Crystal unit
kHz RANGE CRYSTAL UNIT
LOW PROFILE SMD
MC-146
/
156
•Frequency range
•Thickness
:
32.768 kHz (32 kHz to 100 kHz)
1.4 mm Max. (MC-146)
:
:
:
:
:
1.5 mm Max. (MC-156)
Fundamental
Small communications devices
Contains high melting temperature type
solder (Pb85 %) exempted by RoHS directive.
•Overtone order
•Applications
•Lead(Pb)-free
Actual size
MC-146
MC-156
Specifications (characteristics)
Item
Symbol
f
Specifications
32 kHz to 100 kHz
-55 °C to +125 °C
Remarks
Please contact us for inquiries regarding available
frequencies
Nominal frequency range
32.768 kHz
Storage temperature
Operating temperature
T_stg
Stored as bare product after unpacking
Temperature
range
T_use
DL
-40 °C to +85 °C
1.0 µW Max.
Level of drive
Operating Drive level 0.5 µW Max.
+25 °C, DL=0.1 µW
Frequency tolerance (standard)
Turnover temperature
Parabolic coefficient
f_tol
Ti
20 × 10-6, 50 × 10-6
50 × 10-6, 100 × 10-6
+25 °C 5 °C
-0.04 × 10-6 / °C2 Max.
B
Load capacitance
CL
7 pF, 12.5 pF
Please specify
Motional resistance (ESR)
Motional capacitance
Shunt capacitance
R1
C1
C0
65 kΩ Max.
65 kΩ to 25 kΩ
2.5 fF to 0.6 fF
1.2 pF to 0.5 pF
1.9 fF Typ.
0.8 pF Typ.
Frequency aging
f_age
3 × 10-6 / year Max.
+25 °C, First year
External dimensions
.
MC-146
#4
MC-156
#4
7.1 Max.
Internal connection
#3
#2
Internal connection
#3
#2
#4
#4
#3
#3
E A 9 9
E A 8 9
#1
6.7
#2
#1
#1
#2
7.0 Max.
0.1
0.1
#1
0.4
0.4
0.2
0.4
5.08
0.2
(0.75)
1.6
(0.75)
#1
#4
#2
#3
0.2
Do not connect #2 and #3 to external device.
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
MC-146
MC-156
1.2
1.2
5.1
1.2
3.88
1.2
http://www.epsontoyocom.co.jp
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