• 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
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
Part
Number
LD1-1R0-R
LD1-1R4-R
LD1-1R8-R
LD1-2R2-R
LD1-2R7-R
LD1-3R3-R
LD1-3R9-R
LD1-4R7-R
LD1-5R6-R
LD1-6R8-R
LD1-8R2-R
LD1-100-R
LD1-120-R
LD1-150-R
LD1-180-R
LD1-220-R
LD1-270-R
LD1-330-R
LD1-390-R
LD1-470-R
LD1-560-R
LD1-680-R
Rated
Inductance
(µH)
1.0
1.4
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
OCL
(1)
Nominal
1.00
1.40
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
Irms
(2)
Amps
2.66
2.47
2.35
2.22
2.11
2.00
1.75
1.57
1.51
1.41
1.32
1.13
1.05
0.99
0.83
0.78
0.67
0.66
0.63
0.52
0.50
0.46
Isat
(3)
Amps
4.46
3.41
3.05
2.76
2.52
2.32
2.14
2.00
1.75
1.56
1.41
1.28
1.18
1.05
0.98
0.89
0.87
0.75
0.68
0.61
0.57
0.52
DCR
(4)
(
Ω
)
(Max.)
0.0330
0.0380
0.0420
0.0470
0.0520
0.0580
0.0760
0.0940
0.1010
0.1170
0.1320
0.1820
0.2100
0.2350
0.3380
0.3780
0.5220
0.5400
0.5870
0.8440
0.9370
1.12
Notes:
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 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
1207
BU-SB07325
Page 1 of 3
Data Sheet 4310
Part
Number
LD1-820-R
LD1-101-R
LD1-151-R
LD1-221-R
LD1-331-R
LD2-100-R
LD2-120-R
LD2-150-R
LD2-180-R
LD2-220-R
LD2-270-R
LD2-330-R
LD2-390-R
LD2-470-R
LD2-560-R
LD2-680-R
LD2-820-R
LD2-101-R
LD2-121-R
LD2-151-R
LD2-181-R
LD2-221-R
LD2-271-R
LD2-331-R
LD2-391-R
LD2-471-R
Rated
Inductance
(µH)
82
100
150
220
330
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
OCL
(1)
Nominal
82
100
150
220
330
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82
100
120
150
180
220
270
330
390
470
Irms
(2)
Amps
0.43
0.36
0.29
0.26
0.22
3.83
3.57
3.38
3.19
3.13
2.81
2.70
2.42
2.25
1.96
1.88
1.63
1.53
1.43
1.23
1.15
1.00
0.94
0.83
0.78
0.74
Isat
(3)
Amps
0.50
0.45
0.40
0.33
0.30
3.45
3.20
2.85
2.60
2.45
2.10
2.01
1.85
1.64
1.50
1.35
1.28
1.15
1.09
0.95
0.87
0.79
0.73
0.64
0.58
0.55
DCR
(4)
(
Ω
)
(Max.)
1.28
1.72
2.68
3.42
4.70
0.0700
0.0800
0.0900
0.1000
0.1100
0.1200
0.1300
0.1600
0.1800
0.2400
0.2800
0.3700
0.4300
0.4700
0.6400
0.7100
0.9600
1.11
1.26
1.77
1.96
Notes:
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 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
Dimensions - mm
Top View
A
Recommended Pad Layout
Front View
B
Bottom View
H
Schematic
1
C
xxx
Marking
I
G
I
2
Component Side
Marking:
LD1: xxx=inductance value
per family chart
LD2: "C" logo
xxx=inductance value
Dimensions
LD1
LD2
A
+/-0.3
4.5
7.8
B
+/-0.3
4.0
7.0
C
+/-0.3
3.2
5.0
G
ref
1.5
2.0
H
ref
4.5
7.5
I
ref
1.75
3.0
1207
BU-SB07325
Page 2 of 3
Data Sheet 4310
Packaging Information
LD1 Series
Supplied in tape and reel packaging,
2000 parts per reel, 13" diameter reel.
8.0
12.0
ACTUAL SIZE
LD1
xxx
xxx
User Direction Feed
xxx
xxx
LD2 Series
Supplied in tape and reel packaging,
1000 parts per reel, 13" diameter reel.
12.0
16.0
ACTUAL SIZE
LD2
xxx
xxx
User Direction Feed
xxx
xxx
Inductance Characteristics
OCL vs Isat
LD1
100
90
80
70
100
90
80
70
OCL vs Isat
LD2
OCL (%)
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
OCL (%)
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
% of Isat
% of Isat
North America
Cooper Bussmann
1225 Broken Sound Parkway NW
Suite F
Boca Raton, FL 33487-3533
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645
Cooper Bussmann
P.O. Box 14460
St. Louis, MO 63178-4460
Tel: 1-636-394-2877
Fax: 1-636-527-1607
Europe
Cooper Bussmann
Cooper (UK) Limited
Burton-on-the-Wolds
Leicestershire • LE12 5TH UK
Tel: +44 (0) 1509 882 737
Fax: +44 (0) 1509 882 786
Cooper Bussmann
Avda. Santa Eulalia, 290
08223
Terrassa, (Barcelona), Spain
Tel: +34 937 362 812
+34 937 362 813
Fax: +34 937 362 719
Asia Pacific
Cooper Bussmann
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice,
to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any
technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the
Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling,
can be reasonably expected to result in significant injury to the user.
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