ETC SD20-821

®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Description
• Six sizes of shielded drum core inductors with low
profiles (as low as 1.0mm) and high power density
• Inductance range from .47uH to 1000uH
• Current range from 6.00 to 0.088 Amps
• Ferrite shielded, low EMI
Applications
• Digital cameras, CD players, cellular phones, and PDAs
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range: -40C to +125C
• Operating ambient temperature range: -40C to +85C
(range is application specific). Temperature rise is
approximately 40C at rated rms current
• Infrared reflow temperature: +240C for 30 seconds
maximum
Part Number
SD10-R47
SD10-1R0
SD10-1R5
SD10-2R2
SD10-3R3
SD10-4R7
SD10-6R2
SD10-8R2
SD10-100
SD10-150
SD10-220
SD10-330
SD10-470
SD10-680
SD10-820
SD10-101
SD10-151
SD10-221
SD10-331
SD10-471
SD12-R47
SD12-1R2
SD12-1R5
SD12-2R2
SD12-3R3
SD12-4R7
SD12-6R2
SD12-8R2
SD12-100
SD12-150
SD12-220
SD12-330
SD12-470
SD12-680
SD12-820
SD12-101
SD12-151
Rated
Inductance
(µH)
0.470
1.00
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
0.470
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
OCL (1)
+/-20%
(µH)
0.453
1.119
1.563
2.081
3.339
4.893
6.743
8.889
10.07
15.55
22.21
32.20
46.63
70.01
83.48
102.0
149.2
222.2
330.4
468.3
0.490
1.21
1.69
2.25
3.61
4.41
6.25
8.41
10.89
15.21
22.09
32.49
47.61
68.89
82.81
98.0
151.3
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.
Packaging
• Supplied in tape and reel packaging, 3800 (SD10, SD12
and SD18), 2900 (SD20 and SD25), and 3500 (SD52)
per reel
Part
Marking
Irms (2)
Amperes
Isat (3)
Amperes
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
2.59
1.93
1.60
1.35
1.24
1.04
0.94
0.800
0.760
0.613
0.498
0.412
0.337
0.301
0.258
0.225
0.200
0.161
0.130
0.117
3.19
2.62
2.19
1.83
1.55
1.46
1.21
1.02
0.938
0.782
0.628
0.519
0.428
0.341
0.326
0.308
0.251
3.54
2.25
1.91
1.65
1.31
1.08
0.92
0.800
0.752
0.605
0.506
0.420
0.349
0.285
0.261
0.236
0.195
0.160
0.131
0.110
3.86
2.45
2.08
1.80
1.42
1.29
1.08
0.931
0.818
0.692
0.574
0.474
0.391
0.325
0.297
0.273
0.220
DCR (4)
(Ω)
Typ.
0.0249
0.0448
0.0653
0.0912
0.1078
0.1535
0.1870
0.2607
0.2888
0.4429
0.6718
0.9807
1.47
1.84
2.50
3.29
4.15
6.41
9.83
12.10
0.0246
0.0366
0.0521
0.0747
0.1043
0.1177
0.1699
0.2399
0.2844
0.4089
0.6338
0.9289
1.37
2.16
2.36
2.64
3.96
Volt
u-sec
Typ.
2.1
3.3
3.9
4.5
5.7
6.9
8.1
9.3
9.9
12.3
14.7
17.7
21.3
26.1
28.5
31.5
38.1
46.5
56.7
67.5
2.84
4.47
5.28
6.09
7.71
8.53
10.15
11.77
13.40
15.83
19.08
23.14
28.01
33.70
36.95
40.19
49.94
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Part Number
SD12-221
SD12-331
SD12-471
SD12-681
SD12-821
SD12-102
SD18-R47
SD18-R82
SD18-1R2
SD18-1R5
SD18-2R2
SD18-3R3
SD18-4R7
SD18-6R2
SD18-8R2
SD18-100
SD18-150
SD18-220
SD18-330
SD18-470
SD18-680
SD18-820
SD18-101
SD18-151
SD18-221
SD18-331
SD18-471
SD18-681
SD18-821
SD18-102
SD20-R47
SD20-1R2
SD20-1R5
SD20-2R2
SD20-3R3
SD20-4R7
SD20-6R2
SD20-8R2
SD20-100
SD20-150
SD20-220
SD20-330
SD20-470
SD20-680
SD20-820
SD20-101
SD20-151
SD20-221
SD20-331
SD20-471
SD20-681
SD20-821
SD20-102
SD25-R47
SD25-R82
SD25-1R2
SD25-1R5
SD25-2R2
Rated
Inductance
(µH)
220
330
470
680
820
1000
0.47
0.82
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.47
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.47
0.82
1.20
1.50
2.20
OCL (1)
+/-20%
(µH)
222.0
334.9
462.3
670.8
800.9
992.3
0.49
0.81
1.21
1.69
2.25
3.61
4.41
6.25
8.41
10.89
15.21
22.09
32.49
47.61
68.89
82.81
102.01
151.29
222.01
334.89
479.61
681.21
823.69
1004
0.490
1.21
1.69
2.25
3.61
4.41
6.25
8.41
9.61
15.21
22.09
32.49
47.61
68.89
82.81
98.01
151.3
222.0
327.6
470.9
681.2
823.7
1004.9
0.466
0.770
1.15
1.61
2.14
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.
