RP-configured noise suppressing flat ferrite cores are intended to suppress radio frequency noises in flat multi-wire (up to 60 wires) cables of FFC or PFC type. Flat construction of RP series cores provides a possibility of accommodation within case of electronic device.
RP series cores are usually used to suppress high-frequency noises and to provide an electromagnetic compatibility of printers, monitors, digital cameras, scanners, fax machines, computer technique.
Nomenclature List
Nomenclature list of RP series ferrite cores:
| Order code | Dimensions | Typical Impedance (Ohms) | Type | Fig. | ||
| RP Material AxBxD (mm) | С (mm) | F (mm) | 25 MHz | 100 MHz | ||
| M1 RP 15.5x4.8x11.4 | 12.7 | 0.6 | 39 | 142 | A | 1-1 |
| L92 RP 23.3x3x7 | 20 | 0.9 | 24 | 83 | B | 2-1 |
| L92 RP 23.3x3x12 | 20 | 0.9 | 36 | 112 | B | 3-1 |
| L92 RP 24.5x4.7x12 | 20 | 0.8 | 44 | 127 | A | 4-1 |
| L92 RP 28.5x6.5x8 | 23.5 | 0.9 | 38 | 115 | A | 1-2 |
| L92 RP 28.5x6.5x1 8 | 23.5 | 0.9 | 69 | 184 | A | 2-2 |
| L92 RP 31x5x12 | 27 | 1.0 | 40 | 120 | A | 3-2 |
| L92 RP 33.5x6.5x1 2 | 27 | 1.4 | 40 | 115 | A | 4-2 |
| L92 RP 33.5x6.5x20 | 27 | 1.4 | 55 | 145 | A | 1-3 |
| L92 RP 38.5x4x12 | 35 | 0.8 | 40 | 113 | A | 2-3 |
| L92 RP 40x6.5x12 | 35 | 1.4 | 38 | 110 | A | 3-3 |
| L92 RP 40x10x12.5 | 32 | 2.0 | 49 | 129 | B | 4-3 |
| L92 RP 45.2x6.5x12 | 40 | 1.4 | 38 | 114 | A | 1-4 |
| L92 RP 49.6x6.5x1 2 | 44 | 1.4 | 38 | 113 | A | 2-4 |
| L92 RP 57.6x6.5x12 | 52 | 1.4 | 41 | 121 | A | 3-4 |
| L92 RP 60x12x12.7 | 48.5 | 2.2 | 46 | 136 | B | 4-4 |
Impedance vs Frequency Dependency
Impedance vs frequency dependency for RP series ferrite cores:
Table data and impedance-frequency dependency graphs shown above are measured in wire section having a diameter of 0.4 mm and a length of 10 cm and passing through corresponding core of RP series. In practical applications of really used flat cables, frequency dependencies may differ from specified above.
