MA-306 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – SMALL SMD HIGH - FREQUENCY CRYSTAL UNIT

SMALL SMD HIGH - FREQUENCY CRYSTAL UNIT
MA-306
• High-density mounting-type SMD.
• Excellent reliability and environment capability.
• Capable of covering a wide frequency range. ( from 17.734 MHz
to 41 MHz)
• 2.54mm thickness is equal to SMD-type IC.
Actual size
Specifications (characteristics)
Item
Symbol
Nominal frequency
f
Temperature
range
Storage temperature TSTG
Operating temperature _TOPR
Drive level
Maximum drive level GL
Recommended drive level _DL
Soldering condition
TSOL
Frequency tolerance (standard)
∆ f/f
Frequency temperature characteristics
(standard)
Load capacitance
CL
Series resistance
R1
Shunt capacitance
C0
Insulation resistance
IR
Aging
fa
Specifications
17.734 MHz to 41.000 MHz
-55˚C to +100˚C
-20˚C to +70˚C
2mW max.
10µW to 100µW
Twice at under 260˚C within 10 sec.
or under 230˚C within 3 min.
±50ppm
±30ppm
10pF to ∞
60 Ω max.
5pF max.
500 MΩ min.
±5ppm/Y max.
Remarks
Fundamental mode
Stored as bare product after unpacking
Only crystal oscillation is guaranteed
Ta=25˚C±3˚C
-20˚C to +70˚C
Please specify
-20˚C to +70˚C, DL=100µW
Ta=25˚C±3˚C, first year
Shock resistance
S.R.
±10ppm max.
Three drops on a hard board from 75 cm or excitation
test with 3000G x 0.3ms x 1/2 sine wave x 3 directions
There are some cases that a parts of the cylindrical capsule of quartz unit expose on the surface of the molding material.
External dimensions
8.0 max.
#4
#3
20.000M
E 572
#1
#2
(Unit: mm)
Recommended soldering pattern ^{(Unit: mm)}
Internal connection
#4
#3
1.3
4.2
1.3
#1
#2
0.5
5.5
Do not connect #2 and #3 to external device.
1.9
(0.9)
(0.9)
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