Home > Products
 
Products List
-
 EMI RPS TYPE
-
 EMI RP TYPE
-
 EMI CTRC, CTNF TYPE
-
 EMI SLEEVE CORES RH TYPE
-
 EMI / INDUCTOR TOROIDAL CORES T TYPE
-
 EMI S*H TYPE
-
 EMI SM BEAD SMB TYPE
-
 EMI BEADS FBS / FBD FBR TYPE
-
 COMMON MODE CHOKE CM TYPE
-
 COMMON MODE CHOKE BN TYPE
-
 COMMON MODE CHOKE BN TYPE-2
-
 COMMON MODE CHOKE TR TYPE
-
 WIDE BAND CHOKES R6H TYPE
-
 EMI D - SUB D*S TYPE
-
 RHH / R4H / RID TYPE
-
 EMI FERRITE - TILE
-
 SMD POWER CHOKE
SQUARE RI + DR TYPE
-
 SMD POWER CHOKE
ROUND RI + DR TYPE
-
 SMD POWER CHOKE
SILVERING I TYPE
-
 SMD POWER CHOKE
SILVERING CT TYPE
-
 MINIATURE DRUM
TYPE DR TYPE
-
 ROD CORE R TYPE
-
 BOBBIN DR TYPE
-
 COIL FORM DR2W / DR3W / DR4W TYPE
-
 COIL FORM DRWW TYPE
-
 COIL FORM RWW TYPE
-
 THREAD TH TYPE
-
 CUP P TYPE
-
 THREADED CUP THP TYPE
E-mail
Toroidal cores
Toroidal cores :
Toroidal cores provide high performance when wound and used as cores for transformers, inductors, or chokes .
 
Outline :
The key to supp-ressing radiated noise emi-ssions generated by electr- onic equipment and systems is successful application of effective common-mode countermeasures at data lines. It could be used with series data lines, the data line is wrapped around the filter cores.Located between the CPU and terminal, they Dramatically reduce electro-magnetic noise .
 
Features :
Minimal effect on transmission waveforms. Provide low cost noise coun-termeasures right at the data lines.Can be added as First-Aid,On-The Spot counterme-asures when equipment or devices fail.Application: Com-puters, peripherals and term-inals data, Terminal equipm-ent.NC machines.Measuring equipment, equipment using sensors. OA equipment,Plain paper copiers. Improvement of noise immunity for TVs, FM/AM Tuners, VTRs/VCRs.Harness noise countermeas-ures for automobiles.ISDN terminal equipment.
 
Application :
LAN matching and isolation transformers.LAN common mode chokes.Power supply common chokes. Inductors. Current sensing transformers. DC-DC converters. Telecommunications. transformers. Linghting Ballasts. EMI filters.
 
