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
.400
(10.2)
MAX
.600
(15.3)
MAX
.340(8.64)
MAX
.675(17.2)
MAX
YYWW
1
12 11 10 9 8 7
1 2 3 4 5 6
12 11 10 9 8 7
12 10 9 8 7
1 2 3 4 5 6
12 10 9 8 7
1 2 3 4 6
1 2 3 4 5 6
1 3 4 6
12 11 10 9 7
1
2
6
5
4
.004
12
7
.100(2.54)
TYP
.030(0.76)
TYP
.085(2.16)
6
.475
(12.1)
MAX
PART NUMBER
bel
.040/.050
(1.01/1.27)
.010/.020
(0.25/0.51)
Primary
Pins
12-10,4-6
12-10,4-6
12-10,4-6
12-10,4-6
12-10,4-6
1-3,4-6
ELECTRICALS SPECIFICATIONS
@ 25
O
C * Extended Temp. Range Models
1
1
2
4
5
6
DRC SEC
(ohms max)
1.0 & 1.0
1.7 & 1.7
2.0 & 1.7
1.0 & 1.7
1.1 & 1.7
1.1 & 0.7
1.0 & 1.0
1.0 & 1.0
1.5 & 1.5
1.0 & 1.0
1.0 & 1.0
1.1 & 1.1
DRC PRI
(ohms max)
L
L
(uH max)
Part Number
Sch
0.8 & 0.8
0.8 & 0.8
1.0 & 0.8
0.8 & 0.8
0.8 & 0.8
1.3 & 1.3
Cw/w
(pf max)
50 & 50
50 & 50
60 & 50
60 & 50
50 & 60
50 & 40
OCL 25
O
C
(mH min)
1.2 & 1.2
1.2 & 1.2
1.6 & 1.6
1.5 & 1.2
1.5 & 1.2
1.6 & 1.6
1ct:1ct & 1ct:1ct
1ct:2ct & 1ct:2ct
1ct:2ct & 1:1.36ct
1:1.15ct & 1ct:2ct
1:1:1.266 & 1:2ct
2:2ct & 2:1
Turns Ratio
(pri:sec +/-5%)
S553-6500-03
S553-6500-05
S553-6500-06
S553-6500-07
S553-6500-08
S553-6500-09
*
Extented temp. range is -40 C to +85 C
At -40 dregee C, OCL is 600 uH min. for all low temp. models with the exception
of S553-6500-09 which is 800 uH min.. All other parameters are specified at
+25 degree C only.
Bel introduces a new ISDN TI/CEPT/
ISDN-PRI Transformer in a surface
mount package
Dual surface mount package contains both transmit
and receive transformers.
Models matched to leading transceiver chips.
Provide 1500 Vrms Isolation.
T1/CEPT/ISDN-PRI TRANSFORMERS
DUAL SURFACE MOUNT
TM0002
T101
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