defining a degree of excellence
T1/CEPT/ISDN-PRITRANSFORMER
S559-6400-00
TM0003
SCHEMATIC
Bel offers a dual, T1, surface mount
transformer packaged to provide both transmit and
12
11
9
10
8
7
receive transformers. This design is easily custom-
ized for other leading transceiver chips by adjusting
the turns ratio.
* Dielectric Strength 1500 VAC.
1
2
5
6
3
4
* Temperature Range is
-40oCto85oC.
SUGGESTED
PAD LAYOUT
MECHANICALS
0o -5o
0.675(17.15)
0.500
(12.7)
Max
12
7
Date Code
bel
0.400 0.470
(10.16) (11.94)
0.60(15.24)
Max
0.640
(16.3)
0.400
(10.2)
S559-6400-00
Max
Max
0.055
(1.40)
1
6
0.10(2.54)
0.10(2.5) Typ
0.03(0.76)
0.05(1.3) Typ
0.340
(8.64)
Max
0.015(0.38)Min
0.02(0.51) Max
@ 25O C
ELECTRICALS
Turns Ratio +/- 5%
Part
All dimensions are in inches(mm).
Dimension Tolerance is +/-0.01(0.25)
unless otherwise specified.
Number
Pins (10-12):(1-3)
Pins (4-6):(7-9)
1CT:1CT
S559-6400-00 1CT:1.15CT
Primary
Leakage
Inductance
LL(µH)Max
Dielectric
Strength
(VAC)
Interwinding Capacitance
(pF) Max
DCR(ohms)
Max
Inductance
Part
OCL(mH)Min
Number
Pins (4-6) and
Pins (10-12)
Pins (1,2,3) to Pins (10,11,12)
and Pins (4,5,6) to Pins (7,8,9) (1-3)
Pins
Pins
(10-12)
Pins Pins
(4-6) (7-9)
Pins (4-6) and
Pins (10-12)
S559-6400-00
1.5
0.8
60
1.1 1.0 1.0 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.
Far East Office
Bel Fuse Ltd.
European Office
Bel Fuse Europe Ltd.
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
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366
T102