ESD-R-57D PDF数据手册_ESD-R-57D 特性/功能/参数/引脚图_KEMET(基美) 电线与电缆 -Datasheet-电子工程世界

ESD-R-57D文档预览

EMI Cores

ESD-R Toroidal Cores for Round Cables for

Low & High Frequency (Bare, coated & with case)

Overview

The KEMET ESD-R series solid toroidal cores are designed

to use on round cables. The wide range of Manganese Zinc

(MnZn) and Nickel Zinc (NiZn) options are available in bare,

coated, and case types and allows for targeting of specific

frequency ranges.

EMI cores are part of a family of passive components,

which address the issues of noise or electromagnetic

interference (EMI) in circuits or systems.

Applications

• Consumer electronics

• Air conditioners

• Power conditioners

• Refrigerators

• Washing machines

• Industrial equipment

• Medical equipment

• Adapters

• Computers

• Telecommunications

Benefits

• MnZn ≤ 10 MHz (AM band range) and NiZn ≤ 300 MHz

(FM band range) options available

• Solid construction

• Bare, coated, and case types available

• Wide range of products available

Bare Type

Coated Type

Case Type

Built Into Tomorrow

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

E5001_ESD-R • 9/16/2020

EMI Core – ESD-R Toroidal Cores for Round Cables for Low & High Frequency (Bare, coated & with case)

Part Number System

ESD-

Series

ESD-

R-

Shape Type

Ring

Core Size

Outer Dimension Code (mm)

See Table 1

Internal Management Code

Turns and Impedance Characteristics

When the desired performance of an EMI core cannot be

obtained with a single pass through the core, the impedance

characteristics can be changed with multiple turns.

A turn is counted by the number of lead-wire windings which pass

through the inner hole of the core. Windings on the outside of the

core do not count.

See Figure 1 for examples of one, two, and three turns.

Adding turns will result in higher impedance while also lowering

the effective frequency range.

See Figure 2 for an example.

Figure 1 – How to count turns

Figure 2 – Relationship between impedance and turn count.

(Representative example: ESD-R-16C)

10,000

Resonance point changes to lower band

Impedance (Ω)

Impedance Increase

1,000

100

Core Material and Effective Frequency Range

There are two ferrite material options for KEMET

EMI Cores: Nickel Zinc (Ni-Zn) and Manganese

Zinc (Mn-Zn). Each core material has a different

resistance and effective frequency range. The

MnZn core material has a lower resistance

compared to the Ni-Zn; therefore, adequate

insulation is required before use.

The Ni-Zn core material is typically effective

for frequencies in the MHz band range such as

the FM-band, while the Mn-Zn core material is

typically effective for the kHz band range such as

the AM-band. See Figure 3.

It is recommended to measure the actual

frequency range effectiveness in the target

application.

Impedance (Ω)

100

1,000

Frequency (MHz)

Figure 3 – Effective band range of Mn-Zn and Ni-Zn ferrite core material.

(Representative example, measured with same-dimension ring core)

1,000

AM band range

100

FM band range

Ni-Zn series core

Mn-Zn series core

0.01

0.1

100

1,000

Frequency (MHz)

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

E5001_ESD-R • 9/16/2020

EMI Core – ESD-R Toroidal Cores for Round Cables for Low & High Frequency (Bare, coated & with case)

Magnetic Permeability of Ferrite Material

In order to achieve most efficient noise reduction, it is important to select the material according to the target frequency

band. Depending on its magnetic permeability, a particular ferrite material will be effective in a certain frequency band.

A schematic representation of the relationship between the magnetic permeability of each material and the corresponding

effective band range is shown in Figure 1. Materials with higher magnetic permeability are effective in the lower frequency

range, while those with lower magnetic permeability are effective in the higher frequency range. Thus, Mn-Zn products are

mainly used for reducing conduction noise, while Ni-Zn products are commonly used for radiation noise countermeasures.

The effective frequency range varies depending on core shape, size and number of windings. This frequency dependence

of the magnetic permeability as shown in the figure serves for reference purposes only and it should be tested on the actual

device to determine its effectiveness.

S18H, S15H, 10H, 7H, 5H, 1400L and 700L are KEMET’s proprietary ferrite material names.

Other materials can also be available on request.