Part
Marking
Irms (2)
Amperes
Isat (3)
Amperes
S
T
U
V
W
X
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
A
B
C
D
E
0.229
0.186
0.167
0.149
0.129
0.121
3.58
3.24
2.97
2.73
2.55
2.07
1.77
1.61
1.38
1.28
1.06
0.876
0.715
0.578
0.514
0.446
0.419
0.345
0.296
0.248
0.201
0.167
0.145
0.136
3.59
3.07
2.88
2.45
2.17
2.05
1.89
1.61
1.53
1.25
1.12
0.913
0.745
0.610
0.576
0.495
0.435
0.356
0.294
0.263
0.216
0.204
0.172
3.88
3.58
3.33
3.12
2.93
0.181
0.148
0.126
0.104
0.095
0.086
4.63
3.60
2.95
2.49
2.16
1.71
1.54
1.30
1.12
0.982
0.831
0.689
0.568
0.470
0.390
0.356
0.321
0.263
0.217
0.177
0.148
0.124
0.113
0.102
4.00
2.55
2.15
1.87
1.47
1.33
1.12
0.966
0.903
0.718
0.596
0.491
0.406
0.337
0.308
0.283
0.228
0.188
0.155
0.129
0.107
0.098
0.088
6.00
4.67
3.81
3.23
2.80
DCR (4)
(Ω)
Typ.
4.76
7.25
8.95
11.30
14.93
17.20
0.0201
0.0247
0.0294
0.0345
0.0398
0.0605
0.0824
0.1000
0.1351
0.1584
0.2278
0.3366
0.5057
0.7732
0.9798
1.30
1.47
2.18
2.95
4.20
6.39
9.28
12.35
14.01
0.0200
0.0275
0.0312
0.0429
0.0547
0.0612
0.0720
0.1000
0.1100
0.1655
0.2053
0.3100
0.4650
0.6947
0.7785
1.06
1.37
2.04
2.99
3.74
5.56
6.22
8.73
0.0177
0.0208
0.0240
0.0274
0.0311
Volt
u-sec
Typ.
60.49
74.30
87.29
105
115
128
2.35
3.02
3.70
4.37
5.04
6.38
7.06
8.40
9.74
11.09
13.10
15.79
19.15
23.18
27.89
30.58
33.94
41.33
50.06
61.49
73.58
87.70
96.43
107
2.28
3.58
4.23
4.88
6.18
6.83
8.13
9.43
10.08
12.68
15.28
18.53
22.43
26.98
29.58
32.18
39.98
48.43
58.83
70.53
84.83
93.28
103
2.13
2.74
3.34
3.95
4.56
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Part Number
Rated
Inductance
(µH)
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
SD25-3R3
SD25-4R7
SD25-6R8
SD25-8R2
SD25-100
SD25-150
SD25-220
SD25-330
SD25-470
SD25-680
SD25-820
SD25-101
SD25-151
SD25-221
SD25-331
SD25-471
SD25-681
SD25-821
SD25-102
OCL (1)
+/-20%
(µH)
3.43
5.03
6.93
7.99
10.35
14.45
22.81
33.07
47.89
68.64
82.17
100.79
148.4
222.4
332.2
472.4
677.2
826.7
1003.4
Part
Marking
Irms (2)
Amperes
Isat (3)
