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.