DR1050-R80-R Datasheet, PDF (1/3 Pages) Cooper Bussmann, Inc. – 125°C maximum total temperature operation Low profile surface mount inductor

DR1050 Series
Low Profile Power Inductors
Description
• 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
RoHS
2002/95/EC
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
Packaging
• Supplied in tape and reel packaging, 500 per reel
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
OCL (1)
µH±30%
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
Irms(2)
Amperes
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
Isat (3)
Amperes
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
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
(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)
(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