Crystal unit
SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT
MC-405/406
Product number (please refer to page 1)
Q1 xMC 4 0 5 x x x x x 0 0
Q1 xMC 4 0 6 x x x x x 0 0
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High-density mounting-type SMD.
Photolithography finished allows uniform, stable performance.
Excellent environmental capability.
Capable of covering low-frequency range from 20 kHz to 165 kHz.
Suitable for time keeping of clock and microcomputer.
Actual size
Specifications (characteristics)
Item
Symbol
32.768 kHz
Specifications
Remarks
Nominal frequency range
f
T
STG
T
OPR
GL
∆f/f
θT
a
C
L
R
1
C
1
C
0
IR
fa
20.000 kHz to 165.000 kHz
-55 °C to +125 °C
-40 °C to +85 °C
1.0 µW Max.
Stored as bare product after unpacking
Storage temperature
Temperature range
Operating temperature
Maximum drive level
Frequency tolerance (standard)
Turnover temperature (frequency)
Temperature coefficient (frequency)
Load capacitance
Series resistance
Motion capacitance
Shunt capacitance
Insulation resistance
Aging
±20 x 10
-6
, ±50 x 10
-6
±50 x 10
-6
, ±100 x 10
-6
+25 °C ±5 °C
Ta=+25 °C, DL=0.1 µW
-0.04 x 10
-6
/ °C
2
Max.
6 pF to
∞
(Standard : 12.5 pF)
50 kΩ Max.
2.0 fF Typ.
0.85 pF Typ.
500 MΩ Min.
±3 x 10 /year Max.
-6
Please specify
For details, refer to page 13
55 kΩ to 10 kΩ
4.0 fF to 0.6 fF
2.0 pF to 0.6 pF
±5 x 10
-6
/year Max.
Ta=+25 °C±3 °C, first year
Three drops on a hard board from 750 mm
Shock resistance
S.R.
±5 x 10
-6
Max.
or excitation test with 29400 m/s
2
x 0.3 ms x
1/2 sine wave x 3 directions
External dimensions
4.06 Max.
#4
(Unit: mm)
Recommended soldering pattern
MC-405
(Unit: mm)
Internal connection in MC-406
#4
#1
#3
#2
4.1
3.9
4.1
9.6
10.41 Max.
MC-406
3.6 Max.
3.15
0.8 1.5
0.51
2.29
4.1
3.9
4.1
0.51
1.5
2.54
2.54
Do not connect
#2 and #3 of MC-406 to external device.
The first digit of No. means: 5XXXX MC-405
6XXXX MC-406
21
0.2 Min.
4.1
#1
32.768k
E 6571A
Internal connection in MC-405
#3
#4
#1
#3
#2
#2
EPSON [ EPSON COMPANY ]
