FC-12D (kHz Range Crystal Units)

FC-12D

FC-12M

  • Frequency range
    32.768 kHz (32 kHz to 77.5kHz)
  • External dimensions
    2.05× 1.25 × 0.35 mm...FC-12D
    2.05× 1.2 × 0.6 mm...FC-12M
  • Overtone order
    Fundamental
  • Applications
    Smart card...FC-12D
    Small Communication device...FC-12M

Specifications

Item Symbol Specifications Condition/Remarks
FC-12D FC-12M
Nominal frequency range f_nom 32.768kHz 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 0.25µW Max. 0.5 µW Max.
Frequency tolerance (standard) f_tol ±20×10-6 ±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 7pF,9pF,12.5pF 12.5pF Please specify
Motional resistance
(ESR)
R1 75 kΩ Max. 90 kΩ Max. 90 kΩ to 65kΩ
Motional capacitance C1 3.7 fF Typ. 6.4 fF Typ. 7.0 fF to 2.7fF
Shunt capacitance C0 0.8 pF Typ. 1.3 pF Typ. 1.6 pF to 0.8pF
Frequency aging f_age ±3 ×10-6 / year Max +25 °C, First year

Product name (Standard form)name

External dimensions

FC-12D

dimention

FC-12M

dimension

(Unit: mm)


Footprint (Recommended)

FC-12D

dimention

FC-12M

footprint

(Unit: mm)

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