CFSKN X Series FM CERAMIC FILTERS is a low loss X series FM ceramic filter produced by TOKO America, Inc.
The CFSKN X Series from TOKO provides low insertion loss ceramic filters designed for cordless telephones, car radios, portable radios and wireless data communication equipment. The guide outlines the series' compact, low‑profile design, high selectivity, low spurious response and lead‑free terminations.
Key data include a standard center frequency of 10.7 MHz, an applicable range of 10.3 MHz – 11.5 MHz, various color‑coded frequency options, dimensions up to 6 mm × 34 mm, and test conditions such as an input impedance below 15 pF. The document also provides a part‑number table with bandwidth and insertion loss values.
| Standard center frequency | 10.7 MHz |
|---|---|
| Applicable center frequency range | 10.3 MHz – 11.5 MHz |
| Center frequency tolerance | Standard +30 kHz; +25 kHz and +20 kHz also available |
| Dimensions | 6 mm × 34 mm (max) |
| Test input impedance | < 15 pF |
The standard center frequency is 10.7 MHz.
The filters are available for center frequencies from 10.3 MHz to 11.5 MHz.
A filter with a center frequency of 10.70 MHz uses the "None" color code.