BEL S553-6500-26

defining a degree of excellence
T1/CEPT/ISDN-PRI TRANSFORMER
S553-6500-26
TM0004
SCHEMATIC
Bel offers a dual, T1, surface mount
transformer packaged to provide both transmit
and receive transformers. This design is
easily customized for other leading transceiver
chips by adjusting the turns ratio.
12
Secondary
11
10
9
3
4
Secondary
8
7
* Dielectric Strength 1500 VAC.
2
Primary
1
0.004
* Extended Temperature Range is
-40oC to 85oC.
MECHANICALS
0.675(17.15)
Max
12
belDate
0.60
(15.24)
Max
0.500
(12.7)
7
0.470
0.400
(10.16) (11.94)
Max Max
Code
S553-6500-26
0.055
(1.40)
0.10(2.54)
0.340
(8.64)
Max
0.03(0.76)
Part
Number
S553-6500-26
Part
Number
S553-6500-26
0.400
(10.2)
6
ELECTRICALS
SUGGESTED
PAD LAYOUT
0o -5o
1
6
5
Primary
0.640
(16.3)
0.10(2.5) Typ
0.015(0.38)Min
0.02(0.51) Max
0.05(1.3) Typ
@ 25o C
Turns Ratio +/- 2%
Pins (10-12):(1-3)
All dimensions are in inches(mm).
Dimension Tolerance is +/-0.01(0.25)
unless otherwise specified.
Pins (4-6):(7-9)
1CT:1.CT
1CT:2CT
Primary
Inductance
OCL (mH) Min
Leakage
Inductance
LL (µH) Max
Pins (1-3) and
Pins (4-6)
Pins (1-2) and
Pins (4-6)
1.2
0.8
Interwinding
Capacitance
(pF) Max
Pins (1,2,3) to Pins (10,11,12)
and Pins (4,5,6) to Pins (7,8,9)
50
DCR (ohms)
Max
Dielectric
Strength
(VAC)
Pins Pins Pins Pins
(1-3) (4-6) (7-9) (10-12)
1.0 1.0 1.8
1.0
1500
Dielectric Strength is measured Pins (1,2,3) to Pins (10,11,12) and Pins (4,5,6) to Pins (7,8,9).
Primary Inductance, Leakage Inductance, and Interwinding Capacitance are measured at 100KHz, 0.02VAC.
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
T103
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