Accetek
A
2MA Series
Dual Winding Shielded Inductor/Transformer
FEATURES
Dual winding shielded inductor can be used as single/dual/coupled inductor or 1:1 transformer
Operating Temperature range from -40°C to +125°C (Including Self-heating)
260°C reflow peak temperature qualified
Inductance up to 1mH in parallel mode for all case size
Protect tube inside to protect the enameled cooper wire
High strength sealing epoxy with stable temperatures character to keep the parts strong at wide range temperatures:
(Typical Hardness: ShoreD 86 @25°C, ShoreD 70 @125°C)
Available for 4 case size, up to 129 size (12.5×12.5×10.0mm) to meet with higher current requirements
Recommend for SEPIC and Flyback applications
Custom designs on request
B
PART NUMBER SYSTEM
2MA
❶
125
❷
-
100
❸
M
❹
F
❺
❶
2MA
Series
Series Code
❷
Dimension Code (L*W*H) (mm)
74 (7.6×7.6×4.6)
127 (12.5×12.5×8.0)
125 (12.5×12.5×6.0)
129 (12.5×12.5×10.0)
❸
e.g.
2R2
100
101
Inductance Code
Calculation
2.2μH
10×10
0
μH
= 10μH
10×10
1
μH
= 100μH
Inductance Tolerance
±10%
±20%
±30%
❺
RoHS Compliant
❹
K
M
N
C
DRAWINGS AND DIMENSIONS
2MA74
7,60 Max 1
[0,299] 2
XXX
4
3
4
3
1
2
0,85 Typ
[0,033]
2,80
[0,110]
7,50
[0,295]
1.00
[0,039]
7,50
[0,295]
1.00
[0,039]
7,50
[0,295]
2,20
[0,087]
2,20
[0,087]
2,20
[0,087]
0,80
[0,031]
0,80
[0,031]
7,60 Max
4,60 Max
[0,181]
[0,299]
1.45 Typ
[0,057]
Parallel Mode
Land Pattern
Dual Inductor Mode
Land Pattern
Series Mode
Land Pattern
Accetek Electronics (Shenzhen) Co., Ltd.
www.accetek.com
Ver.:2MA‐2012E
1
Accetek
2MA125
12,50 Max 1
[0,492] 2
2MA Series
Dual Winding Shielded Inductor/Transformer
XXX
12,50 Max
[0,492]
4
3
4
3
1
2
2.00 Typ
[0,079]
5,50
[0,217]
13,80
[0,543]
2,50
[0,098]
3,85
[0,152]
Parallel Mode
Land Pattern
13,80
[0,543]
13,80
[0,543]
3,85
[0,152]
2,50
[0,098]
3,85
0,50
[0,152] [0,020]
Dual Inductor Mode
Land Pattern
Series Mode
Land Pattern
0,50
[0,020]
6.00 Max
[0,236]
2,05 Typ
[0,081]
2MA127
12,50 Max 1
[0,492] 2
XXX
12,50 Max
[0,492]
4
3
4
3
1
2
2.00 Typ
[0,079]
5,50
[0,217]
2,05 Typ
[0,081]
13,80
[0,543]
2,50
[0,098]
3,85
[0,152]
Parallel Mode
Land Pattern
13,80
[0,543]
13,80
[0,543]
3,85
[0,152]
2,50
[0,098]
3,85
0,50
[0,152] [0,020]
Dual Inductor Mode
Land Pattern
Series Mode
Land Pattern
0,50
[0,020]
8.00 Max
[0,315]
2MA129
12,50 Max 1
[0,492] 2
XXX
12,50 Max
[0,492]
4
3
4
3
1
2
2.00 Typ
[0,079]
5,50
[0,217]
13,80
[0,543]
2,50
[0,098]
3,85
[0,152]
Parallel Mode
Land Pattern
13,80
[0,543]
13,80
[0,543]
3,85
[0,152]
2,50
[0,098]
3,85
0,50
[0,152] [0,020]
Dual Inductor Mode
Land Pattern
Series Mode
Land Pattern
0,50
[0,020]
10.00 Max
[0,394]
2,05 Typ
[0,081]
XXX = Inductance value
Dot indicates Pin1.
