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
•Ferrite core material
Applications
•Digital cameras, CD players, cellular phones, and PDAs
•PCMCIA cards
•GPS systems
Environmental Data
•Storage temperature range: -40°C to +125°C
•Operating ambient temperature range: -40°C to +85°C
(range is application specific). Temperature rise is
approximately 40°C at rated rms current
•Solder reflow temperature: +260°C max. for 10 seconds
max.
Packaging
•Supplied in tape and reel packaging, 3800 (SD10,
SD12, SD14 and SD18), 2900 (SD20 and SD25)
per reel
SD Series
High Power Density,
Low Profile, Shielded Inductors
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆Tof40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.
(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.
PartNumber Rated OCL (1) Part Irms (2) Isat (3) DCR (4) Volt
Inductance +/-20% Marking Amperes Amperes (Ω) u-sec
(µH) (µH) Typ. Typ.
SD10-R47-R 0.470 0.453 A 2.59 3.54 0.0249 2.1
SD10-1R0-R 1.00 1.119 B1.93 2.25 0.0448 3.3
SD10-1R5-R 1.50 1.563 C 1.60 1.91 0.0653 3.9
SD10-2R2-R 2.20 2.081 D1.35 1.65 0.0912 4.5
SD10-3R3-R 3.30 3.339 E 1.24 1.31 0.1078 5.7
SD10-4R7-R 4.70 4.893 F1.04 1.08 0.1535 6.9
SD10-6R2-R 6.20 6.743 G 0.94 0.92 0.218 8.1
SD10-8R2-R 8.20 8.889 H 0.800 0.800 0.2607 9.3
SD10-100-R 10.0 10.07 J0.760 0.752 0.336 9.9
SD10-150-R 15.0 15.55 K 0.613 0.605 0.4429 12.3
SD10-220-R 22.0 22.21 L0.498 0.506 0.6718 14.7
SD10-330-R 33.0 32.20 M 0.412 0.420 0.9807 17.7
SD10-470-R 47.0 46.63 N 0.337 0.349 1.47 21.3
SD10-680-R 68.0 70.01 O 0.301 0.285 1.84 26.1
SD10-820-R 82.0 83.48 P 0.258 0.261 2.50 28.5
SD10-101-R 100 102.0 Q 0.225 0.236 3.29 31.5
SD10-151-R 150 149.2 R 0.200 0.195 4.15 38.1
SD10-221-R 220 222.2 S 0.161 0.160 6.41 46.5
SD10-331-R 330 330.4 T 0.130 0.131 9.83 56.7
SD10-471-R 470 468.3 U 0.117 0.110 12.10 67.5
SD12-R47-R 0.470 0.490 A 3.19 3.86 0.0246 2.84
SD12-1R2-R 1.20 1.21 B 2.62 2.45 0.0366 4.47
SD12-1R5-R 1.50 1.69 C 2.19 2.08 0.0521 5.28
SD12-2R2-R 2.20 2.25 D 1.83 1.80 0.0747 6.09
SD12-3R3-R 3.30 3.61 E 1.55 1.42 0.1043 7.71
SD12-4R7-R 4.70 4.41 F1.46 1.29 0.1177 8.53
SD12-6R2-R 6.20 6.25 G1.21 1.08 0.1699 10.15
SD12-8R2-R 8.20 8.41 H 1.02 0.931 0.2399 11.77
SD12-100-R 10.0 10.89 J0.938 0.818 0.2844 13.40
SD12-150-R 15.0 15.21 K0.782 0.692 0.4089 15.83
SD12-220-R 22.0 22.09 L 0.628 0.574 0.6338 19.08
SD12-330-R 33.0 32.49 M 0.519 0.474 0.9289 23.14
SD12-470-R 47.0 47.61 N0.428 0.391 1.37 28.01
SD12-680-R 68.0 68.89 O0.341 0.325 2.16 33.70
RoHS
2002/95/EC
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆Tof40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
(3) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.
(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.
Part Number Rated OCL (1) Part Irms (2) Isat (3) DCR (4) Volt
Inductance +/-20% Marking Amperes Amperes (Ω) u-sec
(µH) (µH) Typ. Typ.