Ordering Code :
Dimensions & Characteristics :
Unit: mm
NO
ITEM
Unit:mm
Impedance
() min
 AL(nH)
(Z,RS,XL)
-f Curve
ø A
ø C
ø D
25MHz
100MHz
CURVE
1
K5A T
3.2X1X0.15
3.2±0.15
1.25±0.1
3±0.2
-
-
 368
-
2
K5A T
3.55X1X3
3.5±0.15
1±0.1
3±0.2
-
20
 467
-
3
K5A T
3.5X1.3X3
3.5±0.15
1.3±0.1
3±0.2
-
20
 385
-
4
K6 T
4X2X3
4±0.2
2±0.15
3±0.2
-
16
 600
-
5
K6 T
4.1X2X3
4.1±0.2
2±0.15
3±0.2
-
15
 620
-
6
K5A T
4.5X1.5X3.5
4.5±0.2
1.5±0.15
3.5±0.2
70
100
 490
-
7
K6 T
5X1.5X4
4±0.2
1.5±0.15
4±0.3
-
-
 1292
-
8
K5A T
5X3X2
5±0.2
3±0.2
2±0.2
-
-
 140
-
9
K5A T
5.08X2.36X4.8
5.08±0.2
2.36±0.15
4.8±0.3
310
490
 491
-
10
K5A T
6X1.8X3
6±0.2
1.8±0.15
3±0.2
-
-
453
-
11
K6 T
6X3X2
6±0.2
3±0.2
2±0.2
-
-
400
-
12
K6 T
6X3X3
6±0.2
3±0.2
3±0.2
-
-
10
-
13
K5A T
7X3.5X4
7±0.2
3.5±0.2
4±0.3
15
45
 373
-
14
K6 T
7.62X3.18X4.78
7.62±0.2
3.18±0.2
4.78±0.3
25
50
 1179
-
15
K6 T
8X4X4
8±0.2
4±0.2
4±0.3
-
-
800
-
16
K6 T
9X5X3
9±0.3
5±0.25
3±0.2
-
-
 514
-
17
K5 T
9.15X5.02X4.7
9.15±0.3
5.02±.25
4.7±0.3
-
35
 548
18
K5A T
9.4X6.3X6.2
9.4±0.3
6.3±0.3
6.2±0.3
10
25
 343
-
19
K5A T
9.5X4.75X4.8
9.5±0.3
4.75±0.2
4.8±0.3
-
30
 448
-
20
K5A T
9.5X4.79X5
9.5±0.3
4.78±0.2
5±0.3
-
-
461
-
21
K5A T
9.5X5.02X5
9.5±0.3
5.02±0.3
5±0.3
20
35
 432
-
22
K5A T
9.5X5X5
9.5±0.3
5±0.3
5±0.3
20
35
 434
-
23
P3 T
9.53X4.75X3.2
9.53±0.3
4.75±0.25
3.2±0.2
-
50
 43
-
24
K5 T
9.53X5.02X4.8
9.53±0.3
5.02±0.25
4.8±0.3
-
30
 595
-
25
K5A T
9.58X6.4X5
9.58±0.3
6.4±0.3
5±0.3
-
-
279
-
26
K5A RH
9.6X6.4X7.4
9.6±0.3
6.4±0.3
7.4±0.3
-
-
414
-
27
K6 T
9.65X5.02X4.83
9.65±0.3
5.02±0.25
4.83±0.2
10
30
 -
-
28
K5A T
9.65X5X5.05
9.65±0.3
5±0.2
5.05±0.3
21
43
 449
-
29
K5A T
9.8X6.3X7.4
9.8±0.3
6.30±0.3
7.4±0.3
-
45
 450
-
30
K5A T
10X4X6
10±0.3
4±0.2
6±0.3
-
-
 720
-
31
P1B T
10X5.1X9
10±0.3
5.1±0.25
9±0.3
30
60
 673
-
32
K5A T
10X5X5
10±0.3
5±0.25
5±0.3
-
-
 467
-
33
K6 T
10X6X4
10±0.3
6±0.3
4±0.3
-
-
600
-
34
K5A T
10X7X5
10±0.3
7±0.3
5±0.3
15
40
 247
-
35
K6 T
12X6X6
12±0.3
6±0.3
6±0.3
-
-
-
-
36
K5A T
12X7X5.5
12±0.3
7±0.3
5.5±0.3
15
40
405
-
37
K5A T
12.7X7.9X6.35
12.7±0.3
7.9±0.3
6.35±0.3
21
42
 414
38
K5A T
13X7X3
13±0.3
7±0.3
3±0.2
15
30
 252
-
39
K6 T
13X7.3X12.7
13±0.3
7.3±0.3
12.7±0.4
-
-
-
40
K5A T
13X8X12.7
13±0.3
8±0.3
12.7±0.3
-
30
 847
-
41
K5A T
14X8.7X7
14±0.4
8.7±0.3
7±0.3
25
45
 458
-
42
K5 T
14.2X4.5X6
14.2±0.4
4.5±0.4
6±0.3
35
85
1245
-
43
K5A T
14.2X6.35X13.8
14.2±0.4
6.35±0.3
13.8±0.4
60
100
 1476
-
44
K5A T
14.5X10.5X8
14.5±0.4
10.5±0.4
8±0.3
15
45
 358
-
45
K5A T
15.7X10X4.3
15.7±0.4
10±0.4
4.3±0.3
-
35
 367
-
46
K5A T
15.9X7.9X14.3
15.9±0.4
7.9±0.3
14.3±0.4
60
100
 1346
-
47
K5A T
16X8X13
16±0.4
8±0.3
13±0.4
45
90
1213
48
K5A T
16X10X5
16±0.4
10±0.4
6±0.3
-
-
323
-
49
K6 T
15X12X8
16±0.4
12±0.4
8±0.3
-
30
 686
-
50
K5A T
16.5X8.2X13
16.5±0.4
8.2±0.3
13±0.4
45
100
 1223
-
51
K5A T
17.4X9.6X15
17.4±0.4
9.6±0.3
15±0.4
-
-
1213
-
52
K5A T
17.5X9.5X12.7
17.5±0.4
9.5±0.3
12.7±0.4
45
70
1054
53
C8 T
18X7X3
18±0.5
7±0.3
3±0.2
-
-
106
-
54
K5A T
18.3X10X10
18.3±0.5
10±0.4
10±0.4
30
80
 -
55
K5A T
18.4X9.5X15
18.4±0.5
9.5±0.3
15±0.4
50
85
 1340
-
56
K5A T
18.4X9.6X12
18.4±0.5
9.6±0.3
12±0.4
45
80
 1056
-
57
K5A T
18.7X10.2X17
18.7±0.5
10.2±0.4
17±0.4
45
80
 1400
-
58
K5A T
20X10X10
20±0.6
10±0.4
10±0.4
140
250
 933
59
K5A T
20.7X12X14
20.7±0.6
12±0.4
14±0.4
140
250
 980
-
60
K5A T
21X13.2X12
21±0.6
13.2±0.4
12±0.4
30
65
 776
-
61
K5A T
21.2X12.7X6.1
21.2±0.6
12.7±0.4
6.1±0.3
30
65
 428
-
62
K5A T
22X13.5X8
22±0.6
13.5±0.4
8±0.3
30
60
 536
-
63
K5A T
22X14X8
22±0.6
14±0.4
8±0.3
30
60
 498
-
64
K5A T
22.1X13.7X6.35
22.1±0.6
13.7±0.4
6.35±0.3
15
45
 -
-
65
K5A T
22.5X13.8X6.4
22.5±0.6
13.8±0.4
6.4±0.3
15
45
 -
66
K5A T
22.5X13.8X12.8
22.5±0.6
13.8±0.4
12.8±0.4
40
80
 -
67
K5A T
23X6.35X13.5
23±0.6
6.35±0.3
13.5±0.4
-
-
1809
-
68
K5A T
23X11X14
23±0.6
11±0.4
14±0.4
60
110
 1384
-
69
K5A T
23X13.5X6.34
23±0.6
13.5±0.4
6.35±0.4
15
45
 463
-
70
K6A T
23.5X12.6X9.4
23.5±0.6
12.6±0.4
9.4±0.3
60
120
 1703
-
71
K5A T
24X11X14
24±0.6
14±0.4
14±0.4
60
100
 1456
-
72
K5A T
24X14X11
24±0.6
14±0.4
11±0.4
35
63
 -
-
73
K5A T
25X15X8.1
25±0.6
15±0.4
8.1±0.3
-
-
-
-
74
K5A T
25X15X12
25±0.6
15±0.5
12±0.4
35
80
 467
-
75
K6 T
28X16X13
28±0.6
16±0.3
13±0.4
40
80
 993
76
K5A T
29X19X7.5
29±0.6
19±0.5
7.5±0.3
20
50
 438
-
77
K5A T
29X19X8.1
29±0.6
19±0.5
8.1±0.3
-
-
-
-
78
K5 T
31X19X8
31±0.9
19±0.5
8±0.3
25
60
 -
79
K5A T
31.75X19.05X16
31.75±0.8
19.05±0.5
16±0.4
50
90
 -
80
K5A T
31.75X19.05X22.5
31.75±0.8
19.05±0.8
22.5±0.6
60
90
 -
-
81
K5A T
35.6X23X12.7
35.6±0.8
23±0.6
12.7±0.4
25
90
 765
82
K5A T
35.6X25.4X7.5
35.6±0.8
25.4±0.6
7.5±0.2
25
90
 351
83
K5A T
40.6X27.5X15
40.6±1
27.5±0.6
15±0.4
35
85
 808
84
K5A T
40.6X27X15
40.6±1
27±0.6
15±0.4
35
85
 845
-
Shapes :
 
