Cores for Low Frequency Noise: TRM Series

“Mn” ferrite cores, suitable solutions for conductive and radiation noise in low frequency range

  • High Impedance noise filter for low frequency (kHz to MHz) range
  • Turning the cable around the core increases effectiveness by a power of 2 (N²)
  • Epoxy coated ferrite core has rounded corners to reduce the load on cable
  • Operating temperature -40 ~ 85 °C
Cores for Low Frequency Noise: TRM Series
TRM Series - Dimension
Part No.ABC
TRM-16-8-16E-WE17.07.116.9
TRM-20-10-10E-WE21.09.110.9
TRM-25-15-12E-WE26.014.112.9
TRM-31-20-15E-WE32.119.015.9
TRM-38-19-13E-WE39.217.914.0
TRM-47-27-15E-WE48.525.716.3
Unit:mm
Part No.Impedance Ω/100MHz (1Turn)
TRM-16-8-16E-WE≥70
TRM-20-10-10E-WE≥35
TRM-25-15-12E-WE≥35
TRM-31-20-15E-WE≥30
TRM-38-19-13E-WE≥35
TRM-47-27-15E-WE≥25

Impedance vs Frequency Characteristics

Turn Colors
Impedance: TRM-16-8-16E-WE
Impedance: TRM-20-10-10E-WE
Impedance: TRM-25-15-12E-WE
Impedance: TRM-31-20-15E-WE
Impedance: TRM-38-19-13E-WE
Impedance: TRM-47-27-15E-WE

* Specifications and dimensions are subject to change without notice for product improvement.