Corporate Office
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: BelFuse@belfuse.com
Internet: http://www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366
defining a degree of excellence
COMMON MODE FILTER CHOKES
FOR TELECOM APPLICATIONS
PART NUMBER
bel
1
bel
PART NUMBER
YYWW
YYWW
.004
.720(18.28)
MAX
.030(0.76)
TYP
.100(2.54)
TYP
.530(13.46)
MAX
.390(8.64)
MAX
.550(13.97)
MAX
.600(15.24)
.045/.055
(1.01/1.27)
.010/.020
(.25/0.51)
.300(7.6)
MAX
.480(12.2)
MAX
.595(15.1)
MAX
.300(7.6)
TYP
.100(2.54)
TYP
.130(3.3)
4
1
2
10
9
7
6
4
5
5
8
Pin 1
Indicator
Pin 1
Indicator
Date code
Year,
week
Designed for 4-wire links, such as ISDN-S/T
and T1/E1/CEPT.
High frequency chokes for EMI reduction.
Bel introduces a new Common Mode Filter
Choke for Telecom Applications in surface
mount or through hole packages
Dimensions are in inches(mm).
Dimension tolerance is +/-0.01(0.25)
unless otherwise specified.
1 2 4 5
10 9 7 6
1 : 1 : 1 : 1
8 7 6 5
1 : 1 : 1 : 1
1 2 3 4
Part Number
Cw/w
(pf max)
OCL 25
O
C
(uH min)
24.0
8.0
22.5
0555-6400-01
0555-6400-02
S555-6400-07
15
10
17
DCR
(ohms max)
L
L
(uH max)
Isolation
(Vrms min)
500
500
500
0.20
0.20
0.23
Through Hole
Through Hole
Surface Mount
High
High
High
Frequency
(3MHz-200MHz)
0.30
0.25
0.30
ELECTRICAL SPECIFICATIONS
@ 25
O
C
TM0038
Package
T307
PDF 
ZIP