17
Crystal unit
Specifications (characteristics)
External dimensions
(Unit: mm)
Recommended soldering pattern
(Unit: mm)
Internal connection
#1
#2
#4
#3
#4
#1
#3
#2
0.2
0.2
0.2
0.25
0.4
0.4
0.15
1.4 Max.
1.2
1.2
5.1
0.6
0.6
0.3
#1
#2
#4
#3
0.1
0.1
6.7
7.0 Max.
1.5 Max.
0.3
0.55
0.3
E A 9 9
1.2
1.5
1.0
1.5
1.2
3.88
Do not connect #2 and #3 to external device.
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
0.4
5.08
1.3
1.5 Max.
Internal connection
#4
#3
#1
#2
(0.75)
(0.75)
1.6
#4
#3
#1
#2
2.5
3.3 Max.
7.1 Max.
E A 8 9
MC-146
MC-156
MC-146
MC-156
MC-146/156
High-density mounting-type SMD of 1.4 mm thickness.(MC-146)
Small packaging area and light weight.
Excellent environmental capability.
Most suitable for small communications devices.
Item
Nominal frequency
Storage temperature
Operating temperature
Maximum drive level
Frequency tolerance(standard)
Peak temperature(frequency)
Temperature coefficient(frequency)
Load capacitance
Series resistance
Motional capacitance
Shunt capacitance
Insulation resistance
Aging
Shock resistance
Symbol
f
T
STG
T
OPR
GL
f/f
T
a
C
L
R
1
C
1
C
0
IR
fa
S.R.
Specifications
32.768 kHz
32.000
kHz to 100.000 kHz
-55 C to +125 C
-40 C to +85 C
1.0 W Max.
20 x 10
-6
, 50 x 10
-6
50 x 10
-6
, 100 x 10
-6
+25 C 5 C
-0.04 x 10
-6
/ C
2
Max.
7 pF, 12.5 pF
65 k Max.
65 k to 25 k
1.9 fF Typ.
2.5 fF to 0.6 fF
0.8 pF Typ.
1.2 pF to 0.5 pF
500 M Min.
3 x 10
-6
/year Max.
5 x 10
-6
Max.
Remarks
please contact us for inquiries
about the available frequencies
Stored as bare product after unpacking
Ta=+25
C, DL=0.1 W
Please specify
Ta=+25
C 3
C, first year
100 g dummy (Seiko Epson Standard) drop from 1500 mm height
on to the concrete 3 directions 10 times.
Actual size
THIN SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT
Temperature
range
Operating drive level 0.5 W Max.
Product number (please refer to page 1)
Q1 xMC1 4 6 x x x x x 0 0
Q1 xMC1 5 6 x x x x x 0 0
MC-146
MC-156
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