Amperes
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
2.64
2.39
2.19
1.92
1.80
1.67
1.34
1.11
0.919
0.741
0.713
0.670
0.553
0.446
0.359
0.293
0.262
0.230
0.216
2.21
1.83
1.56
1.45
1.27
1.08
0.857
0.711
0.592
0.482
0.441
0.398
0.328
0.268
0.219
0.184
0.154
0.139
0.126
Mechanical Diagrams
SD Series
RECOMMENDED PCB LAYOUT
TOP VIEW
SIDE VIEW
1
2 PAD LAYOUT
2
5.2
Max
Series
SD10
SD12
SD18
SD20
SD25
SCHEMATIC
1
5.95
9
HT
HT
1.0mm max
1.2mm max
1.8mm max
2.0mm max
2.5mm max
2.975
5.950
9
1
R2.250
1.0
2
2.975
R2.250
1.5 Typ.
Ref.
(see chart below)
4 PAD LAYOUT
BOTTOM VIEW
5.2
Max
a
Part marking
(Note A)
Volt
u-sec
Typ.
5.78
6.99
8.21
8.82
10.03
11.86
14.90
17.94
21.58
25.84
28.27
31.31
38.00
46.51
56.85
67.79
81.17
89.68
98.80
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.
Pin # 1
identifier
DCR (4)
(Ω)
Typ.
0.0384
0.0467
0.0556
0.0724
0.0824
0.0956
0.1478
0.2149
0.3156
0.4850
0.5242
0.5937
0.8723
1.34
2.07
3.10
3.88
5.04
5.70
2
2.975
5.950
2
2.575
2
5.15
A) Part Marking: Line 1: (1st digit indicates the inductance value per part marking
designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: 12 (indicates the product size code)
2
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Packaging Information
SD10 Series
4.00
2
2.00
± 0.05
1.5 Dia
min.
1.5 Dia.
+0.1/-0.0
A
1.75
1
12.0
+/-0.3
0
B
Bo
5.50
2
Ao=5.45mm
Bo=5.45mm
Ko=1.20mm
Ko
A
A
Ao
8.0
SECTION A-A
Parts packaged on 13" Diameter reel,
3,800 parts per reel.
Direction of feed
SD12/18 Series
ACTUAL SIZE
SD10
4.00
2.00 ± 0.05
1.5 Dia
min.
1.5 Dia.
+0.1/-0.0
1.75
A
1
12.0
+/-0.3
Bo
5.50
2
Ao=5.45mm
Bo=5.45mm
Ko=2.00mm
Ko
ACTUAL SIZE
SD12
ACTUAL SIZE
SD18
A
Ao
8.0
SECTION A-A
Parts packaged on 13" Diameter reel,
3,800 parts per reel.
Direction of feed
SD20/25 Series
4.00
2.00 ± 0.05
1.5 Dia
min.
1.5 Dia.
+0.1/-0.0
1.75
A
1
12.0
+/-0.3
0
B
Bo
5.50
2
Ko
Ao=5.45mm
Bo=5.45mm
Ko=2.70mm
A
Ao
SECTION A-A
Dimensions are in millimeters.
ACTUAL SIZE
SD20
ACTUAL SIZE
SD25
A
80
8.0
Direction of feed
Parts packaged on 13" Diameter reel,
2,900 parts per reel.
