27
Crystal unit
Specifications (characteristics)
Recommended soldering patternExternal dimensions
(Unit: mm) (Unit: mm)
#4 #3
#1
2.54 2.54 1.09 1.09
3.30
#2
4.19
4.6 Max.
0.2 Min. 5.08 Max.
13.46 Max.
12.70
20.000M
5251AE
Internal connection in MA-505
Internal connection in MA-506
#4 #3
#1 #2
#4 #3
#1 #2
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
4.1 7.0 4.1
4.1 7.0 4.1
2.1 2.1 5.6
1.5
MA-506
MA-505
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.
Item
Nominal frequency range
Temperature
range
Drive level
Soldering condition
Frequency tolerance (standard)
Frequency temperature characteristics
(standard)
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
Shock resistance
Symbol
f
TSTG
TOPR
GL
DL
TSOL
∆f/f
CL
R1
C0
IR
fa
S. R.
Specifications
4.000 MHz to 29.999 MHz ∗1
26.000 MHz to 64.000 MHz
-55 °C to +125 °C
-20 °C to +70 °C
2 mW Max.
10 µW to 100 µW
Twice at under +260 °C within 10 s
or under +230 °C within 3 min.
±50 x 10-6
Under 5.5 MHz: ±50 x 10-6
Over 5.5 MHz: ±30 x 10-6
Fundamental: 10 pF to ∞. Over tone: 5 pF to ∞
As per below table
5 pF Max.
500 MΩMin.
±5 x 10-6/year Max.
±10 x 10-6 Max.
Remarks
Fundamental mode
3rd overtone mode
Stored as bare product after unpacking
Please contact us on availability of -40 °C to +85 °C
Only crystal oscillation is guaranteed
Ta=+25 °C±3 °C, DL=100 µW
-20 °C to +70 °C, DL=100 µW
Please specify
-20 °C to +70 °C, DL=100 µW
Ta=+25 °C±3 °C, first year
Three drops on a hard board from 750 mm or excitation test
with 29400 m/s2x 0.3 ms x 1/2 sine wave x 3 directions
∗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 ΩMax.
5.5 ≤f < 6.0
100 ΩMax.
6.0 ≤f < 10.0
80 ΩMax.
10.0 ≤f < 12.0
60 ΩMax.
12.0 ≤f < 16.0
50 ΩMax.
16.0 ≤f < 30.0
40 ΩMax.
26.0 ≤f ≤36.0
100 ΩMax.
36.0 < f ≤64.0
80 ΩMax.
3rd overtone modeFundamental mode
Storage temperature
Operating temperature
Maximum drive level
Recommended drive level
Actual size
1
Part Numbering System
Standard Crystals (AT Strip Crystal)
MA-406 25.0000M C 0-
Crystal Package Type:
MA-505: 4pin “J” lead SMD, 4.57mm Height
MA-506: 4pin “J” Lead SMD, 4.57mm Height
MA-406: 4pin “J” Lead SMD, 3.65mm Height
Frequency Range:
M: In MHz to 4 Decimal Places
4.000, 4.032, 4.096, 4.194304, 4.433619, 4.500, 4.800,
4.842673, 4.9152MHz
5.500 ~ 64.000MHz
Except 8.0001 ~ 8.1999MHz
26.000 ~ 29.999MHz : If not specified, 3rd O/T will
be delivered.
Frequency Tolerance@25C
B or Blank: +/-50ppm(Std)
Load Capacitance:
B: 16.0pf
C: 18.0pf
D: 22.0pf
F: Series
G: 20.0pf
H: 32.0pf
K: 10.0pf
W: 12.0pf
AB: 30.0pf
AD: 50.0pf
Packaging
Tape and Reel
0: 1000pcs per reel
NOTE:
If requiring a load capacitance other than the above
listed, please contact your EEA representative for
assistance.
