Red Lion FCOR User Manual
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Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODEL FCOR - FERRITE SUPPRESSION CORE
DESCRIPTION
This Ferrite suppression core is packaged in a nylon case ready to clamp on
a single cable or several cables connecting to electronic equipment. The
purpose of the core is to attenuate conducted Electro-Magnetic Interference
(EMI) in the 25 MHz to 200 MHz range. Increasing the number of cable turns
through the core increases the impedance of the core. A higher impedance
results in greater EMI attenuation.
Placing more than one core on a cable increases the impedance at a slower
rate than adding turns to one core. The impedance for multiple cores is equal to
the sum of each core’s impedance. For a given application, start with a single
core using 2 turns. Add additional turns or additional cores as necessary.
Note: Increasing the number of turns beyond two will tend to degrade
performance at higher frequencies (see Specifications).
Place the cores on the cables as close to the equipment as possible unless the
equipment is mounted in a shielded enclosure and the source of the EMI is from
outside the enclosure. In this case, place the cores on the cable just inside or
outside the entry point of the enclosure.
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Bulletin No. FCOR-A
Drawing No. LP0379
Released 12/12
Ferrite Core
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N
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N
Ferrite core used for suppressing common--mode noise.
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V
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= Common-mode Noise Current
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= Load Impedance
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= Signal Voltage
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= Common-mode Noise Voltage
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APPLICATION
SPECIFICATIONS
1. MAX. CABLE DIAMETER: 0.390" (9.9 mm)
2. IMPEDANCE (OHMS):
# OF TURNS 25 MHz MIN. 100 MHz ±20%
1 110 225
2 440 900
4 1760 1000
# OF TURNS = The number of times the cable passes through the core.
3. WEIGHT: 0.63 oz. (18 g)
DIMENSIONS In inches (mm)
0.354 (8.99)
1.272
(32.31)
0.402 (10.21)
0.461 (11.71)
ORDERING INFORMATION
Do not dispose of unit in trash - Recycle
0.87
PART NUMBERDESCRIPTIONMODEL NO.
FCOR0000Ferrite Suppression CoreFCOR
(22.10)
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