PL
IA
NT
Features
n
Formerly model
n
Current rating up to 25.4 A
n
Toroidal core
n
RoHS compliant*
Applications
n
Input/output of DC/DC converters
n
Industrial electronics
n
Power supplies for:
*R
oH
S
C
OM
• Portable communications equipment
• Camcorders
• LCD TVs
LE
AD
F
RE
E
PM2120 Series - High Current SMD Power Inductors
General Specifications
Test Voltage .................................... 0.1 V
Operating Temperature
................................ -55 °C to +105 °C
(Temperature rise included)
Storage Temperature ...-55 °C to +105 °C
Moisture Sensitivity Level .......................1
ESD Classification (HBM) ...................N/A
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)
Electrical Specifications
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
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
(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)
25.4
(1.000)
MAX.
A
Recommended Pad Layout
22.9
(0.900)
Electrical Schematic
30.5 ± 0.5
(1.200 ± .0200)
Typical Part Marking
PM2120-xxxx-RC
5.1
(0.200)
17.8
(0.700)
25.4
(1.000)
MAX.
MM
DIMENSIONS:
(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.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
A
PM2120 Series - High Current SMD Power Inductors
Inductance vs. Current
L (μH)
1
Idc (A)
to decrease L
by 10 %
15.3
17.4
15.8
14.6
13.1
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
0.97
0.89
0.81
0.74
0.67
0.61
1.11
11.7
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
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
11.9
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
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
11.0
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
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
11.1
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
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
11.2
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
100
120
150
180
220
270
330
390
470
560
680
1000
820
82
REV. 03/18
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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