ECM Axial Molded Choke
MF Series
§
§
§
§
High Temperature Tolerance
High Solvent Resistance
Low EMI
Typical Reel Size 1500pcs
The MF range of encapsulated axial chokes from ECM have been especifically designed to cope with
high current at temperatures up to 125
o
C, with minimum ppm /
o
C losses.
Its physical construction, while not offering complete EMI shielding, generates extremely low magnetic
interference and has a typical degree of coupling at 3
o
max. All the components in this range are
hermetically sealed and solvent resistant, conforming to MIL-STD-202F-213B
COMPONENT OUTLINE
DIMENSIONS (mm)
TYPE
MF1303
MF1304
MF1501
MF1302
MF1309
a∅
2.41
3.96
4.11
4.83
6.50
b
3.35
9.53
10.41
11.18
14.50
c
25.0
25.0
25.0
25.0
25.0
d∅
0.50
0.60
0.60
0.64
0.80
MARKING BANDS
= first significant figure, second significant figure, multiplier, tolerance (%)
Black
0
1
-
Brown
1
10
-
Red
2
100
-
Orange Yellow Green
3
4
5
1000 10000
-
-
-
-
Blue
6
-
-
Violet
7
-
-
Grey
8
-
-
White
9
-
-
Silver Gold
-
-
-
-
+/-10% +/- 5%
Significant
Multiplier
Tolerance
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
ECM Axial Molded Choke
ECM
Part
L
(µH)
µ
Tol
%
Q Min.
(**MHz)
SRF
Min.
(MHz)
R
DC
MAX
(Ω )
Ω
I
DC
I
N
(mA)
MF1303 Series
MF1303T-R10
MF1303T-R12
MF1303T-R15
MF1303T-R18
MF1303T-R22
MF1303T-R27
MF1303T-R33
MF1303T-R39
MF1303T-R47
MF1303T-R56
MF1303T-R68
MF1303T-R82
MF1303T-1R0
MF1303T-1R2
MF1303T-1R5
MF1303T-1R8
MF1303T-2R2
MF1303T-2R7
MF1303T-3R3
MF1303T-3R9
MF1303T-4R7
MF1303T-5R6
MF1303T-6R8
MF1303T-8R2
MF1303T-100
MF1303T-120
MF1303T-150
MF1303T-180
MF1303T-220
MF1303T-270
MF1303T-330
MF1303T-390
MF1303T-470
MF1303T-560
MF1303T-680
MF1303T-820
MF1303T-101
MF1303T-121
MF1303T-151
MF1303T-181
MF1303T-221
0.10 @25.2 MHz
0.12 @25.2 MHz
0.15 @25.2 MHz
0.18 @25.2 MHz
0.22 @25.2 MHz
0.27 @25.2 MHz
0.33 @25.2 MHz
0.39 @25.2 MHz
0.47 @25.2 MHz
0.56 @25.2 MHz
0.68 @25.2 MHz
0.82 @25.2 MHz
1.0 @25.2 MHz
1.2 @7.96 MHz
1.5 @7.96 MHz
1.8 @7.96 MHz
2.2 @7.96 MHz
2.7 @7.96 MHz
3.3 @7.96 MHz
3.9 @7.96 MHz
4.7 @7.96 MHz
5.6 @7.96 MHz
6.8 @7.96 MHz
8.2 @7.96 MHz
10 @7.96 MHz
12 @2.52 MHz
15 @2.52 MHz
18 @2.52 MHz
22 @2.52 MHz
27 @2.52 MHz
33 @2.52 MHz
39 @2.52 MHz
47 @2.52 MHz
56 @2.52 MHz
68 @2.52 MHz
82 @2.52 MHz
100 @2.52 MHz
120 @ 0.796 MHz
150 @ 0.796 MHz
180 @ 0.796 MHz
220 @ 0.796 MHz
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
40
40
38
35
33
33
30
30
30
30
28
28
25
25
28
30
30
37
45
45
45
50
50
55
55
45
45
50
50
50
45
45
45
45
50
50
50
30
30
30
30
680
640
600
550
510
430
410
365
330
300
275
250
230
150
140
125
115
100
90
80
75
65
60
55
50
40
35
30
25
20
24
22
20
18
15
14
13
12
11
10
9
0.08
0.09
0.10
0.12
0.14
0.16
0.22
0.30
0.35
0.50
0.60
0.85
1.00
0.18
0.22
0.30
0.40
0.55
0.85
1.00
1.20
1.80
2.00
2.70
3.30
2.70
2.80
3.10
3.30
3.50
3.40
3.60
4.50
5.70
6.70
7.30
8.00
13.0
15.0
17.0
21.0
1380
1300
1230
1120
1040
975
830
710
660
550
500
420
390
620
560
480
415
355
285
263
239
195
185
160
144
160
157
149
144
140
130
125
110
100
92
88
84
66
61
57
52
TOLERANCES J=5%; K= 10%.
