ISDN MAGNETICS
Dual S Interface Transformer
TM9935
•
Consists of two identical transformer assemblies
mounted in a molded 16-pin DIP terminal header
•
•
Minimum interwinding breakdown voltage of 2400 Vrms
Qualified per Bellcore TR-TSY-000357-1
ELECTRICAL SPECIFICATIONS at 25° C
DCR
Ω
max
Part Number
Turns Ratio
± 2%
Primary
Inductance
mH min
Leakage
Inductance
µ
H max
Pri
Interwinding
Capacitance
pF max
Sec
Distributed
Parallel
Capacitance
pF max
2768A
1 : 2.5
22.0
4.0
2.3
5.8
100
100
SCHEMATIC
Compatible Transceiver ICs
2768A
1
IC Mfr
IC Part Number
T7250C
T7256
T7234
16
2
CT
3
Lucent
4
5
13
12
6
CT
7
8
9
Primary
Secondary
©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T322
BEL [ BEL FUSE INC. ]
