SD3110 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.1mm x 3.1mm x 1.0mm shielded drum core
• Ferrite core material
• Inductance range from 0.5uH to 220uH
• Current range from 2.27 Amps to 0.106 Amps
• Frequency range up to 1MHz
Applications
• Cellular phones, Digital cameras, CD players, PDA’s
• Small LCD displays
• LED driver and LED flash circuits
• Hard disk drives
• Backlighting
• EL panel
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number
Rated
Inductance
(µH)
0.50
0.82
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
OCL (1)
(µH)
0.44+/-30%
0.82+/-30%
1.05+/-30%
1.60+/-30%
2.27+/-30%
3.48+/-30%
4.96+/-30%
6.70+/-30%
8.01+/-30%
10.18+/-30%
15.32+/-20%
21.49+/-20%
32.72+/-20%
46.29+/-20%
68.04+/-20%
82.65+/-20%
101+/-20%
149+/-20%
219+/-20%
Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Packaging
• Supplied in tape and reel packaging, 4100 per reel
Irms (2)
Amperes
1.54
1.30
1.21
0.99
0.82
0.72
0.59
0.54
0.48
0.44
0.36
0.30
0.26
0.22
0.179
0.167
0.146
0.127
0.106
Isat (3)
Amperes
2.27
1.67
1.47
1.19
1.00
0.81
0.68
0.58
0.53
0.47
0.38
0.32
0.26
0.22
0.182
0.166
0.150
0.123
0.120
SD3110-R50-R
SD3110-R82-R
SD3110-1R0-R
SD3110-1R5-R
SD3110-2R2-R
SD3110-3R3-R
SD3110-4R7-R
SD3110-6R8-R
SD3110-8R2-R
SD3110-100-R
SD3110-150-R
SD3110-220-R
SD3110-330-R
SD3110-470-R
SD3110-680-R
SD3110-820-R
SD3110-101-R
SD3110-151-R
SD3110-221-R
DCR (Ω)
typ. @
20°C
0.0420
0.0589
0.0683
0.103
0.149
0.195
0.285
0.346
0.432
0.505
0.764
1.13
1.50
2.06
3.13
3.57
4.72
6.16
9.46
K-factor
(4)
216
191
169
137
115
93
78
67
61
54
44
37
30
25
21
19
17
14
12
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 30% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*∆I, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
∆I
(Peak to peak ripple current in Amps).
SD3110 Series
Low Profile Power Inductors
Mechanical Diagrams
Marking
3.1 max.
0.6 typ.
1.0
2 plcs
4.0 Max.
2.0 typ.
3.6 max
1.0 max
2.0
2 plcs
4.0
3.1 max.
1.0 typical
Dimensions are in millimeters.
Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).
4.0
8.0
2.0
1.75
4.2
Bo
B1
3.2
3.2
5.5
12.0
+/-0.3
Packaging Information
mm
A1=0.90
Ao=3.9mm
Bo=3.6mm
B1=1.25mm
Ko=1.2mm
Ao
Ko
A1
Parts packaged on 13" Diameter reel,
4,100 parts per reel.
Core Loss
10
1MHz
500kHz
0.1
Core Loss (W)
300kHz
200kHz
100kHz
50kHz
1
0.01
0.001
0.0001
0.00001
0.000001
1
10
Bp-p (mT)
100
1000
SD3110 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
100
90
80
70
Temp.Rise(°C)
60
50
40
30
20
10
0
0
0.04
0.08
0.12
0.16
0.2
0.24
0.28
0.32
0.36
Total Loss (W)
Inductance Characteristics
120%
110%
100%
90%
80%
OCL Vs Isat
% of OCL
70%
60%
50%
40%
30%
20%
10%
0%
0%
10%
20%
30%
40%
50%
60%
70%
% of Isat
80%
-40°C
+25°C
+85°C
90% 100% 110% 120% 130% 140%
PM-4137 3/07
© Cooper Electronic
Technologies 2007
Visit us on the Web at www.cooperbussmann.com
1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487
Tel: +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.
Analogue and Mixed Signal
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