LD Series
Metalized Drum Core Power Inductor
1207 BU-SB07325 Page 1 of 3 Data Sheet 4310
Part Rated OCL
(1)
I
rms
(2)
I
sat
(3)
DCR
(4)
Number Inductance Nominal Amps Amps (Ω)
(µH) (Max.)
LD1-1R0-R 1.0 1.00 2.66 4.46 0.0330
LD1-1R4-R 1.4 1.40 2.47 3.41 0.0380
LD1-1R8-R 1.8 1.80 2.35 3.05 0.0420
LD1-2R2-R 2.2 2.20 2.22 2.76 0.0470
LD1-2R7-R 2.7 2.70 2.11 2.52 0.0520
LD1-3R3-R 3.3 3.30 2.00 2.32 0.0580
LD1-3R9-R 3.9 3.90 1.75 2.14 0.0760
LD1-4R7-R 4.7 4.70 1.57 2.00 0.0940
LD1-5R6-R 5.6
5.60
1.51
1.75 0.1010
LD1-6R8-R 6.8
6.80
1.41 1.56 0.1170
LD1-8R2-R 8.2
8.20
1.32
1.41
0.1320
LD1-100-R 10
10.0
1.13
1.28
0.1820
LD1-120-R 12
12.0
1.05
1.18
0.2100
LD1-150-R 15 15.0 0.99 1.05 0.2350
LD1-180-R 18 18.0 0.83 0.98 0.3380
LD1-220-R 22 22.0 0.78 0.89 0.3780
LD1-270-R 27 27.0 0.67 0.87 0.5220
LD1-330-R 33 33.0 0.66 0.75 0.5400
LD1-390-R 39 39.0 0.63 0.68 0.5870
LD1-470-R 47 47.0 0.52 0.61 0.8440
LD1-560-R 56 56.0 0.50 0.57 0.9370
LD1-680-R 68 68.0 0.46 0.52 1.12
Notes:
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V
r
ms
, 0.0Adc
+/-20% except for LD1-330-R to LD1-331-R and LD2-470-R to LD2-471-R which is +/-10%
2) RMS current for an approximate
∆T of 40°C. It is recommended that the temperature of the
part not exceed 125°C
3) Peak current for an approximate 10% rolloff at 20°C
4) DCR limits @ 20°C
5) Part number definition: LDx-yyy-R
LDx = product code and size, -yyy = inductance value in µH,
R = decimal point. If no R is present, third character = # of zeros
-R suffix = RoHS compliant
Description
• Metalized drum core design utilizes board space
• Current Range from 4.46 amps to 0.52 amps
• Inductance range from 1.0µH to 470µH
• Ferrite core material
Applications
• Buck or boost inductor
• Noise filtering and output filter chokes
• Computers
• Power supplies
• Test equipment instrumentation
Environmental Data
• Storage temperature: -40°C to +125°C
•
Operating temperature: -40°C to +125°C (range is application
specific). Temperature rise is approximately 40°C at rated rms
current.
•
Solder reflow temperature: 260°C max. for 10 seconds max.
Packaging
• Supplied in tape and reel packaging, LD1 (2,000),
LD2 (1,000) parts per reel