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
Fox Electronics expands its tuning fork crystal selection with DigiKey. 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