2754H2 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – ISDN MAGNETICS U Interface Transformers

ISDN MAGNETICS
U Interface Transformers
TM00203
• Water-soluable flux and total-immersion cleaning
compatible
• Qualified per Bellcore TR-TSY-000357-1
• Compatible with various Lucent transceiver ICs
• UL and CSA approved
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
± 2%
Secondary
Inductance*
mH min
Leakage
Inductance
µH max
2754H2
1.0 : 1.5
77.0
172
2754J2
1.0 : 1.5
77.0
172
2754K2
1.0 : 1.5
77.0
172
* Measured at 1 kHz, 0.1 Vac
DCR
Ω
Pri
5.2 - 5.6
6.4 - 7.35
6.1 - 7.4
Sec
12.35 - 13.55
11.7 - 13.65
14.1 - 17.4
Isolation
Vrms
min
1000
1000
1500
Part Number
2754H2
2754J2
2754K2
Compatible Transceiver ICs
IC Mfr
IC Part Number
Lucent
T7234
T7237
T7256
T7264
SCHEMATIC
2754H2
2754J2
2754K2
5
9
1
Primary
6
CT
10
7
Secondary
©2001 Bel Fuse Inc. Specifications subject to change without notice. 02.01
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
T2-7