
PM-59
SHIELDED DRUM (DR1040)
Description
• 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
Packaging
• Supplied in tape and reel packaging, 850 per reel
DR1040 Series
Low Profile Power Inductors
Part Number Rated OCL (1) Irms(2) Isat (3) DCR (Ω) DCR (Ω) K-factor
Inductance μH±30% Amperes Amperes mΩ@20°C mΩ@20°C (4)
(μH) (Typical) (Maximum)
DR1040-1R5-R 1.5 1.4 6.50 10.00 6.0 8.1 15.48
DR1040-2R5-R 2.5 2.4 6.10 7.80 7.0 9.0 12.04
DR1040-3R8-R 3.8 3.6 5.50 6.40 9.6 13.0 9.85
DR1040-5R2-R 5.2 5.2 5.40 5.50 14.0 17.0 8.33
DR1040-7R0-R 7.0 6.8 4.50 4.80 17.0 20.0 7.22
DR1040-8R2-R 8.2 8.1 3.98 4.60 24.0 29.0 6.37
DR1040-100-R 10 9.6 3.80 4.40 26.0 35.0 5.70
DR1040-150-R 15 14.9 3.10 3.60 37.0 50.0 4.71
DR1040-220-R 22 21.1 2.50 2.90 54.0 73.0 4.01
DR1040-330-R 33 32.6 2.20 2.45 69.0 93.0 3.28
DR1040-470-R 47 45.8 1.90 2.10 95.0 128 2.78
DR1040-680-R 68 65.3 1.42 1.65 152 183 2.30
DR1040-820-R 82 86.8 1.29 1.47 214 260 2.04
DR1040-101-R 100 101.4 1.25 1.35 225 304 1.90
DR1040-151-R 150 148.3 0.85 1.15 356 430 1.57
DR1040-221-R 220 216.2 0.70 0.92 530 640 1.27
DR1040-331-R 330 323.4 0.52 0.70 810 1090 1.03
(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(P
eak 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
RoHS
2002/95/EC