Item	Symbol	Specifications		Condition/Remarks
Item	Symbol	FC-12M	FC-12M TYPE	Condition/Remarks
Nominal frequency range	f_nom	32.768kHz	32kHz to 77.5kHz	Please contact us for inquiries regarding available frequency.
Storage temperature	T_stg	-55 °C to +125 °C		Store as bare product
Operating temperature	T_use	-40 °C to +85 °C
Level of drive	DL	0.5 µW Max.
Frequency tolerance (standard)	f_tol	±20 × 10^-6 ±30 × 10^-6		+25 °C,DL=0.1 µW Please ask for tighter tolerance
Turnover temperature	Ti	+25 °C±5 °C
Parabolic coefficient	B	-0.04 × 10^-8/ °C² Max
Load capacitance	CL	12.5pF		Please contact us except 12.5pF
Motional resistance (ESR)	R1	90 kΩ Max.	90 kΩ to 65kΩ
Motional capacitance	C1	6.4 fF Typ.	7.0 fF to 2.7fF
Shunt capacitance	C0	1.3 pF Typ.	1.6 pF to 0.8pF
Frequency aging	f_age	±3 ×10^-6 / year Max		+25 °C, First year

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