 10 Max.
2
excitation test with 29400 m/s x 0.3 ms x 1/2 sine
Shock resistance
S.R.
wave x 3 directions
<
=
1
2
8.0 MHz < f < 8.2 MHz: Unavailable. 4.0 MHz f < 5.5 MHz : As per below table.
26.000 MHz ≤ f < 30.000 MHz : please contact us for inquiries for 3rd overtone mode.
(Unit: mm)
Series resistance
External dimensions
mode
Frequency (MHz)
4.0 ≤ f < 5.5
Series resistance (Ω)
150 Ω Max.
100 Ω Max.
80 Ω Max.
5.5 ≤ f < 6.0
B
D1
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
D2
Fundamental
60 Ω Max.
200AM49
50 Ω Max.
40 Ω Max.
100 Ω Max.
80 Ω Max.
L1
L2
3rd overtone
Available frequencies from 4.0 MHz to less than 5.5 MHz
Frequency (MHz)
L2
D1
Model
L1
D2
B
4.433619 MHz
4.500 MHz
4.000 MHz
4.032 MHz
4.096 MHz
4.190 MHz
4.194304 MHz
9.5 Min. ø3.1 Max.
9.5 Min. ø3.1 Max.
Under 5.5 MHz
Over 5.5 MHz
ø0.3
ø0.3
1.1
1.1
10.3 Max.
8.9 Max.
CA-301
4.800 MHz
4.842673 MHz
4.9152 MHz
Sample products are without marking.
22