SD12-820-R 82.0 82.81 P 0.326 0.297 2.36 36.95
SD12-101-R 100 98.0 Q 0.308 0.273 2.64 40.19
SD12-151-R 150 151.3 R 0.251 0.220 3.96 49.94
SD12-221-R 220 222.0 S 0.229 0.181 4.76 60.49
SD12-331-R 330 334.9 T 0.186 0.148 7.25 74.30
SD12-471-R 470 462.3 U 0.167 0.126 8.95 87.29
SD12-681-R 680 670.8 V 0.149 0.104 11.30 105
SD12-821-R 820 800.9 W 0.129 0.095 14.93 115
SD12-102-R 1000 992.3 X 0.121 0.086 17.20 128
SD14-R58-R 0.58 0.61 A 3.52 4.84 0.0220 3.38
SD14-R87-R 0.87 0.88 B 3.2 3.96 0.0243 4.13
SD14-1R2-R 1.2 1.23 C 2.7 3.35 0.0344 4.88
SD14-1R5-R 1.5 1.63 D 2.53 2.91 0.0390 5.63
SD14-2R0-R 2 2.09 E 2.37 2.56 0.0445 6.38
SD14-2R5-R 2.5 2.62 F 2.05 2.29 0.0595 7.1
SD14-3R2-R 3.2 3.19 G 1.94 2.08 0.0663 7.9
SD14-4R5-R 4.5 4.53 H 1.64 1.74 0.0935 9.4
SD14-6R9-R 6.9 6.98 J 1.35 1.41 0.1363 11.6
SD14-8R8-R 8.8 8.88 K 1.14 1.25 0.1913 13.1
SD14-100-R 10 9.93 L 1.1 1.18 0.2058 13.9
SD14-150-R 15 14.68 M 0.98 0.969 0.2609 16.9
SD14-220-R 22 21.93 N 0.806 0.793 0.3853 20.6
SD14-330-R 33 32.55 O 0.654 0.651 0.5852 25.1
SD14-470-R 47 47.57 P 0.525 0.538 0.9055 30.4
SD14-680-R 68 68.21 Q 0.474 0.449 1.11 36
SD14-820-R 82 83 R 0.408 0.407 1.50 40
SD14-101-R 100 99.25 S 0.386 0.373 1.68 44
SD14-151-R 150 152.4 T 0.315 0.301 2.52 54
SD14-221-R 220 222 U 0.258 0.249 3.77 66
SD14-331-R 330 335.1 V 0.206 0.203 5.92 81
SD14-471-R 470 471.4 W 0.173 0.171 8.34 96
SD14-681-R 680 683.3 X 0.156 0.142 10.3 115
SD14-821-R 820 823.4 Y 0.134 0.129 13.9 126
SD14-102-R 1000 1008 Z 0.126 0.117 15.8 140
SD18-R47-R 0.47 0.49 A 3.58 4.63 0.0201 2.35
SD18-R82-R 0.82 0.81 B 3.24 3.60 0.0247 3.02
SD18-1R2-R 1.20 1.21 C 2.97 2.95 0.0294 3.70
SD18-1R5-R 1.50 1.69 D 2.73 2.49 0.0345 4.37
SD18-2R2-R 2.20 2.25 E 2.55 2.16 0.0398 5.04
SD18-3R3-R 3.30 3.61 F 2.07 1.71 0.0605 6.38
SD18-4R7-R 4.70 4.41 G 1.77 1.54 0.0824 7.06
SD18-6R2-R 6.20 6.25 H 1.61 1.30 0.1000 8.40
SD18-8R2-R 8.20 8.41 J 1.38 1.12 0.1351 9.74
SD18-100-R 10.0 10.89 K 1.28 0.982 0.1584 11.09
SD18-150-R 15.0 15.21 L 1.06 0.831 0.2278 13.10
SD18-220-R 22.0 22.09 M 0.876 0.689 0.3366 15.79
SD18-330-R 33.0 32.49 N 0.715 0.568 0.5057 19.15
SD18-470-R 47.0 47.61 O 0.578 0.470 0.7732 23.18
SD18-680-R 68.0 68.89 P 0.514 0.390 0.9798 27.89
SD18-820-R 82.0 82.81 Q 0.446 0.356 1.30 30.58
SD18-101-R 100 102.01 R 0.419 0.321 1.47 33.94
SD18-151-R 150 151.29 S 0.345 0.263 2.18 41.33
SD18-221-R 220 222.01 T 0.296 0.217 2.95 50.06
SD18-331-R 330 334.89 U 0.248 0.177 4.20 61.49
SD18-471-R 470 479.61 V 0.201 0.148 6.39 73.58
SD18-681-R 680 681.21 W 0.167 0.124 9.28 87.70
SD18-821-R 820 823.69 X 0.145 0.113 12.35 96.43
SD18-102-R 1000 1004 Y 0.136 0.102 14.01 107
SD Series
High Power Density,
Low Profile, Shielded Inductors
Part Number Rated OCL (1) Part Irms (2) Isat (3) DCR (4) Volt
Inductance +/-20% Marking Amperes Amperes (Ω) u-sec
(µH) (µH) Typ. Typ.
