IRON POWDER SHIELDED COIL FORMS

Adjustable/Slug Tuned
L-43 Coil Forms

  

    Miniature in size
    Slug tuning
    Copper shield can, tin plated
    Easy to wind
    Good Q
    Frequency range .2 to 200 MHz
    Inductance range .02 to 700 uh

 
 

Part
number

Frequency
range (MHz)

AL (µh/100 t)
at max L

L ratio
max to min

Wire

Turns

L (µh)

Q max

L-43-1

0.30 - 1.0

115

1.6 - 1

3/44

75

42.50

80

L-43-2

1.00 - 10.0

98

1.6 - 1

9/44

21

4.00

120

L-43-3

0.01 - 0.5

133

1.8 - 1

3/44

223

600.00

90

L-43-6

10.00 - 50.0

85

1.4 - 1

26

6

0.30

30

L-43-10

25.00 - 100.0

72

1.3 - 1

24

5

0.14

150

L-43-17

50.00 - 200.0

56

1.2 - 1

22

3

0.05

200


Solid magnet wire may be substituted for the Litz wire, but somewhat lower Q may result.

Most efficient when tuning slug is set at maximum L. For Tuning flexibility calculate so that slug will be about 90% maximum L when at operating frequency.

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800-679-3184


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