Crystal unit
THIN SMD HIGH-FREQUENCY CRYSTAL UNIT
FA-238
Products number
Q2 2 FA 2 3 8 x x x x x 0 0
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High-density mounting-type SMD.
Excellent reliability and environment capability.
Capable of covering a wide frequency range. (from 20 MHz to 50 MHz)
0.7 mm Max. thickness is equal to SMD-type IC.
Actual size
Specifications (characteristics)
Item
Symbol
f
T
STG
T
OPR
GL
DL
∆
f/f
Specifications
16.000 MHz to 50.000 MHz
-55 °C to +125 °C
-20 °C to +70 °C
2 mW Max.
100 µW Typ.
±50 x 10
-6
±30 x 10
-6
(STD)
Ta=+25 °C±3 °C
Please ask tighter tolerance
-20 °C to +70 °C
-10 °C to +60 °C
-20 °C to +70 °C
Please specify
-20 °C to +70 °C,DL=100 µW
Only crystal oscillation is guaranteed
Remarks
Fundamental mode
Stored as bare product after unpacking
Nominal frequency range
Temperature
range
Drive level
Storage temperature
Operating temperature
Maximum drive level
Recommended drive level
Frequency tolerance (standard)
Frequency temperature characteristics
(standard)
Available from ±12 x 10
-6
(Custom)
Available from ±15 x 10
-6
(Custom)
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
C
L
R
1
C
0
IR
fa
10 pF to
∞
(standard:12 pF)
100
Ω
Max. (16 MHz
≤
f < 30 MHz)
60
Ω
Max. (30 MHz
≤
f
≤
50 MHz)
5.0 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 or excitation
Shock resistance
S. R.
±10 x 10 Max.
-6
test with 29400 m/s
2
x 0.3 ms x 1/2 sine wave x 3
directions
External dimensions
#4
#3
(Unit: mm)
Recommended soldering pattern
(Unit: mm)
#1
2000M
E66RA
#2
3.2
1.2
2.5
2.2
Internal connection
#4
#3
1.6
1.4
0.7
#1
#2
0.8
#2 and #4 is connected with a cover.
25
0.9
1.2
0.7 Max.