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Toroidal ferrite cores (RTF type)

Toroidal ferrite cores, used in DTF - DTS chokes and TI-T transformers

Toroidal ferrite cores are available in many sizes and materials (table below).

toroidal ferrite cores rdzenie toroidalne

Toroidal ferrite cores - dimensions [mm]
INDEX
A
B
C
material
AL
HP
P
RTF-4,3x2,8x2,5-F938
4,3
2,8
2,5
F938
1720
X
RTF-6,3x3,8x2,5-F938
6,3
3,8
2,5
F938
2500
X
RTF-6x3x3-F938
6
3
3
F938
5000
X
RTF-7x4x3-F830
7
4
3
F830
1480
X
RTF-9x6x3-3E25
9
6
3
3E25
1340
X
RTF-9x6x3-3F3
9
6
3
3F3
440
X
RTF-10x6x3E-3F3
10
6
4
3F3
740
X
RTF-10x6x4-4A11
10
6
4
4A11
348
RTF-10x6x4-F938
10
6
4
F938
4080
X
RTF-10x6x4-F830
10
6
4
F830
1800
X
RTF-10x6x4-3C11
10
6
4
3C11
1800
X
RTF-10x6x4-3E25
10
6
4
3C25
2250
X
RTF-12,5x7,5x5-3C11
12,5
7,5
5
3C11
2300
X
RTF-12,5x7,5x5-F827
12,5
7,5
5
F827
1000
X
RTF-12,5x7,5x5-F830
12,5
7,5
5
F830
2300
X
RTF-12,5x7,5x5-F867
12,5
7,5
5
F867
1200
X
RTF-12,5x7,5x5-F938
12,5
7,5
5
F938
5100
X
RTF-13x7,5x5-3C20
13
7,5
5
40
RTF-13x7,5x5-3E5
13
7,5
5
3E5
5000
X
RTF-13x7,5x5-4A11
13
7,5
5
4A11
360
RTF-13x7,5x5-3C90-M
13
7,5
5
3C90-M
1900
X
RTF-16x9,5x6,5-F830
16
9,5
6,5
F830
2850
X
RTF-16x9,5x6,5-F860
16
9,5
6,5
F860
4020
X
RTF-16x9,5x6,5-F867
16
9,5
6,5
F867
1480
X
RTF-16x9,5x6,5-F938
16
9,5
6,5
F938
6480
X
RTF-16x9,6x6,3-3E25
16
9,6
6,3
3E25
3540
X
RTF-17x11x6,4-3C20
17
11
6,4
72
RTF-20x10x10-F860
20
10
10
F860
10000
X
RTF-20x10x10-F867
20
10
10
F867
3600
X
RTF-20x10x10-F938
20
10
10
F938
13000
X
RTF-20x10x7-3C90
20
10
7
3C90
2230
X
RTF-22x14x6-F867
22
14
6
F867
1250
X
RTF-22x14x7-F830
22
14
7
F830
2700
X
RTF-25x15x10-3C11
25
15
10
3C11
4300
X
RTF-25x15x10-F830
25
15
10
F830
4300
X
RTF-25x15x10-F867
25
15
10
F867
2180
X
RTF-25x15x10-F938
25
15
10
F938
10000
X
RTF-25x15x10-3E25
25
15
10
3E25
5600
X
RTF-25x15x10-3E5
25
15
10
3E5
8680
X
RTF-25x15x10-F860
25
15
10
F860
7100
X
RTF-25x15x10-K10000
25
15
10
K10000
10000
X
RTF-25x15x10-K2004
25
15
10
K2004
2300
X
RTF-31,5x19x12,5-K2004
31,5
19
12,5
K2004
2500
X
RTF-31x19x13-F860
31
19
13
F860
7870
X
RTF-31x19x13-F867
31
19
13
F867
2800
X
RTF-31x19x13-F938
31
19
13
F938
12000
X
RTF-32,5x13x7-K2006
32,5
13
7
K2006
2550
X
RTF-32,5x13x8,5-K2006
32,5
13
8,5
K2006
3200
X
RTF-36x23x15-3C11
36
23
15
3C11
5800
X
RTF-40x24x16-F867
40
24
16
F867
3400
X
RTF-40x24x16-F860
40
24
16
F860
10000
X
RTF-40x24x16-F938
40
24
16
F938
15000
X
RTF-40x24x16-K2006
40
24
16
K2006
3400
X
RTF-42x26x13-3E25
42
26
13
3E25
6425
X
RTF-42x26x13-N30
42
26
13
N30
4866
X
RTF-47x25x15-F946
47
25
15
F946
17440
X
RTF-58,3x40,8x17,6-K4000
58,3
40,8
17,6
K4000
4700
X
RTF-63x38x25-F860
63
38
25
F860
15650
X
RTF-74x39x13-3F3
74
39
13
3F3
2900
X
RTF-87x54x14-3C90
87
54
14
3C90
2930
X

legend:
HP - high permeability
P - power material

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