Technical Data
4139
Effective April 2016
Supersedes March 2007
DR1050
Shielded power inductors
Applications
•
•
•
•
•
•
•
LED/LCD backlighting
High definition televisions (HDTV)
Server and desktop power supplies
Graphics cards and battery powered systems
Point-of-load (POL) modules
Printers and peripherals
Portable electronics
Environmental Data
•
Storage temperature range (Component):
-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
Description
•
•
•
•
•
Shielded drum core
Inductance range from 0.7 μH to 1000 μH
Current range from 0.43 A to 13.5 A
10.5 mm x 10.3 mm footprint surface mount
package in a 5.0 mm height
Ferrite core material
Halogen free, lead free, RoHS compliant
•
Pb
HF
FREE
HALOGEN
•
•
Technical Data
4139
Effective April 2016
DR1050
Shielded power inductors
Product Specifications
OCL
1
(μH) ±30%
I
rms2
(A)
I
sat
3
(A)
DCR (mΩ)
typical
@ 20°C
DCR (mΩ)
maximum
@ 20°C
Part Number
5
K-factor
4
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
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
149
184
222
264
321
397
481
573
708
819
1000
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
13.5
10.5
9.3
8.2
6.7
5.8
5.0
4.6
4.1
3.7
3.3
3.0
2.8
2.5
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
3.2
4.0
5.6
8.0
10
13
15
18
24
26
33
39
43
58
61
89
98
111
147
164
223
238
273
377
410
554
648
855
970
1095
1185
1528
4.0
5.0
6.8
10
12
17
19
23
30
33
41
48
53
72
76
111
123
139
184
205
279
298
341
472
513
693
810
1069
1213
1369
1481
1950
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 (OCL) Test Parameters: 100 kHz, 0.1 Vrms, 0.0 Adc, +25 °C
2. I
rms
: DC current for an approximate temperature rise 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. I
sat
: Peak current for approximately 35% rolloff @ +25 °C
4. K-factor: 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: DR1050-xxx-R
DR1050 = Product code and size
-xxx= inductance value in μH, R= decimal point,
If no R is present then last character equals number of zeros
-R suffix = RoHS compliant
2
www.eaton.com/elx
DR1050
Shielded power inductors
Dimensions (mm)
Technical Data
4139
Effective April 2016
Part marking: inductance value in uH. R = decimal point. If no R is present then last character equals number of zeroes.
wwlly = date code, R = revision level
Do not route traces or vias underneath the inductor
Packaging information (mm)
Supplied in tape and reel packaging , 500 parts per 13” diameter reel
www.eaton.com/elx
3
Technical Data
4139
Effective April 2016
DR1050
Shielded power inductors
Temperature rise vs. total loss
160
140
Temperature Rise (°C)
120
100
80
60
40
20
0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Total Loss (W)
Core loss vs. Bp-p
10
1MHz
1
Core Loss (W)
500kHz
200kHz
100kHz
300kHz
0.1
0.01
0.001
1
10
Bp-p (mT)
100
1000
4
www.eaton.com/elx
DR1050
Shielded power inductors
Inductance characteristics
Technical Data
4139
Effective April 2016
120%
100%
80%
% of OCL vs. % of I
sat
% of OCL
60%
40%
20%
0%
-40 °C
+25 °C
+85 °C
0%
20%
40%
60%
80%
100%
120%
140%
% of I
sat
www.eaton.com/elx
5
京公网安备 11010802033920号
EEWORLD