Schematics
1
2
1
2
1
2
L1
3
L2
4
3
L1
L2
4
3
L1
L2
4
Parallel Mode
Dual Inductor Mode
Series Mode
Accetek Electronics (Shenzhen) Co., Ltd.
www.accetek.com
Ver.:2MA‐2012E
2
Accetek
D
SPECIFICATIONS
Parallel Mode
L
1
Part Number
2MA74-R33NF
2MA74-1R0NF
2MA74-1R5NF
2MA74-2R2NF
2MA74-3R3NF
2MA74-4R7MF
2MA74-5R6MF
2MA74-6R8MF
2MA74-8R2MF
2MA74-100MF
2MA74-120MF
2MA74-150MF
2MA74-180MF
2MA74-220MF
2MA74-270MF
2MA74-330MF
2MA74-390MF
2MA74-470MF
2MA74-560MF
2MA74-680MF
2MA74-820MF
2MA74-101MF
2MA74-121MF
2MA74-151MF
2MA74-181MF
2MA74-221MF
2MA74-271MF
2MA74-331MF
2MA74-391MF
2MA74-471MF
2MA74-561MF
2MA74-681MF
2MA74-821MF
2MA74-102MF
2MA125-R47NF
2MA125-1R0NF
2MA125-1R5NF
2MA125-2R2NF
2MA125-3R3NF
2MA125-4R7MF
2MA125-5R6MF
(μH)
0.33
1.00
1.50
2.20
3.30
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100
120
150
180
220
270
330
390
470
560
680
820
1000
0.47
1.00
1.50
2.20
3.30
4.70
5.60
Tolerance
±30%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±30%
±20%
±20%
DCR
2
Typ.(Ω)
0.0074
0.0100
0.0115
0.0130
0.0183
0.0254
0.0350
0.0418
0.0441
0.0450
0.0500
0.0637
0.0835
0.0925
0.125
0.143
0.190
0.216
0.230
0.265
0.345
0.383
0.515
0.591
0.760
0.907
1.210
1.410
1.525
1.740
2.220
2.580
2.930
3.890
0.0018
0.0024
0.0040
0.0045
0.0063
0.0105
0.0115
DCR
2
Max.(Ω)
0.0111
0.0150
0.0173
0.0182
0.0220
0.0305
0.0420
0.0460
0.0485
0.0490
0.0580
0.0764
0.0910
0.1100
0.150
0.170
0.228
0.259
0.276
0.318
0.414
0.460
0.618
0.709
0.912
1.088
1.452
1.692
1.830
2.088
2.664
3.096
3.516
4.668
0.0027
0.0036
0.0060
0.0063
0.0076
0.0126
0.0150
Irms
3
(A)
6.20
5.33
4.96
4.66
3.94
3.34
3.00
2.60
2.53
2.41
2.17
2.11
1.84
1.75
1.50
1.41
1.22
1.15
1.11
1.03
0.91
0.86
0.74
0.69
0.61
0.56
0.48
0.45
0.43
0.40
0.36
0.33
0.31
0.27
17.60
13.18
10.21
9.96
9.09
7.04
6.45
2MA Series
Dual Winding Shielded Inductor/Transformer
Series Mode
Isat
4
(A)
12.50
10.20
7.50
6.50
5.20
4.10
3.90
3.70
3.30
2.80
2.50
2.20
2.00
1.90
1.70
1.50
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.65
0.62
0.59
0.55
0.49
0.45
0.41
0.38
0.36
0.30
0.27
25.00
16.50
14.40
11.70
10.40
8.72
7.26
L
1
(μH)
1.32
4.00
6.00
8.80
13.2
18.8
22.4
27.2
32.8
40.0
48.0
60.0
72.0
88.0
108
132
156
188
224
272
328
400
480
600
720
880
1080
1320
1560
1880
2240
2720
3280
4000
1.88
4.00
6.00
8.80
13.2
18.8
22.4
Tolerance
±30%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±30%
±20%
±20%
DCR
2
Typ.(Ω)
0.0296
0.0400
0.0460
0.0520
0.0732
0.1016
0.1400
0.1672
0.1764
0.1800
0.2000
0.2548
0.3340
0.3700
0.5000
0.5720
0.7600
0.8640
0.9200
1.060
1.380
1.532
2.060
2.364
3.040
3.628
4.840
5.640
6.100
6.960
8.880
10.320
11.720
15.560
0.0072
0.0096
0.0160
0.0180
0.0252
0.0420
0.0460
DCR
2
Max.(Ω)
0.0444
0.0600
0.0690
0.0728
0.0878
0.1219
0.1680
0.1839
0.1940
0.1960
0.2320
0.3058
0.3640
0.4400
0.6000
0.6800
0.9120
1.0368
1.1040
1.272
1.656
1.838
2.472
2.837
3.648
4.354
5.808
6.768
7.320
8.352
10.656
12.384
14.064
18.672
0.0108
0.0144
0.0240
0.0252
0.0302
0.0504
0.0600
Irms
3
(A)
3.10
2.67
2.48
2.33
1.97
1.67
1.50
1.30
1.27
1.21
1.09
1.06
0.92
0.88
0.75
0.71
0.61
0.58
0.56
0.52
0.46
0.43
0.37
0.35
0.31
0.28
0.24
0.23
0.22
0.20
0.18
0.17
0.16
0.14
8.80
6.59
5.10
4.98
4.55
3.52
3.23
Isat
4
(A)
6.25
5.10
3.75
3.25
2.60
2.05
1.95
1.85
1.65
1.40
1.25
1.10
1.00
0.95
0.85
0.75
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.33
0.31
0.30
0.28
0.25
0.23
0.21
0.19
0.18
0.15
0.14
12.50
8.25
7.20
5.85
5.20
4.36
3.63
Accetek Electronics (Shenzhen) Co., Ltd.
