Crystal unit
SMD HIGH-FREQUENCY CRYSTAL UNIT
MA-505/MA-506
• High-density mounting-type SMD.
• Excellent heat-resistance and environment capability.
• Capable of covering a wide range of frequency range from 4.0 MHz
to 64 MHz.
Actual size
Specifications (characteristics)
Item
Symbol
Remarks
Specifications
∗1
4.000 MHz to 29.999 MHz
Nominal frequency range
f
Fundamental mode
26.000 MHz to 64.000 MHz
3rd overtone mode
Storage temperature
TSTG
-55 °C to +125 °C
Stored as bare product after unpacking
Operating temperature
TOPR
-20 °C to +70 °C
Please contact us on availability of -40 °C to +85 °C
Maximum drive level
GL
2 mW Max.
Only crystal oscillation is guaranteed
Recommended drive level
DL
10 µW to 100 µW
Soldering condition
TSOL
Twice at under +260 °C within 10 s
or under +230 °C within 3 min.
Frequency tolerance (standard)
∆f/f
Temperature
range
Drive level
±50 x 10-6
Ta=+25 °C±3 °C, DL=100 µW
Under 5.5 MHz: ±50 x 10-6
Frequency temperature characteristics
(standard)
-20 °C to +70 °C, DL=100 µW
Over 5.5 MHz: ±30 x 10-6
Load capacitance
Fundamental: 10 pF to ∞.
CL
Series resistance
R1
Over tone: 5 pF to ∞
Please specify
As per below table
-20 °C to +70 °C, DL=100 µW
Shunt capacitance
C0
5 pF Max.
Insulation resistance
IR
500 MΩ Min.
Aging
fa
±5 x 10-6/year Max.
Ta=+25 °C±3 °C, first year
S. R.
±10 x 10-6 Max.
Three drops on a hard board from 750 mm or excitation test
with 29400 m/s2 x 0.3 ms x 1/2 sine wave x 3 directions
Shock resistance
∗1 8.0 MHz < f < 8.2 MHz: Unavailable.
For frequencies below 5.5 MHz, see "Available frequencies from 4.0 MHz to less than 5.5 MHz" on page 21.
26.000 MHz ≤ f : If not specified, 3rd overtone will be delivered.
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.
Oscillation mode
Fundamental mode
External dimensions
(Unit: mm)
13.46 Max.
(Unit: mm)
#2
#3
#1
#2
Internal connection in MA-506
#4
#3
#1
#2
4.1
7.0
4.1
7.0
4.1
MA-506
2.54
Do not connect #2 and #3 of MA-506 to external device.
The first digit of lot No. means: 5XXXX MA-505
6XXXX MA-506
27
1.09
2.1
2.54
0.2 Min.
1.5
2.1
4.6 Max.
4.19
MA-505
5.6
#3
5.08 Max.
#4
20.000M
E
5251A
#1
Recommended soldering pattern
Internal connection in MA-505
12.70
#4
3rd overtone mode
1.09
3.30
4.1
