®
SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Description
• Octagonal shape shielded drum core
• 2mm max height
• Inductance range from 1.2uH to 100uH
• Current range from 3.14 to 0.35 Amps
• Ferrite shielded, low EMI
• RoHS compliant (-R option)
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
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
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
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
A
B
C
D
E
F
G
H
J
K
L
M
N
Packaging
• Supplied in tape and reel packaging, 3500 per reel
Irms (2)
Amperes
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
Isat (3)
Amperes
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
(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.
(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.
Option Code
-R
OPTION CODE
Description
RoHS compliant version
Mechanical Diagrams
SD52 Series
TOP VIEW
BOTTOM VIEW
1
RECOMMENDED PCB LAYOUT
5.2 max
2
Pin #1 indicator
Part marking
(See note A)
0.65
±0.10
5.2 m
max
5.6 max
m
2.0
2 plcs
1.3
2 plcs
SCHEMATIC
1
2
6.0
2
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: 52 (indicates the product size code)
®
SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Packaging Information
SD52 Series
4.00
1.5 Dia.
+0.1/-0.0
1.5 Dia
min.
2.00
±
0.05
A
1.75
2
3.0
B
Bo
5.50
10.2
0
12.0
+/-0.3
0
ACTUAL SIZE
SD52
Ao=5.72mm
Bo=5.72mm
Ko=2.30mm
Ko
A
Ao
SECTION A-A
80
8.0
A
Direction of feed
Parts packaged on 13" Diameter reel,
3,500 parts per reel.
Dimensions are in millimeters.
DC Current vs. Temperature
SD52-1R2
100.0
100.0
SD52-101
Temperature Rise (Deg. C)
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.00
Temperature Rise (Deg. C)
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
Idc (A)
Idc (A)
Rolloff
100
90
80
70
OCL vs Isat
SD52
OCL (%)
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
% of Isat
®
SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Core Loss
Irms DERATING WITH CORE LOSS
% of Losses from Irms (maximum)
% of Applied Volt-µSecond
PM-4311 7/05
© Cooper Electronic
Technologies 2005
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.
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.
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