IA
NT
Features
■
Formerly
Applications
■
Input/output of DC/DC converters
■
Industrial electronics
■
Power supplies for:
model
■
Current rating up to 25.4 A
■
Toroidal core
■
RoHS compliant*
*R
oH
S
CO
M
PL
• Portable communications equipment
• Camcorders
• LCD TVs
• Car radios
PM2120 Series - High Current SMD Power Inductors
Electrical Specifications
General Specifications
Test Voltage .................................... 0.1 V
Reflow Soldering .......245 °C; 5 seconds
Operating Temperature
................................ -55 °C to +105 °C
(Temperature rise included)
Storage Temperature ...-55 °C to +105 °C
Resistance to Soldering Heat
...........................260 °C, 10 sec. max.
Materials
Core .................................................. Iron
Wire ............................ Enameled copper
Adhesive ...............................Epoxy resin
Terminal ................................... Sn/Ag/Cu
Rated Current
......See “Inductance vs. Current” table
Temperature Rise
.............................. 30 °C typical at Idc
Packaging .......................77 pcs. per box
Inductance 1 kHz
Bourns Part No.
PM2120-1R0M-RC
PM2120-1R2M-RC
PM2120-1R5M-RC
PM2120-1R8M-RC
PM2120-2R2M-RC
PM2120-2R7M-RC
PM2120-3R3M-RC
PM2120-3R9M-RC
PM2120-4R7M-RC
PM2120-5R6M-RC
PM2120-6R8M-RC
PM2120-8R2M-RC
PM2120-100K-RC
PM2120-120K-RC
PM2120-150K-RC
PM2120-180K-RC
PM2120-220K-RC
PM2120-270K-RC
PM2120-330K-RC
PM2120-390K-RC
PM2120-470K-RC
PM2120-560K-RC
PM2120-680K-RC
PM2120-820K-RC
PM2120-101K-RC
PM2120-121K-RC
PM2120-151K-RC
PM2120-181K-RC
PM2120-221K-RC
PM2120-271K-RC
PM2120-331K-RC
PM2120-391K-RC
PM2120-471K-RC
PM2120-561K-RC
PM2120-681K-RC
PM2120-821K-RC
PM2120-102K-RC
(μH)
1.0
1.2
1.5
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
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Tol. (%)
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
DCR
Max.
(mΩ)
2
2
3
3
3
3
4
4
5
5
6
6
7
8
9
9
11
12
13
14
19
21
29
32
35
39
43
47
52
72
100
108
119
130
142
157
215
Idc
(A)
25.4
25.4
22.0
22.0
19.7
19.7
18.0
18.0
16.6
15.6
14.7
14.7
13.9
12.7
12.2
11.8
11.0
10.4
10.1
9.6
8.2
7.9
6.7
6.4
6.1
5.8
5.5
5.3
5.0
4.2
3.6
3.5
3.3
3.2
3.0
2.9
2.5
Dim. A
Max.
mm/(in.)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.83 / (0.82)
20.07 / (0.79)
20.07 / (0.79)
19.56 / (0.77)
22.10 / (0.87)
22.10 / (0.87)
22.10 / (0.87)
22.10 / (0.87)
21.08 / (0.83)
21.08 / (0.83)
20.32 / (0.80)
19.81 / (0.78)
19.81 / (0.78)
21.59 / (0.85)
21.59 / (0.85)
21.59 / (0.85)
21.59 / (0.85)
20.83 / (0.82)
Product Dimensions
30.5 ± 0.5
(1.200 ± .0200)
25.4
(1.000)
MAX.
A
Recommended Pad Layout
22.9
(0.900)
Electrical Schematic
Typical Part Marking
PM2120-xxxx-RC
5.1
(0.200)
17.8
(0.700)
DIMENSIONS:
MM
(INCHES)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
PM2120 Series - High Current SMD Power Inductors
Inductance vs. Current
L (μH)
1
1.2
1.5
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
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Idc (A)
to decrease L
by 10 %
15.3
17.4
15.8
14.6
13.1
11.7
15.1
9.70
8.90
8.10
7.40
6.70
6.10
5.60
4.90
4.60
4.10
3.70
3.35
3.10
2.80
2.55
2.35
2.15
1.92
1.75
1.58
1.43
1.30
1.18
1.11
0.97
0.89
0.81
0.74
0.67
0.61
Idc (A)
to decrease L
by 20 %
24.5
27.9
25.3
23.4
21.0
18.7
24.2
15.5
14.3
13.0
11.9
10.7
9.77
8.97
7.85
7.37
6.57
5.93
5.37
4.97
4.49
4.09
3.76
3.44
3.08
2.80
2.53
2.29
2.08
1.89
1.78
1.55
1.43
1.30
1.19
1.07
0.98
Idc (A)
to decrease L
by 30 %
34.4
39.2
35.6
32.9
29.5
26.3
34.0
21.8
20.0
18.2
16.7
15.1
13.7
12.6
11.0
10.4
9.23
8.33
7.54
6.98
6.30
5.74
5.29
4.84
4.32
3.94
3.56
3.22
2.93
2.66
2.50
2.18
2.00
1.82
1.67
1.51
1.37
Idc (A)
to decrease L
by 40 %
45.9
52.2
47.4
43.8
39.3
35.1
45.3
29.1
26.7
24.3
22.2
20.1
18.3
16.8
14.7
13.8
12.3
11.1
10.1
9.30
8.40
7.65
7.05
6.45
5.76
5.25
4.74
4.29
3.90
3.54
3.33
2.91
2.67
2.43
2.22
2.01
1.83
Idc (A)
to decrease L
by 50 %
61.3
69.7
63.3
58.5
52.5
46.9
60.5
38.9
35.7
32.4
29.6
26.8
24.4
22.4
19.6
18.4
16.4
14.8
13.4
12.4
11.2
10.2
9.41
8.61
7.69
7.01
6.33
5.73
5.21
4.73
4.45
3.89
3.57
3.24
2.96
2.68
2.44
REV. 07/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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