© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
SMT Data Line EMI Filters–TTDLF
Document 123-1
Document 123-1
Revised 10/15/09
Coilcraft surface mount filters are designed to virtually
eliminate the problem of conducted EMI in data line
applications. 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
excellent electrical isolation (300 Vrms), environmental
stability and low cost.
These data line EMI filters come in 10, 8, 4, 3 and 2-line
versions with DC current capacity of 500 or 100 mA.
Current
Inductance
DCR max
Weight
Color
Part number1
Lines
max (mA)2
min (µH)3
(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
TTDLF 10000L_
10
100
5
250
601
—
1. When ordering, please specify termination and packaging codes:
TTDLF 2500
LD
TTDLF (except TTDLF 10000)
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).
TTDLF 10000
Termination:
L = RoHS compliant tin-silver-copper over nickel over
moly-mag.
Special order: S = non-RoHS tinlead (63/37).
Packaging:
D =13
″ machine ready reel. EIA-481 embossed plastic
tape (1000 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.
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
1
10
100
1000
Frequency (MHz)
Common Mode
Differential Mode
*Measured on HP 8753D network analyzer.
Typical Response*
We now offer an even more economical
version of this series: PDLF.
The PDLF is electrically identical and fits the same
land pattern. For the TTDLF 10000, please consider
our CCDLF10000. We will, however, continue to
produce the TTDLF series indefinitely.
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