Features
● Package size: 3.2 x 1.5 mm, t = 0.9 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
● Wireless Modules for Sub-clock
● Wearable Products
● Low Power MCUs for Sub-clock
● Battery Powered IoT Products
Description
Outline Drawing and Terminal Assignment Typical Performance
Pin Connection
#1 X'tal
#2 X'tal
Low ESR 50 kΩ Max. 32.768 kHz Crystal Unit: FC3215AN
Low ESR
#1
#2
Internal
Connection
FC3215AN
(3.2 x 1.5 mm, t = 0.9 mm Max.)
1.7
3.2±0.1
0.65
#1
#2
1. 5±0.1
0.9 Max.
1.3
0.15
FC3215AN is a low ESR and compact 32.768 kHz crystal unit that has a robust Pb-free
metal lid + seam sealed package.
It is equipped with a newly redesigned crystal element based on our in-house design and production
technology expertise of tuning-fork crystal devices over the decades. It is ideal for applications that
require low current consumption, such battery powered IoT devices .
It also supports an operating temperature range of up to +105 °C.
Page 1 / 8 Spec No FC3215AN_E_Ver1.1
[ 1 ] Product Number / Product Name
(1-1) Product Number
�� X1A000161xxxx16 (Please contact Epson for details)
(1-2) Product Name (Standard Form)
FC3215AN 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
[ 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
This is 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
1.6 Typ.
9, 12.5
200 Min.
±3
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.
32.768
±20
Motional resistance
(ESR)
R1
35 Typ.
(+25 °C)
+25 ± 5
-0.04 Max.
Specifications
Item
Symbol
Rating value
Unit
Note
Item
Symbol
Rating value
Unit
Note
Page 2 / 8 Spec No FC3215AN_E_Ver1.1