www.accetek.com
Ver.:2MA‐2012E
3
Accetek
Parallel Mode
L
1
Part Number
2MA125-6R8MF
2MA125-8R2MF
2MA125-100MF
2MA125-120MF
2MA125-150MF
2MA125-180MF
2MA125-220MF
2MA125-270MF
2MA125-330MF
2MA125-390MF
2MA125-470MF
2MA125-560MF
2MA125-680MF
2MA125-820MF
2MA125-101MF
2MA125-121MF
2MA125-151MF
2MA125-181MF
2MA125-221MF
2MA125-271MF
2MA125-331MF
2MA125-391MF
2MA125-471MF
2MA125-561MF
2MA125-681MF
2MA125-821MF
2MA125-102MF
2MA127-R47NF
2MA127-1R0NF
2MA127-1R5NF
2MA127-2R2NF
2MA127-3R3NF
2MA127-3R9NF
2MA127-4R7MF
2MA127-5R6MF
2MA127-6R8MF
2MA127-8R2MF
2MA127-100MF
2MA127-120MF
2MA127-150MF
2MA127-180MF
2MA127-220MF
2MA127-270MF
(μH)
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100
120
150
180
220
270
330
390
470
560
680
820
1000
0.47
1.00
1.50
2.20
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
Tolerance
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
DCR
2
Typ.(Ω)
0.0123
0.0170
0.0180
0.0230
0.0250
0.0290
0.0310
0.0400
0.0540
0.0580
0.0750
0.0850
0.0945
0.120
0.139
0.159
0.185
0.234
0.306
0.355
0.482
0.515
0.705
0.776
0.887
1.130
1.295
0.00195
0.00261
0.00341
0.00400
0.00680
0.00850
0.00940
0.01080
0.01200
0.01600
0.01720
0.02180
0.02400
0.03080
0.03300
0.03500
DCR
2
Max.(Ω)
0.0180
0.0210
0.0250
0.0270
0.0300
0.0340
0.0360
0.0510
0.0570
0.0645
0.0820
0.0890
0.1050
0.129
0.146
0.170
0.230
0.246
0.335
0.400
0.494
0.533
0.733
0.800
0.910
1.152
1.335
0.00300
0.00450
0.00600
0.00680
0.00816
0.01020
0.01128
0.01296
0.01440
0.01920
0.02000
0.02400
0.02700
0.03696
0.03960
0.04200
Irms
3
(A)
5.59
5.54
5.11
4.81
4.56
4.29
4.17
3.50
3.31
3.11
2.71
2.65
2.44
2.20
2.07
1.92
1.65
1.59
1.37
1.25
1.12
1.08
0.92
0.88
0.83
0.74
0.68
17.90
15.50
13.50
12.70
10.40
8.77
8.25
7.47
7.34
6.32
6.04
5.37
5.04
4.52
4.21
3.74
2MA Series
Dual Winding Shielded Inductor/Transformer
Series Mode
Isat
4
(A)
7.12
6.75
5.87
4.92
4.56
4.35
3.86
3.34
3.06
2.93
2.53
2.39
2.30
2.05
1.79
1.62
1.50
1.33
1.22
1.05
0.95
0.88
0.83
0.77
0.70
0.63
0.57
26.40
17.60
15.00
14.30
12.50
10.56
10.23
9.46
8.80
8.25
7.26
6.50
6.00
5.40
5.00
3.80
L
1
(μH)
27.2
32.8
40.0
48.0
60.0
72.0
88.0
108
132
156
188
224
272
328
400
480
600
720
880
1080
1320
1560
1880
2240
2720
3280
4000
1.88
4.00
6.00
8.80
13.2
15.6
18.8
22.4
27.2
32.8
40.0
48.0
60.0
72.0
88.0
108
Tolerance
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
DCR
2
Typ.(Ω)
0.0492
