MODEL FCOR - FERRITE SUPPRESSION CORE DESCRIPTION

MODEL FCOR - FERRITE SUPPRESSION CORE DESCRIPTION
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.
APPLICATION
Ferrite core used for suppressing common--mode noise.
IN = Common-mode Noise Current
ZL = Load Impedance
VS = Signal Voltage
VN = Common-mode Noise Voltage
SPECIFICATIONS
1. MAX. CABLE DIAMETER: 0.390" (9.9 mm)
2. IMPEDANCE (OHMS):
# OF TURNS
25 MHz MIN.
100 MHz ±20%
1
2
4
110
440
1760
225
900
1000
K
# OF TURNS = The number of times the cable passes through the core.
3. WEIGHT: 0.63 oz. (18 g)
DIMENSIONS “In inches (mm)”
ORDERING INFORMATION
MODEL NO.
DESCRIPTION
PART NUMBER
FCOR
Ferrite Suppression Core
FCOR0000
1-717-767-6511
965
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
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