DR1040 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 4.0mm shielded drum core
• Ferrite core material
• Inductance range from 1.5μH to 330μH
• Current range from 10.0 Amps to 0.52 Amps
• Frequency range up to 1MHz
Applications
• Notebook power, Portable devices
• Wireless modems, ADSL line cards
• Point of load power supplies
• Battery chargers, Video Cards
• MP3 player, PDA’s, DVD players
• LED driver for notebook computer
• Navigation system, LCD backlighting
• Buck, Boost, or Forward inductor
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
Rated
Inductance
(μH)
1.5
2.5
3.8
5.2
7.0
8.2
10
15
22
33
47
68
82
100
150
220
330
OCL (1)
μH±30%
1.4
2.4
3.6
5.2
6.8
8.1
9.6
14.9
21.1
32.6
45.8
65.3
86.8
101.4
148.3
216.2
323.4
Irms(2)
Amperes
6.50
6.10
5.50
5.40
4.50
3.98
3.80
3.10
2.50
2.20
1.90
1.42
1.29
1.25
0.85
0.70
0.52
Packaging
• Supplied in tape and reel packaging, 850 per reel
Isat (3)
Amperes
10.00
7.80
6.40
5.50
4.80
4.60
4.40
3.60
2.90
2.45
2.10
1.65
1.47
1.35
1.15
0.92
0.70
DR1040-1R5-R
DR1040-2R5-R
DR1040-3R8-R
DR1040-5R2-R
DR1040-7R0-R
DR1040-8R2-R
DR1040-100-R
DR1040-150-R
DR1040-220-R
DR1040-330-R
DR1040-470-R
DR1040-680-R
DR1040-820-R
DR1040-101-R
DR1040-151-R
DR1040-221-R
DR1040-331-R
DCR (Ω)
mΩ @20°C
(Typical)
6.0
7.0
9.6
14.0
17.0
24.0
26.0
37.0
54.0
69.0
95.0
152
214
225
356
530
810
DCR (Ω)
mΩ @20°C
(Maximum)
8.1
9.0
13.0
17.0
20.0
29.0
35.0
50.0
73.0
93.0
128
183
260
304
430
640
1090
K-factor
(4)
15.48
12.04
9.85
8.33
7.22
6.37
5.70
4.71
4.01
3.28
2.78
2.30
2.04
1.90
1.57
1.27
1.03
SHIELDED DRUM (DR1040)
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate
ΔT
of 30°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*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI
(Peak to peak ripple current in Amps).
(5) Part Number Definition: DR1040-xxx-R
DR1040 = 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
PM-59
RF/Wirelessly
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