SD20-R47-R 0.47 0.490 A 3.59 4.00 0.0200 2.28
SD20-1R2-R 1.20 1.21 B 3.07 2.55 0.0275 3.58
SD20-1R5-R 1.50 1.69 C 2.88 2.15 0.0312 4.23
SD20-2R2-R 2.20 2.25 D 2.45 1.87 0.0429 4.88
SD20-3R3-R 3.30 3.61 E 2.17 1.47 0.0547 6.18
SD20-4R7-R 4.70 4.41 F 2.05 1.33 0.0612 6.83
SD20-6R2-R 6.20 6.25 G 1.89 1.12 0.0720 8.13
SD20-8R2-R 8.20 8.41 H 1.61 0.966 0.1000 9.43
SD20-100-R 10.0 9.61 J 1.53 0.903 0.1100 10.08
SD20-150-R 15.0 15.21 K 1.25 0.718 0.1655 12.68
SD20-220-R 22.0 22.09 L 1.12 0.596 0.2053 15.28
SD20-330-R 33.0 32.49 M 0.913 0.491 0.3100 18.53
SD20-470-R 47.0 47.61 N 0.745 0.406 0.4650 22.43
SD20-680-R 68.0 68.89 O 0.610 0.337 0.6947 26.98
SD20-820-R 82.0 82.81 P 0.576 0.308 0.7785 29.58
SD20-101-R 100 98.01 Q 0.495 0.283 1.06 32.18
SD20-151-R 150 151.3 R0.435 0.228 1.37 39.98
SD20-221-R 220 222.0 S 0.356 0.188 2.04 48.43
SD20-331-R 330 327.6 T0.294 0.155 2.99 58.83
SD20-471-R 470 470.9 U 0.263 0.129 3.74 70.53
SD20-681-R 680 681.2 V 0.216 0.107 5.56 84.83
SD20-821-R 820 823.7 W 0.204 0.098 6.22 93.28
SD20-102-R 1000 1004.9 X 0.172 0.088 8.73 103
SD25-R47-R 0.47 0.466 A 3.88 6.00 0.0177 2.13
SD25-R82-R 0.82 0.770 B 3.58 4.67 0.0208 2.74
SD25-1R2-R 1.20 1.15 C 3.33 3.81 0.0240 3.34
SD25-1R5-R 1.50 1.61 D 3.12 3.23 0.0274 3.95
SD25-2R2-R 2.20 2.14 E 2.93 2.80 0.0311 4.56
SD25-3R3-R 3.30 3.43 F 2.64 2.21 0.0384 5.78
SD25-4R7-R 4.70 5.03 G2.39 1.83 0.0467 6.99
SD25-6R8-R 6.80 6.93 H 2.19 1.56 0.0556 8.21
SD25-8R2-R 8.20 7.99 J 1.92 1.45 0.0724 8.82
SD25-100-R 10.0 10.35 K 1.80 1.27 0.0824 10.03
SD25-150-R 15.0 14.45 L 1.67 1.08 0.0956 11.86
SD25-220-R 22.0 22.81 M 1.34 0.857 0.1478 14.90
SD25-330-R 33.0 33.07 N 1.11 0.711 0.2149 17.94
SD25-470-R 47.0 47.89 O 0.919 0.592 0.3156 21.58
SD25-680-R 68.0 68.64 P 0.741 0.482 0.4850 25.84
SD25-820-R 82.0 82.17 Q 0.713 0.441 0.5242 28.27
SD25-101-R 100 100.79 R 0.670 0.398 0.5937 31.31
SD25-151-R 150 148.4 S 0.553 0.328 0.8723 38.00
SD25-221-R 220 222.4 T 0.446 0.268 1.34 46.51
SD25-331-R 330 332.2 U 0.359 0.219 2.07 56.85
SD25-471-R 470 472.4 V 0.293 0.184 3.10 67.79
SD25-681-R 680 677.2 W 0.262 0.154 3.88 81.17
SD25-821-R 820 826.7 X 0.230 0.139 5.04 89.68
SD25-102-R 1000 1003.4 Y 0.216 0.126 5.70 98.80
(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) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.
(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
Direction of feed
Ko
SECTION A-A
1.5 Dia
min.
Bo
B
Ao
A
8.0
8
0
4.00
2.00
±
0.05
1.5 Dia.
+0.1/-0.0
A
A
1.75
5.50
12.0
+/-0.3
0
1
2
SD20/25 Series
Dimensions are in millimeters.
