EMI271T-RC datasheet(1/1 Pages) BOURNS

Part #	EMI271T-RC

Description	EMI T Network Filters Taped packaged for automated insertion Rated current: 5 A

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Manufacturer	BOURNS [Bourns Electronic Solutions]

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28.1

EMI T Network Filters

Special Features

• Ferrite beads and chip capacitor T

network EMI ﬁlters

• Excellent noise ﬁltering capability at

high frequency

• Taped packaged for automated insertion

• Rated current: 5 A

• Rated voltage: 50 VDC

• DC resistance: 0.05 Ohms max.

• Insulation resistance: 10 G Ohms @ 50 VDC

• Dielectric withstanding voltage: 125 VDC

• Operating temperature: -25 to +85 °C

• Ammo pack 2000 / Box

Typical Applications

• Personal computers, printers, hard drives

and telecommunication equipment

• Digital audio and video equipment

• Switch power supplies and AC adapters

• Automotive electronics

• Industrial electronic devices

EMI T Series

Part

Number

Cp (pF)

@ 1 KHz

25 dB Attenuation

Frequency (MHz)

15 dB Attenuation

Frequency (MHz)

EMI220T-RC

22 ±20 %

800 – 1000

200 – 800

EMI470T-RC

47 ±20 %

550 – 700

350 – 800

EMI101T-RC

100 ±20 %

350 – 500

200 – 800

EMI221T-RC

220 ±20 %

200 – 350

100 – 800

EMI271T-RC

270 ±20 %

200 – 300

80 – 800

EMI471T-RC

470 ±20 %

120 – 300

50 – 800

EMI102T-RC

1000 ±20 %

70 – 200

30 – 800

EMI222T-RC

2200 ±20 %

45 – 200

20 – 800

EMI332T-RC

3300 ±20 %

35 – 200

15 – 800

EMI103T-RC

10,000 -20 %, +80 %

15 - 200

6 - 800

3.2 Max.

9.0

Max.

8.0 Max.

2.5

Marking

0.5 Dia.

Dimensions: mm

Ferrite Bead

Cp

Ferrite Bead

<1>

<1> Beads exposure <1 mm (0.039 ”)

Typical Attenuation Characteristics

0

10

20

30

40

50

60

70

15

10

0.5

50

100

500 1000

Frequency (MHz)

1

10

2

3

4

5

6

7

8

9

1 - EMI220T-RC

2 - EMI470T-RC

3 - EMI101T-RC

4 - EMI221T-RC

5 - EMI271T-RC

6 - EMI471T-RC

7 - EMI102T-RC

8 - EMI222T-RC

9 - EMI332T-RC

10 - EMI103T-RC

† RoHS Directive 2002/95/EC Jan 27 2003

including Annex.

“-RC” suﬃx indicates RoHS compliance.

REV. 11/09

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