PM2120

PL
IA
NT
Features
Applications
■ Formerly
■ Input/output of DC/DC converters
*R
oH
S
CO
M
model
■ Current rating up to 25.4 A
■ Toroidal core
■ RoHS compliant*
■ Industrial electronics
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car radios
PM2120 Series - High Current SMD Power Inductors
Electrical Specifications
Inductance 1 kHz
Bourns Part No.
(μH)
Tol. (%)
DCR
Max.
(mΩ)
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
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
±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
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
Electrical Schematic
Idc
(A)
Dim. A
Max.
mm/(in.)
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
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)
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
Product Dimensions
30.5 ± 0.5
(1.200 ± .0200)
25.4
(1.000)
MAX.
A
Recommended Pad Layout
22.9
(0.900)
17.8
(0.700)
Typical Part Marking
PM2120-xxxx-RC
5.1
(0.200)
DIMENSIONS:
*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.
MM
(INCHES)
PM2120 Series - High Current SMD Power Inductors
Inductance vs. Current
L (μH)
Idc (A)
to decrease L
by 10 %
Idc (A)
to decrease L
by 20 %
Idc (A)
to decrease L
by 30 %
Idc (A)
to decrease L
by 40 %
Idc (A)
to decrease L
by 50 %
1
15.3
24.5
34.4
45.9
61.3
1.2
17.4
27.9
39.2
52.2
69.7
1.5
15.8
25.3
35.6
47.4
63.3
1.8
14.6
23.4
32.9
43.8
58.5
2.2
13.1
21.0
29.5
39.3
52.5
2.7
11.7
18.7
26.3
35.1
46.9
3.3
15.1
24.2
34.0
45.3
60.5
3.9
9.70
15.5
21.8
29.1
38.9
4.7
8.90
14.3
20.0
26.7
35.7
5.6
8.10
13.0
18.2
24.3
32.4
6.8
7.40
11.9
16.7
22.2
29.6
8.2
6.70
10.7
15.1
20.1
26.8
10
6.10
9.77
13.7
18.3
24.4
12
5.60
8.97
12.6
16.8
22.4
15
4.90
7.85
11.0
14.7
19.6
18
4.60
7.37
10.4
13.8
18.4
22
4.10
6.57
9.23
12.3
16.4
27
3.70
5.93
8.33
11.1
14.8
33
3.35
5.37
7.54
10.1
13.4
39
3.10
4.97
6.98
9.30
12.4
47
2.80
4.49
6.30
8.40
11.2
56
2.55
4.09
5.74
7.65
10.2
68
2.35
3.76
5.29
7.05
9.41
82
2.15
3.44
4.84
6.45
8.61
100
1.92
3.08
4.32
5.76
7.69
120
1.75
2.80
3.94
5.25
7.01
150
1.58
2.53
3.56
4.74
6.33
180
1.43
2.29
3.22
4.29
5.73
220
1.30
2.08
2.93
3.90
5.21
270
1.18
1.89
2.66
3.54
4.73
330
1.11
1.78
2.50
3.33
4.45
390
0.97
1.55
2.18
2.91
3.89
470
0.89
1.43
2.00
2.67
3.57
560
0.81
1.30
1.82
2.43
3.24
680
0.74
1.19
1.67
2.22
2.96
820
0.67
1.07
1.51
2.01
2.68
1000
0.61
0.98
1.37
1.83
2.44
REV. 07/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.