Coilcraft TTTRF Surface Mount Tip and Ring Filters
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Surface Mount
Tip and Ring Filters

NOTE: We now offer an even more economical version of this series: PTRF. It is electrically identical and fits the same land pattern. Existing customers will continue to be supported.

  • Effective noise reduction throughout an extended frequency range
  • >15 dB attenuation over the 30 to 300 MHz range
  • Help meet FCC and CCITT requirements
  • Flat top ceramic case for reliable pick and place operations
  • RoHS-compliant. 260°C compatible. Tin-silver-copper over silver-platinum-glass frit terminations.


Part number1 Lines Inductance
per winding2
min (µH)
DCR per
winding max3
min (Vrms)
TTTRF2000L_ 1 35 500 0.075 1500 (1-8)
TTTRF4000L_ 2 35 500 0.135 1500 (1,2-7,8)
1 When ordering, please specify packaging code: e.g. TTTRF4000LC
  Termination: L = RoHS compliant tin-silver-copper over silver-platinum-glass frit.
Special order, added cost: S = non-RoHS tin-lead (63/37).
  Packaging: C = 7" machine-ready reel
EIA RS-481 clear plastic tape (500 parts per full reel).
B = Less than full reel
In tape, not machine ready.  To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" reel, machine-ready 
EIA RS-481 clear plastic tape. Factory order only, not stocked (2200 parts per full reel).
2 Inductance tested at 130 kHz.
3 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Ambient temperature range −40°C to +85°C
5 Electrical specifications at 25ºC

Your comments and suggestions are welcome. Contact [email protected]
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Updated: April 16, 2018