SMT POWER INDUCTORS
SMTDR 32/ 43/ 52/ 53/ 54/ 73/ 75/ 104/ 105
TYPE
Shape and Size : (Dimensions are in mm)
Features :
．Silver
Plated Type, Low cost design.
．High
power, High saturation inductors.
．Ideal
inductors for DC-DC conversion.
．Available
on tape and reel for auto surface
mounting.
Ordering Information :
SMT DR105 - 331 K
(1)
(2)
(3)
(4)
(1)Type :
Surface Mountable Type
.
(2)Style :
DR
Core :
OD=10mm, HT=5.4mm.
(3)Inductance :
331
for
330
uH.
(4)Inductance tolerance :
"M": ±20%; "L": ±15%; "K": ±10%
Inductance and rated current ranges :
．SMTDR32
．SMTDR43
．SMTDR52
．SMTDR53
．SMTDR54
．SMTDR73
．SMTDR75
．SMTDR104
．SMTDR105
1.0 ~ 330uH
1.0 ~ 68uH
1.2 ~ 470uH
1.0 ~ 470uH
10 ~ 220uH
10 ~ 330uH
10 ~ 470uH
10 ~ 560uH
10 ~ 820uH
2.2 ~ 0.12A
2.56 ~ 0.37A
3.5 ~ 0.16A
4.5 ~ 0.20A
1.44 ~ 0.35A
1.44 ~ 0.28A
2.30 ~ 0.34A
2.38 ~ 0.32A
2.60 ~ 0.24A
Characteristics :
．Rated
DC current : obtained when the inductance is
90% more than its initial value and temperature
rise
⊿t
=40℃ lower.
．Operating
temperature : -20
℃
to 80
℃.
Applications :
．Power
supply for VTRs.
．LCD
televisions.
．Notebook
PCs.
．Portable
communication equipment.
．DC/DC
converters,etc.
Test equipments :
L : HP4284A or HP4285A LCR meter.
DCR tested by Milli-ohm meter.
．Electrical
specifications at 25℃.
6.1
SMT POWER INDUCTORS
SMTDR 32 / 43 / 52 / 53 / 54
TYPE
Part No.
L
(µH)
1R0
1.0
1R2
1.2
1R4
1.4
1R5
1.5
0.055
1R8
1.8
0.070
2R2
2.2
0.085
2R7
2.7
0.100
3R3
3.3
0.120
3R9
3.9
0.125
4R7
4.7
0.135
5R6
5.6
0.145
6R8
6.8
0.20
8R2
8.2
0.25
100
10.0
0.32
0.10
120
12.0
0.35
0.12
150
15.0
0.46
0.14
180
18
0.52
0.15
220
22
0.65
0.18
270
27
0.75
0.20
330
33
0.92
0.23
390
39
1.12
0.32
470
47
1.27
0.37
560
56
1.50
0.42
680
68
2.00
0.46
820
82
2.15
0.60
101
100
2.85
0.70
121
120
3.40
0.93
151
150
4.20
1.10
181
180
4.50
1.38
221
220
5.70
1.57
271
270
8.50
331
330
9.50
391
471
Measuring Frequency :
1.0~8.2uH @ 7.96MHz 0.25V; 10~82uH @ 2.52MHz 0.25V; 100~470uH
Tolerance of Inductance :
SMTDR32 1.0~18uH (M) ± 20%; 22~330uH (K) ± 10%.
SMTDR52 1.2~18uH (M) ± 20%; 22~470uH (K) ± 10%.
SMTDR54 10~27uH (M) ± 20%; 33~220uH (K) ± 10%.
