Features
● Package size: 2.0 5 x 1.2 mm, t = 0.6 mm Max.
● Nominal frequency range: 32.768 kHz
● Frequency tolerance: ±20 x 10
-6
(+25 °C ± 5 °C)
● Operating temperature: -40 °C to +105 °C
● ESR: 35 kΩ Typ. (+25 °C)
50 kΩ Max. (-40 °C to +85 °C)
60 kΩ Max. (-40 °C to +105 °C)
Applications
● Wearable products
● Low power MCUs for sub-clock
● Wireless modules for sub-clock
Description
Outline Drawing and Terminal Assignment Typical Performance
n = 10
Pin Connection
#1 X'tal
#2 X'tal
Low ESR 50 kΩ Max. 32.768 kHz Crystal Unit: FC2012AN
Low ESR
0.85
2.05±0.1
0.5
#1
#2
1. 2±0.1
0.6 Max.
1.0
0.1
35 kΩ Typ.
at +25 °C
#1
#2
Internal
Connection
The FC2012AN is a 32.768 kHz crystal unit with low ESR in compact package. This is equipped with a
fully redesigned element based on our design and production technology know-how for tuning-fork
crystal devices built up over many years. It is ideal for applications that require low current consumption,
such as the expected growth of the IoT. It supports an operating temperature range of up to +105 °C.
Epson is a leading supplier of kHz-band crystal units and offers a lineup of oscillators with built-in
oscillator circuit ICs and real-time clock modules with built-in real-time clock ICs, in addition to crystal
units. Epson is committed to providing the lowest power solution for our customers.
FC2012AN
(2.05 x 1.2 mm, t = 0.6 mm Max.)
Page 1 / 7 Docment No FC2012AN_E_Ver1.2
[ 1 ] Product Number / Product Name
(1-1) Product Number
X1A000171xxxx18 (Please contact Epson for details)
(1-2) Product Name (Standard Form)
FC2012AN 32.768000kHz 12.5 +20.0-20.0
① ② ③ ④
①Model ②Frequency ③Load capacitance (pF) ④Frequency tolerance (x10
-6
, +25 °C)
[ 2 ] Absolute Maximum Ratings
Min. Typ. Max.
Storage temperature range T_stg -55 - +125 °C
Maximum level of drive GL - - 0.5 μW
[ 3 ] Operating Conditions
Min. Typ. Max.
Operating temperature range T_use -40 - +105 °C
Level of drive DL 0.01 0.1 0.5 μW
Load capacitance CL pF
Please contact us for other CL
values
[ 4 ] Static Characteristics
Item Symbol Unit Condition / Remarks
Nominal frequency range f_nom kHz
Frequency tolerance f_tol
x10
-6
T_use = +25 °C ± 3 °C
DL = 0.1 μW
Does not include
frequency aging
Turnover temperature Ti °C
Parabolic coefficient B
x10
-6
/ °C
2
Motional capacitance C1 fF
Shunt capacitance C0 pF
Load capacitance CL pF
Isolation resistance IR MΩ
Frequency aging f_age
x10
-6
T_use = +25 °C,
First year, DL = 0.1 μW
Item
Symbol
Rating value
Unit
Note
Specifications
Item
Symbol
Rating value
Unit
Note
9, 12.5
32.768
±20
Motional resistance
(ESR)
R1
35 Typ.
(+25 °C)
+25 ± 5
-0.04 Max.
Measuring instrument:
Keysight 4294A
DL = 0.5 μW
50 Max.
(-40 °C to +85 °C)
60 Max.
(-40 °C to +105 °C)
kΩ
8.4 Typ.
1.6 Typ.
9, 12.5
200 Min.
±3
Page 2 / 7 Docment No FC2012AN_E_Ver1.2