Direction of feed
Ko
SECTION A-A
1.5 Dia
min.
Bo
Ao
8.0
4.00
2.00 ±0.05
1.5 Dia.
+0.1/-0.0
A
A
1.75
5.50
12.0
+/-0.3
1
2
SD12/14/18 Series
Packaging Information
ACTUAL SIZE
SD12
ACTUAL SIZE
SD14
ACTUAL SIZE
SD18
ACTUAL SIZE
SD20
ACTUAL SIZE
SD25
SD Series
High Power Density,
Low Profile, Shielded Inductors
Ao=5.45mm
Bo=5.45mm
Ko=2.00mm Parts packaged on 13" Diameter reel,
3,800 parts per reel.
Direction of feed
Ko
SECTION A-A
1.5 Dia
min.
Bo
B
Ao
A
8.0
4.00
2.00
2
±
0.05
1.5 Dia.
+0.1/-0.0
A
A
1.75
5.50
12.0
+/-0.3
0
1
2
SD10 Series
ACTUAL SIZE
SD10
Ao=5.45mm
Bo=5.45mm
Ko=1.20mm Parts packaged on 13" Diameter reel,
3,800 parts per reel.
Ao=5.45mm
Bo=5.45mm
Ko=2.70mm Parts packaged on 13" Diameter reel,
2,900 parts per reel.
Mechanical Diagrams
TOP VIEW
BOTTOM VIEW
RECOMMENDED PCB LAYOUT
SCHEMATIC
2
1
5.2
Max
5.2
Max
a
HT
1.5 Typ.
Ref.
1
2
SIDE VIEW
Pin # 1
identifier
Part marking
(Note A)
2
1
R2.250
2.975
5.950
2.975
2
4PAD LAYOUT
R2.250
5.95
9
1.0
2.975
2
5.15
2.575
2
2PAD LAYOUT
5.950
9
(see chart below)
Series HT
SD10 1.0mm max
SD12 1.2mm max
SD14 1.45mm max
SD18 1.8mm max
SD20 2.0mm max
SD25 2.5mm max
SDSeries
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: XX (indicates the product size code)
SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD12-330
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80
Idc (A)
Temperature Rise (Deg. C)
SD12-470
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70
Idc (A)
Temperature Rise (Deg. C)
SD10-220
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80
Idc (A)
Temperature Rise (Deg. C)
SD10-471
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.05 0.09 0.14 0.18 0.23
Idc (A)
Temperature Rise (Deg. C)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40
Idc (A)
SD14-150
Temperature Rise (Deg. C)
SD14-102
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.140 0.160 0.180 0.200
Idc (A)
Temperature Rise (Deg. C)
SD18-100
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Idc (A)
Temperature Rise (Deg. C)
SD18-101
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80
Idc (A)
Temperature Rise (Deg. C)
SD20-100
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.0 0.4 0.8 1.2 1.6 2.0 2.4
Idc (A)
Temperature Rise (Deg. C)
SD20-101
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80
Idc (A)
Temperature Rise (Deg. C)
Inductance Characteristics
OCL vs Isat
SD10
0
10
20
30
40
50
60
70
80
90
100
010 20 30 40 50 60 70 80 90 100 110 120 130 140
% of Isat
OCL (%)
OCL vs Isat
SD12
0
10
20
30
40
50
60
70
80
90
100
010 20 30 40 50 60 70 80 90 100 110 120
% of Isat
OCL (%)
OCL vs Isat
SD14
0
10
20
30
40
50
60
70
80
90
100
010 20 30 40 50 60 70 80 90 100 110 120 130
% of Isat
OCL (%)
OCL vs Isat
SD18
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
% of Isat
OCL (%)
OCL vs Isat
SD25
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
% of Isat
OCL (%)
OCL vs Isat
SD20
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
% of Isat
OCL (%)
SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD25-100
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Idc (A)
Temperature Rise (Deg. C)
SD25-101
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.00 0.20 0.40 0.60 0.80 1.00 1.20
Idc (A)
Temperature Rise (Deg. C)
Core Loss
Irms DERATING WITH CORE LOSS
%ofApplied Volt-µSecond
% of Losses from Irms (maximum)
SD Series
High Power Density,
Low Profile, Shielded Inductors
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T
el: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640
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.
Life Support Policy: Cooper Electronic Technologies does not authorize the use of any of its products for use in life support devices or systems without the
express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when
properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
PM-4311 3/07
© Cooper Electronic
Technologies 2007
