POWDERED IRON MATERIAL FOR TUNED RF VHF UHF AND HIGH Q CIRCUITS

NOMINAL PERMEABILITY

EFFECTIVE PERMEABILITY

RELATIVE Q

RECOMMENDED FREQUENCY RANGE

PERMACOR MATERIAL IDENTIFICATION

BASIC MATERIAL

UNIQUE CHARACTERISTICS

55

5.81

Lowest

10KHZ to 100KHz

22

MH-100

The highest permeability and lowest Q material suitable for chokes and noise filters.

40

5.69

Low

100KHZ to 500KHZ

5

MP-34

High permeability, low Q material, widely used in color television and AM TUNING. Suitable for width and linearity controls.

30

5.42

High

200KHZ to 1.5MHZ

20

Carbonyl HP

High Q excellent stability, ideal for threaded cores. Used in IF transformers and for AM TUNING.

25

5.32

High

500KHZ to 10MHZ

21

Carbonyl C

Low T.C., high Resistivity, ideal for cups, bobbins and threaded cores.

20

5.20

High

200KHZ to 1.5MHZ

18

Carbonyl GS-6

Highest Q material at 455KHZ. Highest Resistivity. Ideal for bobbin cores.

22

5.10

Medium

500KHZ to 1.5MHZ

38

MP-39

Low cost material with moderate Q and permeability. Used in IF transformers and for AM TUNING.

10

3.72

Medium

1MHZ to 40MHZ

10

Carbonyl E

Very stable material widely used, and available in any configuration. High Resistivity. Low Cost.

9

3.53

High

10MHZ to 50MHZ

11

Carbonyl TH

Higher Q than Carbonyl E. Low T.C. Excellent for Toroids

8

3.43

Very High

20MHZ to 50MHZ

12

Carbonyl SF

Highest Q in a toroidal form. Ideal for communication filters. Very stable material.

8

3.39

Very High

30MHZ to 50MHZ

13

Carbonyl J

High Q material. Suitable for VHF television coils.

7.5

3.34

Low

50KHZ to 5MHZ

30

Magnetite

Lowest cost material for sleves, cups and flexible shielding.

6

3.02

Highest

40MHZ to 100MHZ

14

Carbonyl W

Highest Q. Highest cost material. Best stability at 40-100 MHZ. Ideal for Toroid filters and FM TUNING.

3

2.05

Very High

50MHZ to 150MHZ

8

IRN-8

Synthetic oxide with high internal resistance, lowest losses. Ideal for FM TUNING.

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