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© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard

E5002_ESD-R-B • 9/14/2018

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

EMI Core – ESD-R-B Toroidal Cores for Round Cables for Low & High Frequency (with snail-shaped case)

Performance Characteristics

Item

Performance Characteristics

Operatingtemperature

−25°Cto+60°C

Frequencyrange

Lowfrequencyandhighfrequency

Outer diameter

21.5 – 51.5 mm

Inner diameter

8.8 – 21.5 mm

Thickness

13.0 – 17.5 mm

Type

Snail-shaped case

Caseflameresistantrating

UL94 V–2

Material

MnZn5HandNiZn700L

Table 1 – Ratings & Part Number Reference

Part

Number

Dimensions (mm)

Weight

Case

Color

Compatible

Toroid Core

(Bare Type)

Material

A

B

C

Maximum

D

(g)

≤ 10 MHz

(AM band range)

≤ 300 MHz

(FM band range) MnZN NiZn

ESD-R-19B

21.5 ±1.0

8.8 ±1.0

13.0

18.5 ±1.0

12.1

White

ESD-R-19S

X

5H

—

ESD-R-19D-B

21.5 ±1.0

8.8 ±1.0

13.0

18.5 ±1.0

11.7

Black

ESD-R-19SD

X

—

700L

ESD-R-25B

29.3 ±1.0

13.9 ±1.0

15.0

23.0 ±1.0

21.8

White

ESD-R-25S

X

5H

—

ESD-R-25D-B

29.3 ±1.0

13.9 ±1.0

15.0

23.0 ±1.0

12.9

Black

ESD-R-25SD

X

—

700L

ESD-R-38B

42.4 ±0.8

17.9 ±0.8

16.0

28.0 ±0.8

58.6

White

ESD-R-38D

X

5H

—

ESD-R-38D-B

42.4 ±0.8

17.9 ±0.8

16.0

28.0 ±0.8

58.6

Black

—

X

—

700L

ESD-R-47B

51.5 ±0.7

25.5 ±0.7

17.5

34.0 ±0.7

89.0

White

—

X

5H

—

ESD-R-47D-B

51.5 ±0.7

25.5 ±0.7

17.5

34.0 ±0.7

89.0

Black

—

X

—

700L

Part

Number

A

B

C

Maximum

D

(g)

Color

Compatible

Toroid Core

(Bare Type)

≤ 10 MHz

(AM band range)

≤ 300 MHz

(FM band range)

MnZn

NiZn

Dimensions

Weight

Material

1

Frequency range is for reference only. Please test with actual device before use.