0.0680
0.0720
0.0920
0.1000
0.1160
0.1240
0.1600
0.2160
0.2320
0.3000
0.3400
0.3780
0.4800
0.5560
0.6360
0.7400
0.9360
1.224
1.420
1.928
2.060
2.820
3.104
3.548
4.520
5.180
0.0078
0.0104
0.0136
0.0160
0.0272
0.0340
0.0376
0.0432
0.0480
0.0640
0.0688
0.0872
0.0960
0.1232
0.1320
0.1400
DCR
2
Max.(Ω)
0.0720
0.0840
0.1000
0.1080
0.1200
0.1360
0.1440
0.2040
0.2280
0.2580
0.3280
0.3560
0.4200
0.5160
0.5840
0.6800
0.9200
0.9840
1.340
1.600
1.976
2.132
2.932
3.200
3.640
4.608
5.340
0.0120
0.0180
0.0240
0.0272
0.0326
0.0408
0.0451
0.0518
0.0576
0.0768
0.0800
0.0960
0.1080
0.1478
0.1584
0.1680
Irms
3
(A)
2.80
2.77
2.56
2.41
2.28
2.14
2.08
1.75
1.66
1.56
1.36
1.32
1.22
1.10
1.03
0.96
0.82
0.80
0.68
0.63
0.56
0.54
0.46
0.44
0.41
0.37
0.34
8.95
7.75
6.75
6.35
5.20
4.39
4.13
3.74
3.67
3.16
3.02
2.69
2.52
2.26
2.11
1.87
Isat
4
(A)
3.56
3.37
2.94
2.46
2.28
2.18
1.93
1.67
1.53
1.46
1.26
1.20
1.15
1.03
0.89
0.81
0.75
0.67
0.61
0.52
0.48
0.44
0.41
0.38
0.35
0.31
0.29
13.20
8.80
7.50
7.15
6.25
5.28
5.12
4.73
4.40
4.13
3.63
3.25
3.00
2.70
2.50
1.90
Accetek Electronics (Shenzhen) Co., Ltd.
www.accetek.com
Ver.:2MA‐2012E
4
Accetek
Parallel Mode
L
1
Part Number
2MA127-330MF
2MA127-390MF
2MA127-470MF
2MA127-560MF
2MA127-680MF
2MA127-820MF
2MA127-101MF
2MA127-121MF
2MA127-151MF
2MA127-181MF
2MA127-221MF
2MA127-271MF
2MA127-331MF
2MA127-391MF
2MA127-471MF
2MA127-561MF
2MA127-681MF
2MA127-821MF
2MA127-102MF
2MA129-R47NF
2MA129-1R0NF
2MA129-2R2NF
2MA129-3R5NF
2MA129-4R7MF
2MA129-6R8MF
2MA129-7R5MF
2MA129-100MF
2MA129-120MF
2MA129-150MF
2MA129-220MF
2MA129-270MF
2MA129-330MF
2MA129-390MF
2MA129-470MF
2MA129-560MF
2MA129-680MF
2MA129-820MF
2MA129-101MF
2MA129-121MF
2MA129-151MF
2MA129-181MF
2MA129-221MF
2MA129-271MF
(μH)
33.0
39.0
47.0
56.0
68.0
82.0
100
120
150
180
220
270
330
390
470
560
680
820
1000
0.47
1.00
2.20
3.50
4.70
6.80
7.50
10.0
12.0
15.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100
120
150
180
220
270
Tolerance
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
DCR
2
Typ.(Ω)
0.04700
0.05300
0.07190
0.08020
0.09000
0.120
0.135
0.182
0.216
0.229
0.323
0.415
0.487
0.533
0.707
0.777
1.045
1.166
1.334
0.0022
0.0034
0.0050
0.0060
0.0070
0.0090
0.0110
0.0130
0.0150
0.0210
0.0230
0.0300
0.0370
0.0440
0.0460
0.0540
0.0690
0.0905
0.100
0.130
0.139
0.153
0.193
0.248
DCR
2
Max.(Ω)
0.05640
0.06360
0.08628
0.09624
