Crystal unit
Product Number
MC-306 : Q1xMC3062xxxx00
kHz RANGE CRYSTAL UNIT
MC-306 / MC-306 TYPE
•Frequency range
:
:
:
:
:
MC-306··· 32.768 kHz
MC-306 TYPE··· 20 kHz to 120 kHz
8.0 × 3.8 × 2.54 mm
Fundamental
Clock and Microcomputer
•Thickness
•Overtone order
•Applications
Specifications (characteristics)
Specifications
Item
Symbol
Conditions / Remarks
MC-306
32.768 kHz
MC-306 TYPE
20 kHz to 120 kHz
-55 C to +125 C
Nominal frequency range
Storage temperature
Operating temperature
Level of drive
Frequency tolerance (standard)
Turnover temperature
Parabolic coefficient
Load capacitance
f_nom
T_stg
T_use
DL
f_tol
Ti
Please contact us about available frequencies.
Storage as single product.
-40 C to +85 C
1.0 W Max.
20 10-6, 50 10-6
50 10-6, 100 10-6
+25 C, DL=0.1 W
+25 C 5 C
B
CL
•0.04 × 10•6 / °C2 Max.
6 pF to (standard :12.5 pF)
Please specify
Motional resistance (ESR)
Motional capacitance
Shunt capacitance
R1
C1
C0
f_age
50 k Max.
As per table below
4.0 fF ~ 0.6 fF
1.8 fF Typ.
0.9 pF Typ.
2.0 pF ~ 0.6 pF
Frequency aging
3 10-6 / year Max.
5 10-6 / year Max.
+25 C, First year
MC-306 TYPE Motional resistance (ESR)
Frequency
Motional resistance
20 kHzf_nom< 31.2 kHz
55 k Max.
31.2 kHzf_nom< 40 kHz
35 k Max.
40 kHzf_nom< 90 kHz
20 k Max.
90 kHzf_nom120 kHz
12 k Max.
Product name
MC-306 32.768000kHz 12.5 +20.0-20.0
(Standard form)
①
①Model
②
③
④
②Frequency
③Load capacitance(pF) ④Frequency tolerance(× 10-6, +25 C)
External dimensions
(Unit:mm)
.
8.0 Max.
#3
#2
#4
Internal connection
(TOP VIEW)
32.768 k
571
#3
#4
E
#1
#1
#2
0.5
1.9
5.5
(0.9)
(0.9)
Do not connect #2 and #3 to external device.
The metal case inside of the molding compound may be exposed on the top or bottom of this product.
This purely cosmetic and does not have any effect on quality, reliability or electrical specs.
Footprint (Recommended)
(Unit:mm)
5.5
1.3