2776A Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – ISDN MAGNETICS Single S Interface Transformer

ISDN MAGNETICS
Single S Interface Transformer
TM99AA
• Approved for use with Lucent Technologies chip sets for • Meets requirements for pulse template and impedance
S/T interface European ISDN applications
template according to ITU-T (CCITT I.430)
• UL, TUV and VDE approved
• Minimum interwinding breakdown voltage of 3000 Vrms
ELECTRICALS at 25° C
Part Number
Turns Ratio
± 3&
Primary
Inductance*
mH min
Leakage
Inductance
µH max
DCR
Ω
max
Pri
Sec
2776A
1 : 2.5
22.0
5.0
1.55
8.75
* Measured at 1 kHz, 0.1 Vac
Interwinding
Capacitance
pF max
100
Distributed
Capacitance
pF max
100
Part Number
2776A
Compatible Transceiver ICs
IC Mfr
Lucent
IC Part Number
T7250C
T7256
T7234
SCHEMATIC
1
3
CT
2
4
Primary
8
6
Secondary
©1999 Bel Fuse Inc. Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com