0.10800
0.144
0.162
0.218
0.259
0.275
0.388
0.498
0.584
0.640
0.848
0.932
1.254
1.399
1.601
0.0033
0.0051
0.0060
0.0090
0.0110
0.0140
0.0150
0.0180
0.0190
0.0260
0.0280
0.0400
0.0450
0.0560
0.0630
0.0680
0.0890
0.1050
0.110
0.156
0.174
0.191
0.300
0.330
Irms
3
(A)
3.58
3.35
2.96
2.80
2.62
2.23
2.16
1.86
1.71
1.66
1.39
1.23
1.14
1.09
0.94
0.90
0.78
0.73
0.69
17.50
14.00
11.50
11.00
9.30
8.40
7.80
7.60
7.10
6.00
5.30
4.60
4.20
4.10
3.80
3.40
3.20
2.70
2.50
2.30
2.30
2.20
1.90
1.70
2MA Series
Dual Winding Shielded Inductor/Transformer
Series Mode
Isat
4
(A)
3.70
3.60
3.45
2.90
2.70
2.50
2.40
2.00
1.80
1.70
1.50
1.30
1.20
1.10
1.00
0.90
0.80
0.80
0.70
27.50
25.00
20.00
16.50
13.00
12.80
10.60
10.50
8.80
8.00
6.50
5.80
5.50
5.00
4.50
3.70
3.60
3.40
3.10
2.60
2.40
2.30
2.20
2.10
L
1
(μH)
132
156
188
224
272
328
400
480
600
720
880
1080
1320
1560
1880
2240
2720
3280
4000
1.88
4.00
8.80
14.0
18.8
27.2
30.0
40.0
48.0
60.0
88.0
108
132
156
188
224
272
328
400
480
600
720
880
1080
Tolerance
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±30%
±30%
±30%
±30%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
±20%
DCR
2
Typ.(Ω)
0.1880
0.2120
0.2876
0.3208
0.3600
0.4800
0.5400
0.7280
0.8640
0.9160
1.292
1.660
1.948
2.132
2.828
3.108
4.180
4.664
5.336
0.0084
0.0136
0.0200
0.0240
0.0280
0.0360
0.0440
0.0520
0.0600
0.0840
0.0920
0.1200
0.1480
0.1760
0.1840
0.2160
0.2760
0.3620
0.4000
0.5200
0.5560
0.6120
0.7720
0.9920
DCR
2
Max.(Ω)
0.2256
0.2544
0.3451
0.3850
0.4320
0.5760
0.6480
0.8736
1.0368
1.0992
1.550
1.992
2.338
2.558
3.394
3.730
5.016
5.597
6.403
0.0126
0.0204
0.0240
0.0360
0.0440
0.0560
0.0600
0.0720
0.0760
0.1040
0.1120
0.1600
0.1800
0.2240
0.2520
0.2720
0.3560
0.4200
0.4400
0.6240
0.6960
0.7640
1.2000
1.3200
Irms
3
(A)
1.79
1.68
1.48
1.40
1.31
1.12
1.08
0.93
0.86
0.83
0.70
0.62
0.57
0.55
0.47
0.45
0.39
0.37
0.35
8.75
7.00
5.75
5.50
4.65
4.20
3.90
3.80
3.55
3.00
2.65
2.30
2.10
2.05
1.90
1.70
1.60
1.35
1.25
1.15
1.15
1.10
0.95
0.85
Isat
4
(A)
1.85
1.80
1.73
1.45
1.35
1.25
1.20
1.00
0.90
0.85
0.75
0.65
0.60
0.55
0.50
0.45
0.40
0.40
0.35
13.75
12.50
10.00
8.25
6.50
6.40
5.30
5.25
4.40
4.00
3.25
2.90
2.75
2.50
2.25
1.85
1.80
1.70
1.55
1.30
1.20
1.15
1.10
1.05
Accetek Electronics (Shenzhen) Co., Ltd.
www.accetek.com
Ver.:2MA‐2012E
5
Domestic Chip Exchange
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