** = Test Frequency as specified in ‘L’ column
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
ECM Axial Molded Choke
ECM
Part
L
(µH)
µ
Tol
%
Q Min.
(**MHz)
SRF
Min.
(MHz)
R
DC
MAX
(Ω )
Ω
I
DC
I
N
(mA)
MF1303 Series Continued…
MF1303T-271
MF1303T-331
MF1303T-391
MF1303T-471
MF1303T-561
MF1303T-681
MF1303T-821
MF1303T-102
270 @ 0.796 MHz
330 @ 0.796 MHz
390 @ 0.796 MHz
470 @ 0.796 MHz
560 @ 0.796 MHz
680 @ 0.796 MHz
820 @ 0.796 MHz
1000 @ 0.796 MHz
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
30
30
30
30
30
30
30
30
8
7
6.5
6
5
4.2
3.8
3.4
25.0
28.0
35.0
42.0
46.0
60.0
65.0
72.0
47
45
40
36
35
30
29
28
MF1304 Series
MF1304T-R15
MF1304T-R18
MF1304T-R22
MF1304T-R27
MF1304T-R33
MF1304T-R39
MF1304T-R47
MF1304T-R56
MF1304T-R68
MF1304T-R82
MF1304T-1R0
MF1304T-1R2
MF1304T-1R5
MF1304T-1R8
MF1304T-2R2
MF1304T-2R7
MF1304T-3R3
MF1304T-3R9
MF1304T-4R7
MF1304T-5R6
MF1304T-6R8
MF1304T-8R2
MF1304T-100
MF1304T-120
MF1304T-150
MF1304T-180
MF1304T-220
MF1304T-270
MF1304T-330
MF1304T-390
0.15 @25.2 MHz
0.18 @25.2 MHz
0.22 @25.2 MHz
0.27 @25.2 MHz
0.33 @25.2 MHz
0.39 @25.2 MHz
0.47 @25.2 MHz
0.56 @25.2 MHz
0.68 @25.2 MHz
0.82 @25.2 MHz
1.0 @25.2 MHz
1.2 @7.96 MHz
1.5 @7.96 MHz
1.8 @7.96 MHz
2.2 @7.96 MHz
2.7 @7.96 MHz
3.3 @7.96 MHz
3.9 @7.96 MHz
4.7 @7.96 MHz
5.6 @7.96 MHz
6.8 @7.96 MHz
8.2 @7.96 MHz
10 @7.96 MHz
12 @2.52 MHz
15 @2.52 MHz
18 @2.52 MHz
22 @2.52 MHz
27 @2.52 MHz
33 @2.52 MHz
39 @2.52 MHz
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
50
50
50
45
45
45
45
50
50
50
50
33
33
33
33
33
33
33
33
45
50
50
55
65
65
75
75
60
65
60
525
480
450
400
360
330
310
280
250
220
200
180
160
150
135
120
110
100
90
60
55
50
45
42
40
34
30
25
19
14
0.03
0.04
0.05
0.07
0.09
0.11
0.12
0.13
0.15
0.22
0.29
0.42
0.50
0.65
0.95
1.20
2.00
2.30
2.60
0.32
0.50
0.60
0.90
1.10
1.40
2.25
2.50
2.60
3.00
2.60
2740
2580
2020
1740
1580
1450
1370
1390
1220
1020
880
730
670
590
485
430
335
310
294
565
450
410
335
305
271
213
202
198
185
198
TOLERANCES J=5%; K= 10%; M=20%.
