2718BD2 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – ISDN MAGNETICS UPO Interface Transformers

ISDN MAGNETICS
UPO Interface Transformers
TM00208
• Operates as a pulse transformer at 384 Kbps in ISDN U • Primary winding can withstand 70mA of direct current
interface applications
• Minimum interwinding breakdown voltage of 1500 Vrms
• Qualified per Bellcore TR-TSY-000357-1
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
± 2%
Primary
Inductance¹
mH min
Leakage
Inductance²
µH max
2718BD2
1CT : 1.25
2.5
15
2718BG2
1CT : 2
2.1
11.5
1 _{Measured at 1 kHz, 0.1 Vac}
2 _{Measured at 100 kHz, 0.01 Vac}
DCR
Ω
max
Pri
Sec
3.6
3.4
2.7
6.1
Interwinding
Capacitance²
pF max
With terminals
7 & 9 connected
60
60
Part Number
2718BD2
2718BG2
Compatible Transceiver ICs
IC Mfr
Siemens
Siemens
IC Part Number
PEB2095
PEB2096
SCHEMATIC
10
7
CT
9
6
Primary
1
5
Secondary
©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
T2-19