SMT Data Line EMI Filters – TTDLF

Document 123-1

Coilcraft surface mount filters are designed to virtually

eliminate the problem of conducted EMI in data line ap-

plications.They provide exceptional common mode noise

attenuation from 15 MHz to 300 MHz while passing signal

line data below 300 MHz with minimal attenuation.

These low resistance filters have been designed for excel-

lent electrical isolation (300 Vrms), environmental stability

and low cost.

Current

Inductance

DCR max

Weight

Color

Lines

(mOhms)

(mg)

Dot

TTDLF 2000L_

2

100

5

250

258

Red

TTDLF 2500L_

2

500

5

200

265

Green

TTDLF 3000L_

3

100

5

250

263

Orange

TTDLF 3500L_

3

500

5

200

270

Violet

TTDLF 4000L_

4

100

5

250

268

Yellow

TTDLF 4500L_

4

500

5

200

270

Blue

1. When ordering, please specify

termination and packaging codes:

TTDLF 2500LD

Termination: L = RoHS compliant tin-silver-copper over silver-

platinum-glass frit.

Special order:

S = non-RoHS tinlead (63/37).

Packaging: C = 7

″ machine ready reel. EIA-481 embossed plastic

tape (500 parts per full reel).

B = Less than full reel. In tape, but not machine ready.

To have a leader and trailer added ($25 charge),

use code letter D instead.

D = 13

″ machine ready reel. EIA-481 embossed plastic

tape (2200 parts per full reel).

2. Current rating is for each line.

3. Inductance is per winding, tested at 1 MHz.

4. Operating temperature range -40°C to +85°C.

5. Electrical specifications at 25°C.

30

20

10

0

-10

0.1

110

100

1000

Frequency (MHz)

Common Mode

Differential Mode

*Measured on HP 8753D network analyzer.

Document 123-1 Revised 08/20/15

As of August 2015, the TTDLF 10000 is no longer

available; please consider our CCDLF 10000.

For the TTDLF 2x000, TTDLF 3x000 and

TTDLF 4x000, we now offer an even more economi-

cal version of this series: PDLF. The PDLF series is

electrically identical and fits the same land pattern.