FC-12D Datasheet, PDF (1/2 Pages) Epson Company – kHz RANGE CRYSTAL UNIT LOW PROFILE SMD

Crystal unit
kHz RANGE CRYSTAL UNIT
LOW PROFILE SMD
FC - 12D / FC - 12M
Frequency range :
External dimensions :
:
Overtone order
:
Applications
:
:
32.768 kHz (32 kHz to 77.5 kHz)
2.05 × 1.25 × 0.35 mm···FC-12D
2.05 × 1.2 × 0.6 mm···FC-12M
Fundamental
Smart card, Small devices···FC-12D
Small devices···FC-12M
Actual size
FC-12D FC-12M
Product Number (please contact us)
FC-12D: X1A000111xxxx00
FC-12M: X1A0000x1xxxx00
Specifications (characteristics)
Item
Nominal frequency range
Storage temperature
Operating temperature
Symbol
f_nom
T_stg
T_use
FC-12D
32.768 kHz
Specifications
FC-12M
32.768 kHz
32 kHz to
77.5 kHz
-55 C to +125 C
-40 C to +85 C
Conditions / Remarks
Please contact us about available
frequencies.
Storage as single product.
Level of drive
Frequency tolerance
(standard)
Turnover temperature
Parabolic coefficient
DL
0.25 W Max.
0.5 W Max.
f_tol
±20 × 10^-6
±20 × 10^-6
±30 × 10^-6
Ti
+25 C ±5 C
B
-0.04  10^-6 / C² Max.
+25 C, DL=0.1 W
Please ask for tighter tolerance
Load capacitance
CL 7 pF, 9pF, 12.5pF
12.5pF
Please specify
Motional resistance (ESR)
R1
75 k Max.
90 k Max. 90 k to 65 k
Motional capacitance
C1
3.7 fF Typ.
6.4 fF Typ. 7.0 fF to 2.7 fF
Shunt capacitance
Frequency aging
C0
f_age
0.8 pF Typ.
1.3 pF Typ. 1.6 pF to 0.8pF
±3 × 10^-6 / year Max.
+25 C, First year
External dimensions
.
FC-12D
A115J
2.05±0.1
0.9
#1
#2
#4
#3
#1
#2
Pin #2 is connected to the
device lid.
Please connect to GND.
Do not connect #4 externally.
FC-12M
E634J
2.05±0.05
1.0
#1
#2
(Unit: mm)
Internal connection
(TOP VIEW)
#1
#2
#3
#4
0.495
Footprint (Recommended)
0.525
(Unit: mm)
FC-12D
0.90 ^0.65
*Do not design any
circuit patterns in the
shaded area.
FC-12M
0.7
1.5
*Do not design any
circuit patterns in the
shaded area.