Crystal unit
Epson Toyocom
Product Number (please contact us)
MC-306
MC-405
MC-406
: Q1xMC3061xxxx00
: Q1xMC4051xxxx00
: Q1xMC4061xxxx00
kHz RANGE CRYSTAL UNIT
SMD
MC-306
MC-405
/
MC-406
•Frequency range
•Thickness
:
:
32.768 kHz (20 kHz to 165 kHz)
8.0 × 3.8 × 2.54 mm ···MC-306
10.41 × 4.06 × 3.6 mm ···MC-405 / 406
Fundamental
Actual size
MC-306
•Overtone order
•Applications
:
:
MC-405 / 406
Clock and Microcomputer
Specifications (characteristics)
Item
Nominal frequency range
Storage temperature
Operating temperature
Level of drive
Frequency tolerance (standard)
Turnover temperature
Parabolic coefficient
Load capacitance
Symbol
f_nom
T_stg
T_use
DL
f_tol
Ti
B
Specifications
20 kHz to 165 kHz
Conditions / Remarks
Please contact us regarding available frequencies
Store as bare product.
32.768 kHz
-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, DL=0.1 μW
+25 °C ±5 °C
-0.04 × 10-6 / °C2 Max.
CL
6 pF to ∞ (standard :12.5 pF)
Please specify
Motional resistance (ESR)
R1
50 kΩ Max.
As per below table
1.8 fF Typ.
2.0 fF Typ.
0.9 pF Typ.
MC-306
MC-405 / 406
MC-306
MC-405 / 406
+25 °C, First year
Motional capacitance
C1
4.0 fF to 0.6 fF
Shunt capacitance
Frequency aging
C0
2.0 pF to 0.6 pF
±5 × 10-6 / year Max.
0.85 pF Typ.
f_age
±3 × 10-6 / year Max.
Motional resistance (ESR)
Frequency
Motional resistance
20 kHz≤f_nom< 31.2 kHz 31.2 kHz≤f_nom< 40 kHz
40 kHz≤f_nom< 90 kHz
20 kΩ Max.
90 kHz≤f_nom< 130 kHz
12 kΩ Max.
130 kHz≤f_nom≤165 kHz
10 kΩ Max.
55 kΩ Max.
35 kΩ Max.
External dimensions
(Unit:mm)
.
Internal connection in MC-405
(TOP VIEW)
MC-405 / 406
MC-306
8.0 Max.
#4
#1
#3
#2
#3
#2
#4
Internal connection
(TOP VIEW)
#3
#2
#4
32.768 k
6571A
32.768 k
E
Internal connection in MC-406
(TOP VIEW)
#3
#4
E
571
#1
#3
#4
9.60
10.41 Max.
#1
#1
#2
#1
#2
0.5
0.51
0.51
1.9
5.5
(0.9)
(0.9)
2.54
2.54
2.29
Do not connect #2 and #3 to external device.
Do not connect #2 and #3 of MC-406 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.
The first digit of No. means:
5×××× MC-405
6×××× MC-406
Footprint (Recommended)
(Unit:mm)
MC-306
MC-405
MC-406
4.1
3.9
4.1
4.1
3.9
4.1
1.3
4.2
1.3
http://www.epsontoyocom.co.jp