** = Test Frequency as specified in ‘L’ column
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
ECM Axial Molded Choke
ECM
Part
L
(µH)
µ
Tol
%
Q Min.
(**MHz)
SRF
Min.
(MHz)
R
DC
MAX
(Ω )
Ω
I
DC
I
N
(mA)
MF1304 Series continued…
MF1304T-470
MF1304T-560
MF1304T-680
MF1304T-820
MF1304T-101
MF1304T-121
MF1304T-151
MF1304T-181
MF1304T-221
MF1304T-271
MF1304T-331
MF1304T-391
MF1304T-471
MF1304T-561
MF1304T-681
MF1304T-821
MF1304T-102
47 @2.52 MHz
56 @2.52 MHz
68 @2.52 MHz
82 @2.52 MHz
100 @2.52 MHz
120 @ 0.796 MHz
150 @ 0.796 MHz
180 @ 0.796 MHz
220 @ 0.796 MHz
270 @ 0.796 MHz
330 @ 0.796 MHz
390 @ 0.796 MHz
470 @ 0.796 MHz
560 @ 0.796 MHz
680 @ 0.796 MHz
820 @ 0.796 MHz
1000 @ 0.796 MHz
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
55
55
55
50
50
65
65
65
65
65
65
65
65
65
65
65
65
13
12
11
10
9.5
8.7
8
8
6.2
5.7
5.1
4.5
3.9
3.8
3.1
2.7
2.3
2.75
3.00
3.30
3.90
4.50
5.20
6.05
6.05
7.45
11.0
12.0
16.3
17.9
19.5
27.2
30.0
33.0
193
184
176
162
151
140
130
130
117
143
136
117
112
107
91
86
82
MF1501 Series
MF1501T-R10
MF1501T-R12
MF1501T-R15
MF1501T-R18
MF1501T-R22
MF1501T-R27
MF1501T-R33
MF1501T-R39
MF1501T-R47
MF1501T-R56
MF1501T-R68
MF1501T-R82
MF1501T-1R0
MF1501T-1R2
MF1501T-1R5
MF1501T-1R8
MF1501T-2R2
MF1501T-2R7
MF1501T-3R3
MF1501T-3R9
MF1501T-4R7
0.10 @25.2 MHz
0.12 @25.2 MHz
0.15 @25.2 MHz
0.18 @25.2 MHz
0.22 @25.2 MHz
0.27 @25.2 MHz
0.33 @25.2 MHz
0.39 @25.2 MHz
0.47 @25.2 MHz
0.56 @25.2 MHz
0.68 @25.2 MHz
0.82 @25.2 MHz
1.0 @25.2 MHz
1.2 @7.96 MHz
1.5 @7.96 MHz
1.8 @7.96 MHz
2.2 @7.96 MHz
2.7 @7.96 MHz
3.3 @7.96 MHz
3.9 @7.96 MHz
4.7 @7.96 MHz
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
50
50
50
50
50
45
45
45
45
40
40
40
45
45
45
45
45
45
45
45
45
250
250
250
250
250
250
250
250
235
210
190
180
140
130
115
105
100
92
85
75
70
0.025
0.034
0.037
0.047
0.067
0.11
0.13
0.18
0.25
0.33
0.45
0.59
0.07
0.10
0.12
0.14
0.19
0.28
0.35
0.40
0.55
1790
1530
1470
1300
1100
855
788
670
565
490
420
370
1070
895
815
775
650
535
480
450
380
TOLERANCES J=5%; K= 10%; M=20%.
