SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 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
• 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 +125°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part Number
SD52-1R2-R
SD52-2R2-R
SD52-3R5-R
SD52-4R7-R
SD52-6R8-R
SD52-100-R
SD52-150-R
SD52-220-R
SD52-270-R
SD52-330-R
SD52-470-R
SD52-680-R
SD52-101-R
SD52-151-R
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
150
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
150
Part
Marking
A
B
C
D
E
F
G
H
J
K
L
M
N
O
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
0.31
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
0.28
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
1.6100
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
17.00
(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate
ΔT
of 40°C without core loss. It is recommend-
ed 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.
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 max
m
5.6 max
m
2.0
2 plcs
1.3
2 plcs
SCHEMATIC
LOW PROFILE SHIELDED DRUM (SD52)
1
2
6.0
2
SIDE VIEW
2.0 max
m
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)
PM-111
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)
Inductance Characteristics
100
90
80
70
OCL vs Isat
SD52
OCL (%)
60
50
40
30
20
LOW PROFILE SHIELDED DRUM (SD52)
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
% of Isat
PM-112
SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Core Loss
Irms DERATING WITH CORE LOSS
% of Losses from Irms (maximum)
% of pplied Volt-μScond
A
e
LOW PROFILE SHIELDED DRUM (SD52)
PM-113
Real-time operating system RTOS
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