 
Fig
 
 
( Z , RS , XL ) - f Curve :
 
 
Fig 1
K5 T 9.15x5.02x4.7
 
 
Fig 2
K5A RH11.8x7.3x15
 
Fig 3
K5A RH12x5.6x20
 
Fig 4
K5A RH 12x4x23
 
Fig 5
K5A T 12.7x7.9x6.35
 
Fig 6
K5A RH 13x7.3x12.7
 
Fig 7
K5A RH 14.2x6.35x28.5
 
Fig 8
K5A RH 14.2x7x28.5
 
Fig 9
K5A RH 15.7x7.5x28.5
 
Fig 10
KA5 T 16x8x13
 
Fig 11
K5A RH 16x9x17
 
Fig 12
K5A RH 16x9x28
 
Fig 13
K6 RH 16x10.5x28
 

Fig 14
K5 RH 17.5x9.5x12.7
 
Fig 15
K5A RH 17.5x9.5x28.5
 
Fig 16
K5A RH 17.5x11x28.5
 
Fig 17
K5A T 18.3x10x10
 
Fig 18
K5A RH 18.7x10.2x28.5
 
Fig 19
K5A T 20.7x12x28.5
 
Fig 20
K5A T 20x10x10
 
Fig 21
K5A T 22.5x13.8x6.4
 
Fig 22
K5A T 22.5x13.8x12.8
 
Fig 23
K5A RH 26x13x28.5
 
Fig 24
K5A T 26x14x28.5
 
Fig 25
K5A RH 28x14x28
 
Fig 26
K5A RH 28x16x13
 
Fig 27
K5A RH 31x19x8
 
Fig 28
K5A T 31.75x19.05x16
 
Fig 29
K5A T 35.6x23x12.7
 
Fig 30
K5A T 35.6x25.4x7.5
 
Fig 31
K5A T 40.6x27.5x15
 
 
CORE-TECH CORPORATION
FACTORY : NO. 238-6, SHIAH CHUANG TZE, YEONG AN,
HSIN WU, 327, TAO YUAN, TAIWAN, R.O.C.
TEL : 886-3-4861211~3 , 4862437 , 4861198
FAX : 886-3-4861210
E-mail : coretech@tpts1.seed.net.tw
WEB : http://www.coretech-taiwan.com
WEB : http://www.coretechweb.com.tw

Copyright 2003 CORE-TECH Co., Ltd.
Website Published By Taiwan Products Online , China Sources Online