** = Test Frequency as specified in ‘L’ column
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
ECM Axial Molded Choke
ECM
Part
L
(µH)
µ
Tol
%
Q Min.
(**MHz)
SRF
Min.
(MHz)
R
DC
MAX
(Ω )
Ω
I
DC
I
N
(mA)
MF1501 Series continued…
MF1501T-5R6
MF1501T-6R8
MF1501T-8R2
MF1501T-100
MF1501T-120
MF1501T-150
MF1501T-180
MF1501T-220
MF1501T-270
MF1501T-330
MF1501T-390
MF1501T-470
MF1501T-560
MF1501T-680
MF1501T-820
MF1501T-101
MF1501T-121
MF1501T-151
MF1501T-181
MF1501T-221
MF1501T-271
MF1501T-331
MF1501T-391
MF1501T-471
MF1501T-561
MF1501T-681
MF1501T-821
MF1501T-102
MF1501T-122
MF1501T-152
MF1501T-182
MF1501T-222
MF1501T-272
MF1501T-332
MF1501T-392
MF1501T-472
MF1501T-562
MF1501T-682
MF1501T-882
MF1501T-103
5.6 @7.96 MHz
6.8 @7.96 MHz
8.2 @7.96 MHz
10 @7.96 MHz
12 @2.52 MHz
15 @2.52 MHz
18 @2.52 MHz
22 @2.52 MHz
27 @2.52 MHz
33 @2.52 MHz
39 @2.52 MHz
47 @2.52 MHz
56 @2.52 MHz
68 @2.52 MHz
82 @2.52 MHz
100 @2.52 MHz
120 @ 0.796 MHz
150 @ 0.796 MHz
180 @ 0.796 MHz
220 @ 0.796 MHz
270 @ 0.796 MHz
330 @ 0.796 MHz
390 @ 0.796 MHz
470 @ 0.796 MHz
560 @ 0.796 MHz
680 @ 0.796 MHz
820 @ 0.796 MHz
1000 @ 0.796 MHz
1200 @ 0.252 MHz
1500 @ 0.252 MHz
1800 @ 0.252 MHz
2200 @ 0.252 MHz
2700 @ 0.252 MHz
3300 @ 0.252 MHz
3900 @ 0.252 MHz
4700 @ 0.252 MHz
5600 @ 0.252 MHz
6800 @ 0.252 MHz
8200 @ 0.252 MHz
10000 @ 0.252 MHz
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
45
50
50
50
55
45
45
45
45
45
50
50
50
50
50
50
55
55
55
55
55
55
60
60
60
60
60
60
45
45
45
45
45
45
45
45
45
40
40
40
65
55
50
46
44
49
45
41
38
34
29
27
25
21
10.5
10
9.7
8.5
8
7.5
7
6.5
6.2
5.7
4.7
4.5
4.2
3.8
1.5
1.2
1.0
0.97
0.92
0.84
0.80
0.74
0.73
0.66
0.54
0.47
0.72
1.02
1.32
1.62
2.00
0.80
0.89
0.96
1.19
1.37
1.93
2.11
2.23
2.70
2.44
3.12
3.60
4.10
4.40
5.00
5.80
6.40
7.40
9.50
10.50
11.8
13.0
17.5
22.1
26.5
29.9
33.8
47.3
53.0
73.8
81.6
98.9
111
119
137
335
280
250
220
200
315
300
290
260
240
205
195
190
170
180
160
150
140
135
125
115
110
105
92
90
80
80
70
60
55
50
50
40
40
35
31
28
27
26
24
TOLERANCES J=5%; K= 10%; M=20%.
** = Test Frequency as specified in ‘L’ column
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
PCB Design
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