Ferroxcube CST cores (ferrite tubes) are Ferroxcube CST cores (ferrite tubes) are suitable for EMI-suppression and device protection from high-frequency interference, appearing in the equipment over AC power line or due to devices closely arranged to each other.
Geomatrical dimensions and characteristics
When choosing CST cores one of the main features is inside ferrite tube diameter, which must differ from wire diameter and show maximally possible impedance in required frequence band (possible band of general high-frequency interference).
Ferrite cores CST, particularly on the base of Mn-Zn materials with low electrical resistivity are recommended to be to attached to interface cables and power cables.
The full list of Ferroxcube CST cores is represented below.
| The order number | Dimensions, mm | Typical impedance value * | |||
| D | d | L | 25 MHz | 100 MHz | |
| CST7,8/5,3/9,8-3S4 | 7,8 ±0,2 | 5,3 +0,3 | 9,8 ±0,2 | 33 | 50 |
| CST8/5,3/10-3S4 | 8-0,4 | 5,3 +0,3 | 10 0,4 | 36(2) | 50 |
| CST8,3/3,5/10-3S4 | 8,3-0,4 | 3,5 +0,3 | 10 0,6 | 70 | 96 |
| CST9,5/4,8/4,8-4S2 | 9,5 ±0,25 | 4,75 ±0,25 | 4,8 ±0,2 | 18 | 35 |
| CST9,5/4,8/6,4-4S2 | 9,5 ±0,25 | 4,75 ±0,25 | 6,35 ±0,35 | 23 | 50 |
| CST9,5/4,8/9,5-4S2 | 9,5 ±0,25 | 4,75 ±0,15 | 9,5 ±0,3 | 40 | 70 |
| CST9,5/4,8/10-4S2 | 9,5 ±0,25 | 4,75 ±0,15 | 10,4 ±0,25 | 53 | 80 |
| CST9,5/4,8/13-4S2 | 9,5 ±0,25 | 4,75 ±0,15 | 12,7 ±0,5 | 60 | 95 |
| CST9,5/4,8/19-4S2 | 9,5 ±0,25 | 4,75 ±0,15 | 19,05 ±0,7 | 100 | 145 |
| CST9,5/5,1/15-3S4 | 9,5 ±0,3 | 5,1 ±0,15 | 14,5 ±0,45 | 66 | 110 |
| CST9,5/5,1/15-4S2 | 9,5 ±0,3 | 5,1 ±0,15 | 14,5 ±0,45 | 66 | 110 |
| CST9,7/5/5,1-4S2 | 9,65 ±0,25 | 5 ±0,2 | 5,05-0,45 | 26 | 43 |
| CST14/6,4/5,3-4S2 | 14,3 ±0,45 | 6,35 ±0,25 | 5,3-0,45 | 35 | 60 |
| CST14/6,4/10-4S2 | 14,3 ±0,45 | 6,35 ±0,25 | 10,1 ±0,4 | 70 | 105 |
| CST14/6,4/14-4S2 | 14,3 ±0,45 | 6,35 ±0,25 | 13,8 ±0,4 | 90 | 150 |
| CST14/6,4/15-4S2 | 14,3 ±0,45 | 6,35 ±0,25 | 15 ±0,45 | 100 | 170 |
| CST14/6,4/29-4S2 | 14,3 ±0,45 | 6,35 ±0,25 | 28,6 ±0,75 | 170 | 250 |
| CST14/7,3/29-4S2 | 14,3 ±0,45 | 7,25 ±0,15 | 28,6 ±0,75 | 143 | 215 |
| CST16/7,9/14-4S2 | 16,25-0,75 | 7,9 ±0,25 | 14,3 ±0,35 | 70 | 113 |
| CST16/7,9/29-4S2 | 16,25-0,75 | 7,9 ±0,25 | 28,6 ±0,75 | 130 | 213 |
| CST17/9,5/13-3S4 | 17,45 ±0,35 | 9,53 ±0,25 | 12,7 ±0,5 | 55 | 90 |
| CST17/9,5/13-4S2 | 17,45 ±0,4 | 9,5 ±0,25 | 12,7 ±0,5 | 55 | 88 |
| CST17/9,5/29-3S4 | 17,45 ±0,35 | 9,53 ±0,25 | 28,55 ±0,75 | 125 | 200 |
| CST17/9,5/29-4S2 | 17,45 ±0,35 | 9,53 ±0,25 | 28,55 ±0,75 | 125 | 250 |
| CST17/11/60-3S4 | 17,2-1,2 | 11 ±0,5 | 60-2,5 | 200 | 320 |
| CST19/10/15-4S2 | 19-0,65 | 10,15 ±0,25 | 14,65-0,75 | 70 | 110 |
| CST19/10/29-4S2 | 19-0,65 | 10,15 ±0,25 | 28,6 ±0,75 | 128 | 196 |
| CST19/11/12-3S4 | 19 ±0,4 | 10,6 ±0,3 | 11,5 ±0,4 | 50 | 75 |
| CST26/13/21-4S2 | 25,9 ±0,75 | 12,8 ±0,25 | 21,3 ±0,5 | 110 | 180 |
| CST26/13/29-4S2 | 25,9 ±0,75 | 12,8 ±0,25 | 28,6 ±0,8 | 145 | 225 |
| CST29/19/7,5-4S2 | 29 ±0,75 | 19 ±0,5 | 7,5 ±0,25 | 28 | 47 |
*Minimal guaranteed value of impedance 0,8·Ztyp.
To check the presence of the cores in stockThe structure of ordering core
CST9,5/5,1/15-4S2
CST — core configuration
9,5/5,1/15 — core dimensions (inside and outside diameters, height)
4S2 — core material
