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)
Remarks
Item
Symbol
Specifications
4.000 MHz to 29.999 MHz
26.000 MHz to 64.000 MHz
-55 °C to +125 °C
Fundamental mode
3rd overtone mode
∗1
Nominal frequency range
f
Stored as bare product after unpacking
Please contact us on availability of -40 °C to +85 °C
Only crystal oscillation is guaranteed
Storage temperature
TSTG
TOPR
GL
Temperature
range
Operating temperature
-20 °C to +70 °C
Maximum drive level
Recommended drive level
2 mW Max.
Drive level
DL
10 µW to 100 µW
Twice at under +260 °C within 10 s
or under +230 °C within 3 min.
Soldering condition
TSOL
-6
50 x 10
Ta=+25 °C 3 °C, DL=100 µW
-20 °C to +70 °C, DL=100 µW
Frequency tolerance (standard)
∆f/f
-6
Under 5.5 MHz: 50 x 10
Frequency temperature characteristics
(standard)
-6
Over 5.5 MHz: 30 x 10
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
Fundamental: 10 pF to ∞. Over tone: 5 pF to ∞
Please specify
CL
R1
C0
As per below table
5 pF Max.
-20 °C to +70 °C, DL=100 µW
500 MΩ Min.
IR
fa
-6
Ta=+25 °C 3 °C, first year
5 x 10 /year Max.
Three drops on a hard board from 750 mm or excitation test
-6
2
10 x 10 Max.
with 29400 m/s x 0.3 ms x 1/2 sine wave x 3 directions
Shock resistance
S. R.
∗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)
Series resistance (Ω)
Oscillation mode
4.0 ≤ f < 5.5
150 Ω Max.
5.5 ≤ f < 6.0
100 Ω Max.
6.0 ≤ f < 10.0
80 Ω Max.
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
60 Ω Max. 50 Ω Max. 40 Ω Max. 100 Ω Max.
80 Ω Max.
3rd overtone mode
Fundamental mode
(Unit: mm)
Internal connection in MA-505
(Unit: mm)
External dimensions
Recommended soldering pattern
13.46 Max.
12.70
#4
MA-505
#3
#3
#4
#2
#1
20.000M
Internal connection in MA-506
E
5251A
#1
#2
#4
#3
4.1
7.0
4.1
#2
#1
MA-506
2.54
2.54
1.09
1.09
3.30
4.1
7.0
4.1
Do not connect #2 and #3 of MA-506 to external device.
5XXXX MA-505
The first digit of lot No. means:
6XXXX MA-506
27