DR32
0.045
0.050
DC resistance (Ohm) Max
DR43
DR52
DR53
0.0487
0.03
0.050
0.03
0.0562
0.060
0.03
0.0637
0.065
0.03
0.0712
0.07
0.03
0.0787
0.08
0.04
0.0862
0.10
0.05
0.0937
0.12
0.06
0.1087
0.14
0.07
0.1257
0.15
0.08
0.1312
0.16
0.09
0.1462
0.17
0.10
0.182
0.20
0.13
0.210
0.23
0.16
0.235
0.25
0.19
0.338
0.30
0.21
0.378
0.35
0.28
0.522
0.40
0.32
0.540
0.50
0.38
0.587
0.55
0.42
0.844
0.65
0.52
0.937
0.75
0.50
1.117
0.95
0.68
1.20
0.82
1.40
1.10
1.75
1.20
2.00
1.50
2.60
1.80
3.00
2.00
3.70
2.90
4.30
3.30
6.00
3.70
6.70
4.90
DR54
DR32
2.20
2.10
1.70
1.65
1.60
1.40
1.04
1.00
1.00
0.95
0.95
0.92
0.90
0.85
0.75
0.70
0.60
0.55
0.50
0.48
0.45
0.30
0.26
0.23
0.20
0.18
0.16
0.15
0.14
0.10
0.09
Rated DC current (Amp) Max
DR43
DR52
DR53
2.56
4.50
4.20
4.20
2.52
4.00
4.10
1.95
3.70
3.70
1.75
3.50
3.50
1.58
3.20
3.20
1.44
2.70
2.80
1.33
2.40
2.60
1.15
2.00
2.50
0.99
1.80
2.40
0.95
1.50
2.20
0.84
1.40
2.00
1.05
1.30
1.80
0.97
1.10
1.75
0.85
1.05
1.70
0.74
1.00
1.60
0.68
0.90
1.50
0.62
0.85
1.40
0.56
0.75
1.10
0.52
0.70
1.00
0.44
0.60
0.90
0.42
0.55
0.85
0.37
0.50
0.80
0.45
0.65
0.40
0.60
0.35
0.58
0.25
0.43
0.22
0.41
0.20
0.38
0.18
0.35
0.17
0.28
0.16
0.260
0.15
0.200
DR54
1.44
1.40
1.30
1.23
1.11
0.97
0.88
0.80
0.72
0.68
0.61
0.58
0.52
0.48
0.40
0.38
0.35
@ 1kHz 0.25V
SMTDR43 1.0~27uH (M) ± 20%; 33~68uH (K) ± 10%.
SMTDR53 1.0~18uH (M) ± 20%; 22~470uH (K) ± 10%.
6.2
SMT POWER INDUCTORS
SMTDR 73/ 75 / 104 / 105
TYPE
Part No.
100
120
150
180
220
270
330
390
470
560
680
820
101
121
151
181
221
271
331
391
471
561
681
821
L
(µH)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
DC resistance (Ohm) Max
DR73
0.0803
0.0897
0.104
0.111
0.129
0.153
0.170
0.217
0.252
0.282
0.332
0.406
0.481
0.536
0.755
1.022
1.200
1.306
1.495
DR75
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.16
0.18
0.24
0.28
0.37
0.43
0.47
0.64
0.71
0.96
1.11
1.26
1.77
1.96
DR104
0.053
0.061
0.070
0.081
0.088
0.100
0.120
0.151
0.170
0.199
0.223
0.252
0.344
0.396
0.544
0.621
0.721
0.949
1.100
1.245
1.526
1.904
DR105
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.14
0.17
0.19
0.22
0.25
0.35
0.40
0.47
0.63
0.73
0.97
1.15
1.30
1.48
1.90
2.25
2.55
DR73
1.44
1.39
1.24
1.12
1.07
0.94
0.85
0.74
0.68
0.64
0.59
0.54
0.51
0.49
0.40
0.36
0.31
0.29
0.28
Rated DC current (Amp) Max
DR75
2.30
2.00
1.80
1.60
1.50
1.30
1.20
1.10
1.10
0.94
0.85
0.78
0.72
0.66
0.58
0.51
0.49
0.42
0.40
0.36
0.34
DR104
2.38
2.13
1.87
1.73
1.60
1.44
1.26
1.20
1.10
1.01
0.91
0.85
0.74
0.69
0.61
0.56
0.53
0.45
0.42
0.38
0.35
0.32
DR105
2.60
2.45
2.27
2.15
1.95
1.76
1.50
1.37
1.28
1.17
1.11
1.00
0.97
0.89
0.78
0.72
0.66
0.57
0.52
0.48
0.42
0.33
0.28
0.24
Measuring Frequency :
10~82uH @ 2.52MHz 0.25V; 100~330uH @ 1kHz 0.25V
Tolerance of Inductance :
SMTDR73 10~470uH (K) ± 10%; 56~330uH (K) ± 10%.
SMTDR75 10~470uH (K) ± 10%.
SMTDR104 10~47uH (M) ± 20%; 56~560uH (K) ± 10%.
SMTDR105 10~39uH (M) ± 20%; 47~820uH (K) ± 10%.
6.3
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