RoHS
SMTC2120
SMD HIGH CURRENT TOROID
mm
(Inches)
Dimensions:
Recommended Pad Layout
Features
• High Current Capacity
• SMD
• Low Magnetic Radiation
Allied
Part
Number
SMTC2120-1R0M-RC
SMTC2120-1R2M-RC
SMTC2120-1R5M-RC
SMTC2120-1R8M-RC
SMTC2120-2R2M-RC
SMTC2120-2R7M-RC
SMTC2120-3R3M-RC
SMTC2120-3R9M-RC
SMTC2120-4R7M-RC
SMTC2120-5R6M-RC
SMTC2120-6R8M-RC
SMTC2120-8R2M-RC
SMTC2120-100K-RC
SMTC2120-120K-RC
SMTC2120-150K-RC
SMTC2120-180K-RC
SMTC2120-220K-RC
SMTC2120-270K-RC
SMTC2120-330K-RC
SMTC2120-390K-RC
SMTC2120-470K-RC
SMTC2120-560K-RC
L(uH)
± 20%
@1ΚΗΖ
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%
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
DCR
m(Ω)
Max
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
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
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)
20.10/(0.87)
20.10/(0.87)
20.10/(0.87)
20.10/(0.87)
21.08/(0.83)
21.08/(0.83)
19.81/(0.78)
19.81/(0.78)
21.59/(0.85)
21.59/(0.85)
21.59/(0.85)
21.59/(0.85)
21.59/(0.85)
20.83/(0.82)
Electrical
Inductance range:
1.0uh to 1000uh
(addtional values available)
Tolerance:
1.0uh~8.2uh 20%
10uh~1000uh 10%
Test Frequency:
1KHz 0.1v
Operating Temp:
-55ºC ~ +105ºC
Storage Temp:
-55ºC ~ +105ºC
Temp Rise:
∆
T=30ºC Typical at rated IDC
Resistance to Solder Heat
Solder Temp:
260ºC 10 sec. max
Test Equipment
(L) & (DCR):
HP4263
SMTC2120-680K-RC
Current Source: Model 1320 & 11021 LCR
SMTC2120-820K-RC
Physical
Packaging:
40 Bags, 400 Carton
Marking:
EIA Inductance Code
SMTC2120-101K-RC
SMTC2120-121K-RC
SMTC2120-151K-RC
SMTC2120-181K-RC
SMTC2120-221K-RC
SMTC2120-271K-RC
SMTC2120-331K-RC
SMTC2120-391K-RC
SMTC2120-471K-RC
SMTC2120-561K-RC
SMTC2120-681K-RC
SMTC2120-821K-RC
SMTC2120-102K-RC
All specifications subject to change without notice.
714-665-1140
ALLIED COMPONENTS INTERNATIONAL
REVISED 06/09/11
Pg. 1 of 2
www.alliedcomponents.com
RoHS
SMTC2120
SMD HIGH CURRENT TOROID
Inductance vs. Current
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
L(uH)
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
All specifications subject to change without notice.
714-665-1140
ALLIED COMPONENTS INTERNATIONAL
REVISED 06/09/11
Pg. 2 of 2
www.alliedcomponents.com
