Crystal unit
THIN SMD HIGH-FREQUENCY CRYSTAL UNIT
FA-248
Q22FA248xxxxx00
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Product number (please refer to page 1)
High-density mounting-type SMD.
Excellent shock resistance.
Capable of covering a wide frequency range. (from 12 MHz to 27 MHz)
0.9 mm Typ. thickness is equal to SMD-type IC.
Most suitable for small communication devices.
Available for lead (Pb)-free soldering.
Lead (Pb)-free terminal product.
Actual size
Specifications (characteristics)
Item
Nominal frequency
Storage temperature
Temperature
range
Operating temperature
Operable temperature
Recommended drive level
Frequency tolerance
Frequency temperature
characteristics
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
Shock resistance
∗1
Please ask tighter telerance.
Symbol
f
T
STG
T
OPR
T
USE
DL
Δf/f
Specifications
12.000 MHz to 27.000 MHz
-40 ˚C to +125 ˚C
-20 ˚C to +70 ˚C / -40 ˚C to +85 ˚C
As per below table
10 µW to 100 µW
±10 x 10
-6
, ±15 x 10
-6
, ±20 x 10
-6
∗1
±15 x 10
-6
, ±20 x 10
-6
(Standard)
∗1
As per below table
Remarks
Fundamental mode 27 MHz < f
≤
32 MHz
Please contact us for inquiries.
Stored as bare product after unpacking
Specified equivalent series must be satisfied.
Specified equivalent series and frequency temperature
characteristics must be satisfied.
Ta = +25 ˚C ±3 ˚C
-20 ˚C to +70 ˚C
Please specify
Operable temperature range , DL = 100 µW
C
L
R
1
C
0
IR
fa
S.R.
10 pF to
∞
As per below table
5.0 pF Max.
500 MΩ Min.
±2 x 10
-6
/ year Max.
±5 x10
-6
Max.
Ta = +25 ˚C ±1 ˚C, first year
100 g dummy (Seiko Epson Standard) drop from 1500 mm height
on to the concrete 3 directions 10 times.
Frequency temperature characteristics
Operable temperature
0 ˚C to +50 ˚C
-10 ˚C to +60 ˚C
-20 ˚C to +70 ˚C
-30 ˚C to +80 ˚C
-40 ˚C to +85 ˚C
Frequency tolerance
±5 x 10
-6
Min.
±7 x 10
-6
Min.
±10 x 10
-6
Min.
±15 x 10
-6
Min.
±20 x 10
-6
Min.
Series resistance (R1)
Frequency
12.0 MHz
≤
f < 13.0 MHz
13.0 MHz
≤
f < 16.0 MHz
16.0 MHz
≤
f < 20.0 MHz
20.0 MHz
≤
f
≤
27.0 MHz
(Unit: mm)
Series resistance
70
Ω
Max.
60
Ω
Max.
50
Ω
Max.
40
Ω
Max.
(Unit: mm)
External dimensions
Recommended soldering pattern
#4
#3
#3
2.0
#4
3.0
2.5±0.1
0.7
0.8
#1
4.0±0.1
#2
#2
0.9±0.1
0.9
#1
Internal connection
#4
#3
1.6
1.4
#1
#2
29
1.15
PCB Design
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