Low ESR 50 k Max. 32.768 kHz Crystal Unit: FC2012AN Features Package size: 2.05 x 1.2 mm, t = 0.6 mm Max. Nominal frequency range: 32.768 kHz -6 Frequency tolerance: 20 x 10 (+25 C 5 C) Operating temperature: -40 C to +105 C ESR: 35 k Typ. (+25 C) 50 k Max. (-40 C to +85 C) FC2012AN (2.05 x 1.2 mm, t = 0.6 mm Max.) 60 k Max. (-40 C to +105 C) Applications Wearable products Low power MCUs for sub-clock Wireless modules for sub-clock Description 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. Outline Drawing and Terminal Assign Tment ypical Performance Low ESR 2.05 0.1 n = 10 0.1 0.85 0.5 1 2 35 k Typ. at +25 C Pin Connection Internal 1 X tal Connection 2 X tal 1 2 Page 1 / 8 No FC2012AN E Ver1.1 1. 2 0.1 0.6 Max. 1.0 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 -6 ModelFrequencyLoad capacitance (pF) Frequency tolerance (x10 , +25 C) 2 Absolute Maximum Ratings Rating value Item Symbol Unit Note Min. Typ. Max. Storage temperature range T stg -55 - +125 C Maximum level of drive GL - - 0.5 W 3 Operating Conditions Rating value Item Symbol Unit Note Min. Typ. Max. Operating temperature range T use -40 - +105 C Level of drive DL 0.01 0.1 0.5 W 4 Static Characteristics Specifications Item Symbol Unit Condition / Remarks 32.768 Nominal frequency range f nom kHz T use = +25 C 3 C DL = 0.1 W -6 Frequency tolerance f tol 20 x10 Does not include frequency aging +25 5 Turnover temperature Ti C -6 2 -0.04 Max. Parabolic coefficient B x10 / C 35 Typ. (+25 C) Measuring instrument: Motional resistance 50 Max. Keysight 4294A R1 k (ESR) (-40 C to +85 C) DL = 0.5 W 60 Max. (-40 C to +105 C) 8.4 Typ. Motional capacitance C1 fF 1.6 Typ. Shunt capacitance C0 pF Load capacitance CL 9, 12.5 pF 200 Min. Isolation resistance IR M T use = +25 C, -6 3 Frequency aging f age x10 First year, DL = 0.1 W Page 2 / 8 No FC2012AN E Ver1.1