• Supplied in tape and reel packaging, 750 parts per 13 inch dia. reel
Part Number
SD8350-1R8-R
SD8350-3R9-R
SD8350-4R7-R
SD8350-6R8-R
SD8350-100-R
SD8350-150-R
SD8350-220-R
SD8350-330-R
SD8350-470-R
SD8350-680-R
SD8350-101-R
Rated
Inductance (µH)
1.8
3.9
4.7
6.8
10
15
22
33
47
68
100
OCL
1
µH±30%
1.5
3.2
4.2
6.8
9.9
13.6
20.4
31.4
44.9
65.1
99.7
Product Specifications
Irms
2
Isat
3
(Amps)
(Amps)
5.50
9.1
4.50
6.3
4.10
5.5
3.90
4.4
3.20
4.0
2.30
2.9
1.80
2.6
1.40
2.2
1.30
1.8
1.00
1.5
0.80
1.3
DCR mΩ
@ 20°C Typical
11.8
16.2
18.5
20.8
31.4
45.0
63.5
111.4
130.0
200.8
308.0
DCR mΩ
@ 20°C Maximum
14.0
19.0
22.0
25.0
36.0
53.0
75.0
125.0
150.0
240.0
360.0
K-factor
4
16.0
9.6
8.5
7.6
6.3
5.3
4.4
3.5
2.9
2.4
2.0
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)
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: SD8350-xxx-R
SD8350 = 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
0911
BU-SB111111
Page 1 of 4
Data Sheet: PM-4146
Dimensions - mm
RECOMM ENDED PCB LAYOUT
TOP VIEW
BOTTOM VIEW
FRONT VI EW
SCHEM A TIC
8.3 max.
2.5
1.2
4.5 max.
1.8
2.9
1
1
XX X
wwlly R
2
9.5 max.
6.3
LEFT VIEW
5.7
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, 750 parts per reel, 13” diameter reel.
Temperature Rise vs.Total Loss
140
120
Temperature Rise (°C)
100
80
60
40
20
0
0
0.1
0.2
0.3
0.4
0.5
Total Loss (W)
0.6
0.7
0.8
0.9
1
0911
BU-SB111111
Page 2 of 4
Data Sheet: PM-4146
Core Loss
10
1MHz
1
500kHz
300kHz
200kHz
100kHz
Core Loss (W)
0. 1
0. 01
0. 001
0. 000 1
1
10
Bp-p (mT)
100
100 0
Inductance Characteristics
OCL Vs. Isat
120%
100%
80%
% OCL
60%
+85 Deg. C
+25 Deg. C
-40 Deg. C
40%
20%
0%
0%
20%
40%
60%
% Isat
80%
100%
120%
140%
0911
BU-SB111111
Page 3 of 4
Data Sheet: PM-4146
Solder Reflow Profile
T
P
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
T
L
Preheat
A
t
t
P
T
C
-5°C
T
ab
l
e
1 -
S
t
a
n
da
r
d S
nP
b S
ol
de
r (T c)
Package
Thickness
<2.5mm
_
>2.5mm
Volume
mm
3
<350
235°C
220°C
Volume
mm
3
_
>350
220°C
220°C
Temperature
T
smax
T
ab
l
e
2 - L
ead
(P
b
) Fr
ee S
ol
de
r (T c)
T
smin
t
s
Volume
Package
mm
3
Thickness
<350
<1.6mm
260°C
1.6 – 2.5mm 260°C
>2.5mm
250°C
Time
Volume
mm
3
350 - 2000
260°C
250°C
245°C
Volume
mm
3
>2000
260°C
245°C
245°C
25°C
Time 25°C to Peak
Reference JDEC J-STD-020D
Profile Feature
Preheat
and Soak
• Temperature min. (Tsmin)
• Temperature max. (Tsmax)
• Time (Tsmin to Tsmax) (ts)
Average ramp up rate Tsmax to Tp
Liquidous temperature (T
L
)
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)
Time 25°C to Peak Temperature
Standard SnPb Solder
100°C
150°C
60-120 Seconds
3°C/
Second
Max.
183°C
60-150 Seconds
Table 1
20
Seconds**
6°C/ Second
Max.
6
Minutes Max.
Lead (Pb) Free
Solder
150°C
200°C
60-120 Seconds
3°C/
Second
Max.
217°C
60-150 Seconds
Table 2
30
Seconds**
6°C/ Second
Max.
8 Minutes Max.
*
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 uncon-
trolled. 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 label-
ing, can be reasonably expected to result in significant injury to the user.
