| Physical Dimensions |
OD = 0.500 in. / 12.7 mm
ID = 0.303 in. / 7.70 mm
Ht =
0.190 in. / 4.83 mm |
| Magnetic Dimensions |
 = 3.19 cm
A = 0.112
cm2
V = 0.358 cm3 |
| Dimensional Tolerance |
OD - 0.02 in.
ID - 0.02 in.
Ht - 0.02 in. |
AL
uH =
(AL * Turns2) / 1000 |
4.0 |
| Basic Iron Powder |
Carbonyl SF |
| Material Permeability
(µ°) |
8.5 |
Temperature Stability (ppm
/°C)
* averaged from -55C° to 흮 |
35 |
Magnetic Tolerance
* tested with evenly-spaced windings |
5 % |
| Toroidal Color Code |
Yellow/Clear |
Resonant Circuit Frequency
Range
* range is given to optimize Q and
core loss |
3MHz - 40MHz |
|
|
# of
Turns |
Inductance
in
uH |
length
in inches
includes
1 inch tails |
| 6 |
.15 |
5.9" |
| 8 |
.26 |
7.2" |
| 10 |
.41 |
8.5" |
| 12 |
.58 |
9.8" |
| 14 |
.80 |
11.1" |
| 16 |
1.1 |
12.4" |
| 18 |
1.3 |
13.7" |
| 20 |
1.6 |
15.0" |
| 22 |
2.0 |
16.3" |
| 24 |
2.4 |
17.6" |
| 26 |
2.8 |
18.9" |
| 28 |
3.2 |
20.2" |
| 30 |
3.65 |
21.5" |
| 32 |
4.1 |
22.8" |
| 34 |
4.7 |
24.1" |
| 36 |
5.2 |
25.4" |
| 38 |
5.8 |
26.7" |
| 40 |
6.5 |
28.0" | |
