FT400-3I, ID=3", RFI Range 1-300 MHz
Product Details
MPN: F400-31
RFI Range (MHz): 1-300 MHz
ID-B (in/mm): 3/76.2
OD-A (in/mm): 4/101.6
Height-C (in/mm): 1/25.4
Weight (oz/gm): 420 grams
Initial permeability: 1500
Case/Box lot size: 25
Frequency (MHz)/Single turn impedance (ohms): 1MHZ:14 ohms, 5 MHz: 31 ohms, 10 MHz: 45 ohms, 25 MHz: 76 ohms
(4″ OD, 3″ ID hole), available in mix 31 only
Excellent for large cables or multiple cables – use multiple cores for higher choking. Also useful when you need high turns count for high choking with large cable - works on AC or DC power lines and also coax cable lines.
Typical user comment:
The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill