Specifically suited to produce good impeedance for lower band common mode chokes.
This is an ideal core for a common mode choke for Top Band 160m and Short Wave receiving due to its high initial permiability.
These cores are large at 2.9" so they are great for winding coax through the middle of the core.
Details;
Type 75 ferrite mix
Plastic 75 Ferrite Core Toroid
Length Width 2.978" (75.65mm)
Diameter 0.535" (13.60mm) Height
The C dimension may be modified to suit specific applications.
Weight: 188 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 75.65 | Max | 2.978 | Max |
B | 37.6 | Min | 1.481 | Min |
C | 13.6 | Max | 0.535 | Max |
Chart Legend Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume AL : Inductance Factor
Electrical Properties | |
AL(nH) | 8100+25%, -30% |
Ae(cm2) | 2.14 |
Σl/A(cm-1) | 7.7 |
le(cm) | 16.5 |
Ve(cm3) | 35.3 |
Toroids are tested for AL values at 10 kHz.