MODEM MAGNETICS
GlobalV.90 ModemTransformer
TM00401
•
Provides isolation and balance while minimizing signal
distortion and insertion loss in high speed modem
applications
•
Designed to provide supplementary insulation at a
working voltage of 250V
•
•
Approved by UL and BABT
•
•
Designed to match a 600Ω line to a 530Ω load
Minimum interwinding breakdown voltage of 1500 Vrms
Qualified per Bellcore TR-TSY-000357-1
ELECTRICAL SPECIFICATIONS AT 25° C
Insertion
Loss
dB
Frequency
Response
dB
DCR
Ω
max
Harmonic
Distortion
dB
Longitudinal
Balance
dB
Return Loss
dB
Turns Ratio
±2%
Part Number
-10 dBm,
600 Hz
@ 1kHz
200 Hz - 4000 Hz 200 Hz - 4 kHz
Pri
Sec
200 Hz - 4000 Hz
0574-1000-22
1 : 1
55
58
≤1.2
≥18
≤0.25
≤-76
≥60
SCHEMATIC
0574-1000-22
4
3
1
2
SECONDARY
PRIMARY
©2000 Bel Fuse Inc. Specifications subject to change without notice. 04.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T4-3
