Cooper DR1050-4R7-R Low profile power inductor Datasheet

DR1050 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductor
• 10.3mm x 10.5mm x 5.0mm shielded drum core
• Ferrite core material
• Inductance range from 0.7µH to 1000µH
• Current range from 13.5 Amps to 0.43 Amps
• Frequency range up to 1MHz
Applications
• Computer, DVD players, and portable power devices
• Notebook power, LCD panels
• DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
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
DR1050-R80-R
DR1050-1R5-R
DR1050-2R2-R
DR1050-3R3-R
DR1050-4R7-R
DR1050-6R8-R
DR1050-8R2-R
DR1050-100-R
DR1050-120-R
DR1050-150-R
DR1050-180-R
DR1050-220-R
DR1050-270-R
DR1050-330-R
DR1050-390-R
DR1050-470-R
DR1050-560-R
DR1050-680-R
DR1050-820-R
DR1050-101-R
DR1050-121-R
DR1050-151-R
DR1050-181-R
DR1050-221-R
DR1050-271-R
DR1050-331-R
DR1050-391-R
DR1050-471-R
DR1050-561-R
DR1050-681-R
DR1050-821-R
DR1050-102-R
Rated
Inductance
(µH)
0.8
1.5
2.2
3.3
4.7
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Packaging
• Supplied in tape and reel packaging, 500 per reel
OCL (1)
µH±30%
Irms(2)
Amperes
Isat (3)
Amperes
0.70
1.37
2.27
3.21
4.43
6.30
8.09
10.1
11.6
14.8
17.5
23.5
26.9
34.3
38.3
47.1
56.7
67.2
84.4
97.5
118.3
149.2
183.7
221.8
263.5
320.6
396.5
480.5
572.6
707.9
818.7
1000.2
9.70
8.60
7.52
6.50
6.13
5.45
5.24
4.80
3.94
3.80
3.39
3.12
2.82
2.56
2.35
2.06
1.96
1.84
1.60
1.52
1.30
1.26
1.18
1.00
0.96
0.83
0.76
0.64
0.62
0.56
0.54
0.43
13.50
10.50
9.25
8.20
6.70
5.80
5.00
4.58
4.10
3.70
3.30
3.00
2.80
2.50
2.35
2.10
1.94
1.70
1.58
1.45
1.30
1.15
1.08
0.98
0.90
0.80
0.72
0.62
0.60
0.55
0.50
0.48
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ∆T 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 Amperes peak for approximately 35% rolloff (@25°C)
DCR (Ω)
mΩ @20°C
(Typical)
3.2
4.0
5.6
8.0
9.5
13.0
15.1
18.0
24.3
26.0
32.8
38.7
42.6
57.5
60.7
89.0
98.0
111
147
164
223
238
273
377
410
554
648
855
970
1095
1185
1528
DCR (Ω)
mΩ @20°C
(Maximum)
4.0
5.0
6.8
10.0
11.9
16.5
19.0
22.5
30.4
32.5
41.0
48.4
53.3
71.9
75.9
111
123
139
184
205
279
298
341
472
513
693
810
1069
1213
1369
1481
1950
K-factor
(4)
20.47
14.62
11.37
9.30
7.87
6.82
6.02
5.39
4.87
4.45
4.09
3.53
3.30
2.92
2.77
2.50
2.27
2.09
1.86
1.73
1.57
1.40
1.26
1.15
1.06
0.96
0.86
0.78
0.72
0.64
0.60
0.54
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*∆I, B p-p(mT), K: (K factor from table), L: (Inductance in µH),
∆I (Peak to peak ripple current in Amps).
(5) Part Number Definition: DR1050-xxx-R
DR1050 = 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
DR1050 Series
Low Profile Power Inductors
Mechanical Diagrams
TOP VIEW
FRONT VIEW
BOTTOM VIEW
10.3 max.
3.0
1
RECOMMENDED PCB LAYOUT
3.3
5.0 max.
1.2
SCHEMATI C
1
1.6
XXX
wwlly R
10.5 max.
LEFT VIEW
7.7
7.3
2
2
Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.
Packaging Information
1.5 dia
+0.1/-0.0
4.0
1.5 dia
min
2.0
A
1.75
12.0
Bo
B1
Ko
24.0
+/-0.3
XX X
wwlly R
A1
16.0
Ao
SECTION A-A
Ao=10.8 mm
Bo=11.0 mm
A1=10.5 mm
B1=10.7 mm
Ko=5.3 mm
A
User direction of feed
Parts packaged on 13" Diameter reel,
500 parts per reel.
Core Loss
10
1MHz
Core Loss (W)
1
500kHzz300kHzz
200kHzz
100kHzz
0. 1
0. 01
0. 001
0. 0001
1
10
100
Bp-p (mT)
1000
DR1050 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
Temperature Rise vs. Total Loss
160.00
Temperature Rise (°C)
140.00
120.00
100.00
80.00
60.00
40.00
20.00
0.00
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Total Loss (W)
Inductance Characteristics
OCL vs. ISAT
120.0%
100.0%
% of OCL
80.0%
60.0%
40.0%
-40 Deg. C
+25 Deg. C
+85 Deg. C
20.0%
0.0%
0%
20%
40%
60%
80%
100%
120%
140%
% of ISAT
PM-4139 3/07
© Cooper Electronic
Technologies 2007
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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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