SD53 Series
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Octagonal shape utilizes board space
• 5.2mm x 5.2mm x 3.0mm surface mount package
• Shielded drum core reduces EMI
• Ferrite core material
• Inductance range from 1.1uH to 100uH
• Current range from 4.08 Amps to 0.44 Amps
Applications
• High Power LED driver
• White LED and OLED displays
• DSL modems, digital cameras
• Buck, Boost Inductor
• Cellular phones, Smart phones
• MP3 players, Digital radio player
• PDA, Palmtop, and wireless handhelds
• Battery power, TFT - LCD Bias supply
Packaging
• Supplied in tape and reel packaging, 2600 per reel
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)
OCL (1)
Part
Irms (2)
Isat (3)
DCR
Ω @20°C
(Typical)
0.017
0.023
0.029
0.039
0.059
0.077
0.122
0.179
0.221
0.303
0.452
DCR
Ω @20°C
(Maximum)
0.020
K-factor
(4)
μH 20%
Marking
Amperes
Amperes
SD53-1R1-R
SD53-2R0-R
SD53-3R3-R
SD53-4R7-R
SD53-6R8-R
SD53-100-R
SD53-150-R
SD53-220-R
SD53-330-R
SD53-470-R
SD53-680-R
SD53-101-R
1.10
2.00
3.30
4.70
6.80
10.0
15.0
22.0
33.0
47.0
68.0
100
1.10
2.00
3.30
4.70
6.80
10.0
15.0
22.0
33.0
47.0
68.0
100
A
B
C
D
E
F
G
H
I
3.25
2.64
2.26
2.01
1.65
1.41
1.10
0.81
0.75
0.64
0.52
0.44
4.80
3.30
2.60
2.10
1.85
1.40
1.10
0.94
0.76
0.64
0.58
0.45
48
35
28
21
20
15
12
10
8
0.027
0.034
0.045
0.068
0.090
0.142
0.208
0.257
J
K
L
0.352
0.525
0.801
7
6
5
0.689
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(4) K-factor: Used to determine B p-p for core loss (see graph).
(2) Irms: DC current for an approximate ΔT 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.
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD53-xxx-R
SD53 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant
(3) Isat Amperes peak for approximately 30% rolloff (@25°C)
Mechanical Diagrams
Dimensions are in millimeters.
Note A. Part Marking:
4 Digit Marking: Line 1: (1st digit: Indicates inductance value per Part Marking Designator in chart above); (2nd digit: Bi-weekly production date code);
(3rd digit: Last digit of the year produced), (4th digit: Manufacturing code). Line 2: 53 (Indicates the product size code)
PM-114