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD10-471
100.0
90.0
90.0
Temperature Rise (Deg. C)
Temperature Rise (Deg. C)
SD10-220
100.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
10.0
0.0
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.0
0.00
0.80
0.05
0.09
0.14
Idc (A)
0.23
SD12-470
SD12-330
100.0
100.0
90.0
Temperature Rise (Deg. C)
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.0
0.00
0.80
0.10
0.20
0.30
Idc (A)
0.40
0.50
0.60
0.70
Idc (A)
SD18-100
SD18-101
100.0
100.0
Temperature Rise (Deg. C)
Temperature Rise (Deg. C)
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
10.0
0.0
0.00
0.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0.10
0.20
0.30
0.50
0.60
0.70
0.80
SD20-101
SD20-100
100.0
100.0
90.0
Temperature Rise (Deg. C)
Temperature Rise (Deg. C)
0.40
Idc (A)
Idc (A)
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.0
0.4
0.8
1.2
1.6
2.0
0.0
0.00
2.4
0.10
0.20
0.30
Idc (A)
0.40
0.50
0.60
0.70
0.80
Idc (A)
SD25-100
SD25-101
100.0
100.0
Temperature Rise (Deg. C)
90.0
Temperature Rise (Deg. C)
Temperature Rise (Deg. C)
0.18
Idc (A)
80.0
70.0
60.0
50.0
40.0
30.0
20.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
10.0
0.0
0.0
0.5
1.0
1.5
Idc (A)
2.0
2.5
3.0
0.0
0.00
0.20
0.40
0.60
Idc (A)
0.80
1.00
1.20
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Rolloff
OCL vs Isat
SD12
100
100
90
90
80
80
70
70
OCL (%)
OCL (%)
OCL vs Isat
SD10
60
50
40
60
50
40
30
30
20
20
10
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
0
140
0
10
20
30
40
50
% of Isat
OCL vs Isat
SD18
70
80
90
100
110
120
OCL vs Isat
SD20
100
100
90
90
80
80
70
70
OCL (%)
OCL (%)
60
% of Isat
60
50
60
50
40
40
30
30
20
20
10
10
0
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0
160
10
20
30
40
50
60
70
% of Isat
80
90
% of Isat
OCL vs Isat
SD25
100
90
80
OCL (%)
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
% of Isat
Core Loss
% of Losses from Irms (maximum)
Irms DERATING WITH CORE LOSS
% of Applied Volt-µSecond
120
130
140
150
100
110
120
130
140
150
160
170
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
Part Number
Rated
Inductance
(µH)
1.20
2.20
3.50
4.70
6.80
10.0
15.0
22.0
27.0
33.0
47.0
68.0
100
SD52-1R2
SD52-2R2
SD52-3R5
SD52-4R7
SD52-6R8
SD52-100
SD52-150
SD52-220
SD52-270
SD52-330
SD52-470
SD52-680
SD52-101
OCL (1)
+/-20%
(µH)
1.20
2.20
3.50
4.70
6.80
10.0
15.0
22.0
27.0
33.0
47.0
68.0
100
Part
Marking
Irms (2)
Amperes
Isat (3)
Amperes
A
B
C
D
E
F
G
H
J
K
L
M
N
2.33
1.98
1.73
1.63
1.39
1.11
0.97
0.86
0.73
0.70
0.58
0.47
0.39
3.14
2.30
1.82
1.64
1.28
1.11
0.88
0.73
0.65
0.61
0.50
0.42
0.35
DCR (4)
(Ω)
Typ.
0.0279
0.0385
0.0503
0.0568
0.0777
0.1215
0.1618
0.2042
0.2864
0.3074
0.4465
0.6829
1.0000
Volt
u-sec
Typ.
1.49
2.03
2.57
2.84
3.65
4.19
5.27
6.35
7.16
7.70
9.32
11.21
13.37
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.
Mechanical Diagrams
SD52 Series
BOTTOM VIEW
1
TOP VIEW
RECOMMENDED PCB LAYOUT
Pin #1 indicator
5.2
2 max
5.6 max
m
1.3
2 plcs
Part marking
(See note A)
SCHEMATIC
1
2.0
2 plcs
0.65
±0.10
2
2
6.0
5.2 max
m
SIDE VIEW
2.0 m
max
A) Part Marking: Line 1: (1st digit indicates the inductance value per part marking
designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: 12 (indicates the product size code)
Packaging Information
SD52 Series
4.00
2.00 ± 0.05
1.5 Dia
min.
1.5 Dia.
+0.1/-0.0
A
1.75
2
3.0
10.2
0
B
Bo
5.50
Ao=5.72mm
Bo=5.72mm
Ko=2.30mm
Ko
A
Ao
SECTION A-A
Dimensions are in millimeters.
12.0
+/-0.3
0
ACTUAL SIZE
SD52
A
80
8.0
Direction of feed
Parts packaged on 13" Diameter reel,
3,500 parts per reel.
®
SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD52-1R2
100.0
90.0
90.0
Temperature Rise (Deg. C)
Temperature Rise (Deg. C)
SD52-101
100.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.00
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Idc (A)
Idc (A)
Rolloff
OCL vs Isat
SD52
100
90
80
OCL (%)
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
% of Isat
PM-4311 1/03
© Cooper Electronic
Technologies 2003
Visit us on the Web at www.cooperET.com
3601 Quantum Boulevard Boynton Beach, Florida 33426-8638
Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper
Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of
any products. Cooper Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in this
bulletin. Once a product has been selected, it should be tested by the user in all possible applications.