Figure 4 - Relationship between the magnetic permeability of each material and its effective frequency range

20,000

Higher magnetic permeability:

Higher noise suppression effect

in the lower frequency range

Mn-Zn Series

S18H

Magnetic Permeability

S15H

10,000

10H

Lower magnetic permeability:

Higher noise suppression effect

in the higher frequency range

Ni-Zn Series

1400L

700L

100 kHz

1 MHz

10 MHz

100 MHz

1 GHz

10 kHz

Effective Frequency Range

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

E5001_ESD-R • 9/16/2020

EMI Core – ESD-R Toroidal Cores for Round Cables for Low & High Frequency (Bare, coated & with case)

Environmental Compliance

All KEMET EMI cores are RoHS compliant.

Dimensions – Millimeters

Bare and Coated Types

Case Type

See Table 1 for dimensions

Installation Example

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

E5001_ESD-R • 9/16/2020

EMI Core – ESD-R Toroidal Cores for Round Cables for Low & High Frequency (Bare, coated & with case)

Performance Characteristics

Item

Operating temperature

Frequency range

Outer diameter

Inner diameter

Thickness

Type

Case flame resistant rating

Material

Performance Characteristics

Bare and coated: −25°C to +85°C

Case : −25°C to +60°C

Low frequency and high frequency

9.5 – 61.0 mm

5.0 – 36.0 mm

3.0 – 28.8 mm

Bare, coated, and case

UL94 V–2

MnZn 5H and NiZn 700L

Table 1 – Ratings & Part Number Reference

Part

Number

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-27S

ESD-R-28C

ESD-R-31C

ESD-R-38D

ESD-R-47S

ESD-R-57D

ESD-R-57S

Dimensions (mm)

9.5 ±0.5

10.0 ±0.5

10.5 ±0.8

11.8 ±0.7

12.0 ±0.5

14.0 ±0.7

14.0 ±0.6

14.3 ±0.5

15.0 ±0.5

15.8 ±0.6

16.0 ±0.7

17.5 ±0.5

18.0 ±0.5

18.5 ±1.0

22.5 ±0.7

25.0 ±0.5

25.0 ±0.8

26.0 ±0.5

27.0 ±0.8

28.0 ±0.8

31.0 ±0.8

38.1 ±1.0

47.0 ±1.0

57.0 ±1.5

Weight

(g)

2.5

1.5

6.3

5.0

2.7

4.1

2.1

1.7

3.1

17.1

5.3

3.6

11.2

24.4

5.1

10.4

10.0

7.8

18.5

53.3

21.3

27.3

18.1

53.0

83.7

139.1

5.0 ±0.5

5.0 ±0.4

5.5 ±0.8

7.3 ±0.8

7.3 ±0.7

8.5 ±0.5

7.0 ±0.4

7.0 ±0.7

10.0 ±0.6

6.3 ±0.5

10.5 ±0.5

11.6 ±0.6

9.0 ±0.7

9.5 ±0.3

10.0 ±0.5

10.0 ±1.0

13.8 ±0.5

15.0 ±0.5

15.0 ±0.8

13.0 ±0.3

19.0 ±0.8

16.0 ±0.5

19.0 ±0.5

19.0 ±0.7

27.0 ±0.8

36.0 ±1.5

36.0 ±1.0

Type

Bare

Color

—

Compatible

Toroid Core

(Bare Type)

—

Frequency Range

Material

NiZn

700L

—

700L

—

700L

—

700L

—

700L

—

700L

—

≤ 10 MHz

≤ 300 MHz

MnZN

(AM band range) (FM band range)

—

10H

—

10.0 ±0.5

5.0 ±0.4

20.0 ±0.8

15.0 ±0.7

8.0 ±0.7

15.0 ±0.5

5.5 ±0.4

3.0 ±0.7

8.0 ±0.5

28.5 ±0.8

12.0 ±0.5

8.4 ±0.6

17.0 ±0.7

28.5 ±0.5

6.0 ±0.5

10.0 ±1.0

6.4 ±0.5

12.0 ±0.3

12.0 ±0.8

28.5 ±0.5

15.0 ±0.5

13.0 ±0.6

8.0 ±0.5

12.7 ±0.7

15.0 ±0.5

20.0 ±0.7

20.0 ±0.5

Part

Number

Dimensions

(g)

Weight

Type

Color

Compatible

Toroid Core

(Bare Type)

≤ 10 MHz

(AM band range)

≤ 300 MHz

(FM band range)

MnZn

NiZn

Frequency Range

Material

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

* Other sizes available on request. Please contact KEMET.

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

E5001_ESD-R • 9/16/2020