MC-306 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – kHz RANGE CRYSTAL UNIT SMD

Crystal unit
kHz RANGE CRYSTAL UNIT
SMD
MC - 306
MC - 405 / MC - 406
•Frequency range
•Thickness
•Overtone order
•Applications
: 32.768 kHz (20 kHz to 165 kHz)
: 2.54 mm Max.(MC-306)
3.60 mm Max.(MC-405 / 406)
: Fundamental /Overtone (307.2 kHz)
: Clock and Microcomputer
Actual size
MC-306
MC-405 / 406
Specifications (characteristics)
Item
Symbol
Nominal frequency range
Temperature Storage temperature
range
Operating temperature
Level of drive
Frequency tolerance (standard)
Turnover temperature
Parabolic coefficient
Load capacitance
Motional resistance (ESR)
Motional capacitance
f
T_stg
T_use
DL
f_tol
Ti
B
CL
R1
C1
Shunt capacitance
Frequency aging
C0
f_age
Specifications
32.768 kHz
20 kHz to 165 kHz
307.2 kHz(MC-405 / 406)
-55 °C to +125 °C
-40 °C to +85 °C
1.0 µW Max.
±20 × 10^-6, ±50 × 10^-6
±50 × 10^-6, ±100 × 10^-6
+25 °C ±5 °C
-0.04 × 10^-6 / °C² Max.
6 pF to ∞ (standard :12.5 pF)
50 kΩ Max.
55 kΩ to 6 kΩ
1.8 fF Typ.
2.0 fF Typ.
4.0 fF to 0.6 fF
0.9 pF Typ.
0.85 pF Typ.
±3 × 10^-6 / year Max.
2.0 pF to 0.6 pF
±5 × 10^-6 / year Max.
Remarks
Please contact us regarding available frequencies
Store as bare product after unpacking
+25 °C, DL=0.1 µW
Please specify
As per below table
MC-306
MC-405 / 406
MC-306
MC-405 / 406
+25 °C, First year
Motional resistance (ESR)
Frequency
Motional resistance
20 kHz≤f< 31.2 kHz
55 kΩ Max.
31.2 kHz≤f< 40 kHz
35 kΩ Max.
40 kHz≤f< 90 kHz
20 kΩ Max.
90 kHz≤f< 130 kHz
12 kΩ Max.
130 kHz≤f≤165 kHz
10 kΩ Max.
307.2 kHz
6 kΩ Max.
External dimensions
.
(Unit:mm)ç
MC-306
8.0 Max.
#4
#3
32.768 k
E 571
#1
#2
Internal connection
#4
#3
#1
#2
MC-405 / 406
#4
32.768 k
#3
E 6571A
#1
#2
9.60
10.41 Max.
Internal connection in MC-405
#4
#3
#1
#2
Internal connection in MC-406
#4
#3
#1
#2
0.5
5.5
1.9
(0.9)
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.
(0.9)
Footprint (Recommended)
0.51
0.51
2.54
2.54
2.29
Do not connect #2 and #3 of MC-406 to external device.
The first digit of No. means: 5×××× MC-405
6×××× MC-406
(Unit:mm)ç
MC-306
MC-405
MC-406
1.3
4.2
1.3
4.1
3.9
4.1
4.1
3.9
4.1
http://www.epsontoyocom.co.jp
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