Crystal unit
SMD HIGH-FREQUENCY CRYSTAL UNIT
MA-406
• High-density mounting-type SMD.
• Excellent heat-resistance and environment capability.
• Cover a wide frequency range, from 4 MHz to 64 MHz.
Actual size
Specifications (characteristics)
Item
Symbol
Specifications
4.000 MHz to 29.999 MHz
26.000 MHz to 64.000 MHz
-55 °C to +125 °C
Remarks
∗1
Fundamental mode
3rd overtone mode
Nominal frequency
f
TSTG
TOPR
GL
Storage temperature
Stored as bare product after unpacking
Please contact us on availability of -40 °C to +85 °C
Only crystal oscillation is guaranteed
Temperature
range
Operating temperature
Maximum drive level
-20 °C to +70 °C
2 mW
Drive level
Recommended drive level
10 µW to 100 µW
DL
Twice at under +260 °C within 10 s
or under +230 °C within 3 min.
TSOL
Soldering condition
-6
∆f/f
50 x 10
Frequency tolerance (standard)
Ta=+25 °C 3 °C
-20 °C to +70 °C
-6
Under 5.5 MHz: 50 x 10
Frequency temperature characteristics
(standard)
-6
Over 5.5 MHz: 30 x 10
Fundamental: 10 pF to ∞
Over tone: 5 pF to ∞
As per table below
5 pF Max.
Load capacitance
Please specify
CL
R1
C0
IR
fa
-20 °C to +70 °C , DL=100 µW
Series resistance
Shunt capacitance
Insulation resistance
Aging
500 MΩ Min.
-6
5 x 10 / year
Ta=+25 °C 3 °C , first year
T
hree drops on a hard board from 750 mm or excitation test
-6
Shock resistance
S.R.
10 x 10 Max.
2
with 29400 m/s x 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 form 4.0 MHz to less than 5.5 MHz" on page 21.
26.000 MHz ≤ f : If not specified, 3rd overtone will be delivered.
Metal may be exposed on the top of this product. This won't affect any quality, reliability or electrical spec.
Series resistance
Frequency (MHz)
Series resistance (Ω)
Oscillation mode
4.0 ≤ f < 5.5
150 Ω Max.
5.5 ≤ f < 6.0
100 Ω Max.
36.0 < f ≤ 64.0
80 Ω Max.
3rd overtone mode
(Unit: mm)
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
60 Ω Max.
50 Ω Max.
40 Ω Max.
100 Ω Max.
Fundamental mode
(Unit: mm)
External dimensions
Recommended soldering pattern
11.7 Max.
Internal connection
#4
#3
#2
#4
#3
1.8
7.8
1.8
20.000M
E
572
#1
#2
#1
0.7
9.6
2.1
(1.2)
(1.2)
Do not connect #2 and #3 external device.
25