EMI Core – ESD-R Series Toroidal Cores
Table 1 – Ratings & Part Number Reference
Dimensions (mm)
Part Number
Frequency Range1
Compatible
Toroidal Core
(Bare Type)
Type
Color
≤ 100 MHz
≤ 300 MHz
OD
ID
T
(AM band range) (FM band range)
ESD-R-10D
ESD-R-10E
ESD-R-10S
ESD-R-12C
ESD-R-12E
ESD-R-12F
ESD-R-12S
ESD-R-14C
ESD-R-14E
ESD-R-14S
ESD-R-15C-1
ESD-R-16
ESD-R-16C
ESD-R-17S
ESD-R-18SD
ESD-R-19S
ESD-R-19SD
ESD-R-22SD
ESD-R-25SD
ESD-R-25S
ESD-R-26S
ESD-R-28C
ESD-R-31C
ESD-R-38D
9.5
5.0
5.0
5.5
7.3
7.3
8.5
7.0
7.0
10.0
6.3
10.0
5.0
20.0
15.0
8.0
15.0
5.5
3.0
X
X
X
X
X
X
X
X
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
Bare
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
10.0
10.5
11.8
11.8
12.0
12.0
14.0
14.0
14.3
15.0
15.8
16.0
17.5
18.0
18.5
18.5
22.5
25.0
25.0
26.0
28.0
31.0
38.1
8.0
X
X
X
28.5
12.0
8.4
17.0
28.5
6.0
10.0
10.0
6.4
12.0
12.0
28.5
13.0
8.0
10.5
11.6
9.0
X
X
X
X
X
X
X
X
X
X
X
X
X
9.5
10.0
10.0
10.0
13.8
15.0
15.0
13.0
16.0
19.0
19.0
12.7
ESD-R-12C-2
ESD-R-14A
ESD-R-14C-2
ESD-R-15C
ESD-R-17S-1
ESD-R-19E-1
ESD-R-25D-8
ESD-R-25L-A
ESD-R-28C-1
ESD-R-31C-1
ESD-R-31-P
12.0
15.0
14.0
15.2
17.7
19.0
25.0
25.3
28.2
32.0
32.0
7.3
6.2
7.0
10.5
9.4
10.7
15.0
15.1
15.8
18.5
19.0
15.3
3.5
3.0
12.5
28.8
5.3
X
Coated
Coated
Coated
Coated
Coated
Coated
Coated
Coated
Coated
Coated
Coated
Blue
Green
Blue
Blue
Blue
Blue
Blue
Blue
Blue
—
—
X
X
X
X
X
X
X
X
X
X
ESD-R-14C
ESD-R-15C-1
ESD-R-17S
—
—
8.0
12.1
13.2
9.0
ESD-R-25SD
—
ESD-R-31C
—
Green
Green
15.8
ESD-R-12D
ESD-R-19
ESD-R-19D
ESD-R-25
ESD-R-25D
ESD-R-38
ESD-R-38C-1
ESD-R-47
12.9
19.0
19.0
26.0
26.0
39.0
39.0
48.0
48.0
61.0
61.0
6.0
9.0
9.0
6.4
X
Case2
Case2
Case2
Case2
Case2
Case2
Case2
Case2
Case2
Case2
Case2
Black
White
Black
White
Black
ESD-R-12S
ESD-R-19S
ESD-R-19SD
ESD-R-25S
ESD-R-25SD
ESD-R-38D
11.0
11.0
15.0
15.0
14.0
14.0
16.0
16.0
24.0
24.0
X
X
X
X
X
X
X
X
X
X
14.0
14.0
17.5
17.5
25.5
25.5
32.4
32.4
White
White w/ tape (black)
White
White w/ tape (black)
White
—
—
—
—
—
ESD-R-47D-1
ESD-R-57
ESD-R-57D-1
White w/ tape (black)
1 Frequency range is for reference only. Please test with actual device before use.
2 Case flame resistant rating: UL94V-2
*Other sizes available. Please contact KEMET.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
E5001_ESD-R • 3/28/2017
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