FKT Series Thru-Hole Tuning Fork

Fox Electronics' FKT series of thru-hole tuning forks feature miniature packages, cold weld design, long-term stability, and tight tolerances

Image of Fox Electronics FKT Series Thru-Hole Tuning Fork Fox Electronics expands its tuning fork crystal selection with Digi-Key. The FKT27LF and FKT38LF are initially offered in two different through-hole package sizes FKT26 (2.0 mm x 6.0 mm) and FKT38 (3.0 mm x 8.3 mm).

The key features of this series are miniature packages, cold weld design, long term stability, and tight tolerance.

Specifications

  • Frequency: 32.768 kHz
  • Frequency tolerance @ 25°C: ±20 PPM
  • Frequency stability temperature coefficient: -0.04 PPM / (Δ°C)2
  • Temperature range
    • Turnover: +20°C ~ +30°C
    • Operating: -20°C ~ +60°C
    • Storage: -30°C ~ +70°C
  • Equivalent series resistance
  • FKT26LF: 50 kΩ
  • FKT38LF: 35 kΩ
  • Load capacitance: 12.5 pF
  • Insulation resistance @ 100 VDC: 500 MΩ Min.
  • Drive level: 1.0 µW
  • Aging per year: ±3 PPM
Published: 2009-09-19