HALOGEN
Low-Profile Power Inductors
HF
Pb
FREE
SD8328 Series
Applications
•
•
•
•
•
•
•
•
Buck or boost inductor
Noise filtering output filter chokes
Notebook power/display
LCD Monitors/displays/televisions
Battery chargers, LCD bias supplies
Battery and Industrial power systems
Computer, DVD players
Portable power devices, DC-DC converters
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(ambient plus self temperature rise)
• Solder reflow temperature: J-STD-020D compliant
SMD Device
Description
•
•
•
•
•
•
•
•
•
Packaging
Halogen free, lead free
125°C maximum temperature operation
Low profile shielded drum core
9.5 x 8.3 x 3.0mm surface mount inductor
Ferrite core material
Inductance range from 2.7µH to 100µH
Current range from 0.8 Amps to 6.6 Amps
Frequency range up to 1MHz
RoHS Compliant
Part Number
SD8328-2R5-R
SD8328-3R3-R
SD8328-4R7-R
SD8328-7R3-R
SD8328-100-R
SD8328-150-R
SD8328-220-R
SD8328-330-R
SD8328-470-R
SD8328-680-R
SD8328-101-R
Rated
Inductance (µH)
2.5
3.3
4.7
7.3
10
15
22
33
47
68
100
OCL1
µH±30%
2.7
3.4
5.0
7.6
9.1
14.5
21.1
31.9
44.9
64.2
97.0
• Supplied in tape and reel packaging, 1280 parts per 13 inch dia. reel
Product Specifications
Irms2
Isat3
(Amps)
(Amps)
6.6
4.5
6.1
4.0
4.5
3.6
3.4
2.9
3.3
2.6
2.35
2.0
1.85
1.7
1.45
1.4
1.30
1.2
0.98
1.0
0.80
0.8
1. Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
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.
3. Isat Amps peak for approximately 35% rolloff (@25°C)
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DCR mΩ
@ 20°C Typical
12
14
19
30
36
53
76
120
150
220
330
DCR mΩ
@ 20°C Maximum
15.6
18.0
24.7
39
45
69
99
156
194
286
430
4. K-factor: Used to determine Bp-p for core loss (see graph).
Bp-p = K*L*ΔI, Bp-p (mT), K: (K factor from table), L: (Inductance in µH),
ΔI (Peak to peak ripple current in Amps).
5. Part Number Definition: SD8328-xxx-R
SD8328 = Product code and size; -xxx = Inductance value in µH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant
Page 1 of 4
Data Sheet: PM-4140
K-factor4
43
33
23
15
11
7.2
4.9
3.3
2.3
1.6
1.1
Dimensions - mm
BOTTOM VIEW
TOP VIEW
1
FRONT VIEW
2.5
typ
8.3
max
RECOMMENDED PCB LAYOUT
SCHEMATIC
2.9
1.2
typ
3.0
max
1
1.8
6.3
typ
9.5
max
XXX
wwlly R
5.7
LEFT VIEW
2
2
Part Marking: Coiltronics logo
xxx = Inductance value in μH. (R = Decimal point). If no R is present, third character = number of zeros
wwlly - or - wwllyy = Date code
R = Revision level
Packaging Information - mm
Supplied in tape-and-reel packaging, 1280 parts per reel, 13” diameter reel.
Temperature Rise vs.Total Loss
160
Temperature Rise (ºC)
140
120
100
80
60
40
20
0
0.0
0.2
0.4
0.6
0.8
Total Power Loss (W)
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Page 2 of 4
Data Sheet: PM-4140
1.0
Core Loss
10
500kHz
300kHz
1MHz
200kHz
1
Core Loss (W)
100kHz
0.1
0.01
0.001
0.0001
1
10
100
1000
Bp-p (mT)
Inductance Characteristics
OCL Vs. Isat
120.0%
100.0%
% OCL
80.0%
60.0%
+85 Deg.C
40.0%
+25 Deg.C
20.0%
-40 Deg.C
0.0%
0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
% Isat
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Page 3 of 4
Data Sheet: PM-4140
120.0%
Solder Reflow Profile
TP
TC -5°C
tP
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
Package
Thickness
<2.5mm
_2.5mm
>
Temperature
TL
Preheat
A
T smax
Table 1 - Standard SnPb Solder (T c)
t
Volume
mm3
<350
235°C
220°C
Volume
mm3
_
>350
220°C
220°C
Table 2 - Lead (Pb) Free Solder (T c)
Tsmin
25°C
ts
Package
Thickness
<1.6mm
1.6 – 2.5mm
>2.5mm
Time 25°C to Peak
Volume
mm3
<350
260°C
260°C
250°C
Volume
mm3
350 - 2000
260°C
250°C
245°C
Volume
mm3
>2000
260°C
245°C
245°C
Time
Reference JDEC J-STD-020D
Profile Feature
Preheat and Soak
• Temperature min. (Tsmin)
Standard SnPb Solder
100°C
Lead (Pb) Free Solder
150°C
• Temperature max. (Tsmax)
150°C
200°C
• Time (Tsmin to Tsmax) (ts)
Average ramp up rate Tsmax to Tp
Liquidous temperature (TL)
Time at liquidous (tL)
Peak package body temperature (TP)*
Time (tp)** within 5 °C of the specified classification temperature (Tc)
Average ramp-down rate (Tp to Tsmax)
60-120 Seconds
60-120 Seconds
3°C/ Second Max.
3°C/ Second Max.
183°C
60-150 Seconds
217°C
60-150 Seconds
Table 1
Table 2
20 Seconds**
30 Seconds**
6°C/ Second Max.
6°C/ Second Max.
6 Minutes Max.
8 Minutes Max.
Time 25°C to Peak Temperature
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
North America
Cooper Electronic Technologies
1225 Broken Sound Parkway NW
Suite F
Boca Raton, FL 33487-3533
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645
Cooper Bussmann
P.O. Box 14460
St. Louis, MO 63178-4460
Tel: 1-636-394-2877
Fax: 1-636-527-1607
Europe
Cooper Electronic Technologies
Cooper (UK) Limited
Burton-on-the-Wolds
Leicestershire • LE12 5TH UK
Tel: +44 (0) 1509 882 737
Fax: +44 (0) 1509 882 786
Cooper Electronic Technologies
Avda. Santa Eulalia, 290
08223
Terrassa, (Barcelona), Spain
Tel: +34 937 362 812
+34 937 362 813
Fax: +34 937 362 719
Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann
reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann 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 Bussmann 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.
© 2011 Cooper Bussmann
w w w. c o o p e r bu s s m a n n . c o m
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Page 4 of 4
Data Sheet: PM-4140