SPLIT TOROIDAL
CORES WITH PLASTIC HOUSING (PATENTED)
( GRFC Series )
Employ high-performance ferrites (Nickel-Zinc)
effective against high frequency
noise.
Ferrite assembly in fully enclosed Nylon 6/6
case, can be installed as a single add-on component
by snapping.
Design to help provide cost and time-to-market
saving.
Can be installed in its intended location before
or after product assembly by snapping.
Superior suppression of radiation emissions for full compliance
with FCC, VDE and VCCI on Interface/data
line round cables of computers, peripheral/terminal equipment.
Unit:
mm (inch)
Impedance(Ω)
1 turn
Applicable
cable Diameter
Part
No.
A
B
C
D
100MHz
GRFC-3
13.7
13.5
N/A
18
35
3.0 ~ 4.0 mm
GRFC-4
13.7
13.5
N/A
27.5
75
3.5 ~ 4.5 mm
GRFC-5
18.1
18.4
31.5
35.5
135
4.5 ~ 5.5 mm
GRFC-6
18.1
18.4
31.5
35.5
135
5.5 ~ 6.5 mm
GRFC-7
14.25
15.8
20
24
45
6.0 ~ 7.0 mm
GRFC-8
20.1
20.4
31.5
35.5
105
7.5 ~ 8.5 mm
GRFC-9
22.6
N/A
34.0
35.5
120
8.5 ~ 9.5 mm
GRFC-10
26.3
26.4
32.4
37.2
145
9.5 ~ 10.5
GRFC-13
29.1
29.4
31.5
36.3
130
12.5 ~ 13.5 mm
RFC-H13
31.7
N/A
41
N/A
170
12.5 ~ 13.5 mm
RFC-20
40
N/A
47
N/A
180
20 mm max
RFCK2-20 (RFC-20 with mount tab)
40
N/A
47
N/A
180
20 mm max
Note:
RFCK2-20 (RFC-20 with Mounting
Tab) available.
All of our products are RoHS Compliant
INTERMARK (U.S.A.), INC. A Kitagawa Company
1310 TULLY ROAD
STE. 117
SAN JOSE, CA. 95122
U.S.A.
Phone: (408) 971-2055
Fax: (408) 971-6033
E-Mail:
sales@intermark-usa.com
quote@intermark-usa.com
order@intermark-usa.com
Ferrite Products 
All of our products are RoHS Compliant
