| Nanocrystalline Toroid
|
Material
|
Turns |
Ohms 1.8 MHz |
Ohms 3.5 MHz |
Ohms 7 MHz |
Ohms 14 MHz |
Ohms 21 MHz | Ohms 28 MHz |
Core Dimensions |
| T60006-L2045-V102 |
500F |
5 |
1240 |
1400 |
1440 |
1165 |
880 |
700 |
48 x 27 x 18mm |
| T60006-L2045-V102 |
500F |
6 |
1630 |
1785 |
1720 |
1240 |
885 |
705 |
48 x 27 x 18mm |
| T60006-L2045-V102 |
500F |
8 |
2300 |
2375 |
2050 |
1300 |
900 |
710 |
48 x 27 x 18mm |
| T60006-L2045-V102 |
500F |
10 |
4465 |
3865 |
2450 |
1280 |
845 |
690 |
48 x 27 x 18mm |
| T60006-L2050-W565 | 500F |
5 |
690 |
850 |
1020 |
1010 |
820 |
650 |
53 x 37 x 23mm |
| T60006-L2050-W565 |
500F |
6 |
920 |
1115 |
1270 |
1100 |
830 |
665 |
53 x 37
x 23mm |
| T60006-L2050-W565 |
500F |
8 |
1380 |
1570 |
1610 |
1180 |
840 |
680 |
53 x 37
x 23mm |
| T60006-L2050-W565 |
500F |
10 |
1765 |
1920 |
1830 |
1285 |
915 |
720 |
53 x 37
x 23mm |
| T60006-L2050-V146 |
500F |
5 |
695 |
890 |
1105 |
1100 |
860 |
975 |
53 x 37 x 23mm |
| T60006-L2050-V146 |
500F |
6 |
930 |
1160 |
1350 |
1170 |
860 |
690 |
53 x 37 x 23mm |
| T60006-L2050-V146 |
500F |
8 |
1380 |
1620 |
1660 |
1205 |
840 |
690 |
53 x 37 x 23mm |
| T60006-L2050-V146 |
500F |
10 |
1765 |
1950 |
1795 |
1200 |
830 |
660 |
53 x 37 x 23mm |
As you can see the model T60006-L2045-V102 outperforms ferrite toroids in common mode impedance at least on lower bands. It provides easily few kilo ohms of common mode impedance.
You can use these Nanocrystalline toroidal cores as an antenna common mode balun/choke and as an interference common mode choke with switched power supplies, inverters etc.
Recommended common mode impedance for a common mode current balun.
- 1/4 ground planes, inverted-L and other 1/4 antennas 500 ohms or more
- Dipoles, loops, 1/2 wave slopers and other center fed antennas 1000 ohms or more
- OCF dipoles (windom) and End-Fed wires (with counterpoise) preferable 2000 ohms or more on lower bands.
On the higher bands there are not so much man-made noise, thus 500 ohms or more is enough for all antennas on higher bands.
Nanocrystalline material could be used also in other RF application. Read more of the good nanocrystalline properties here.
Update 2022-01-10 OH7SV
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