MODEM MAGNETICS
V.90 Modem Surface Mount Transformer
TM00402
•
•
Designed for full compliance with V.90 requirements
Excellent harmonic distortion characteristics
•
•
Meets UL and CSA safety standards
Minimum interwinding breakdown voltage of 1250 Vrms
ELECTRICAL SPECIFICATIONS at 25° C
Insertion
Loss
dB max
Return
Loss*
dB typ
Frequency
Response
dB
DCR
Ω
±10%
Harmonic
Distortion
dB max
Longitudinal
Balance
dB min
Turns
Ratio
± 1%
Part Number
600 Hz
@ -10dB
@ 1 kHz
@ 1 kHz
100 Hz - 4000 Hz
Pri
Sec
60 Hz - 1000 Hz
1000 Hz - 4000 Hz
S574-1000-18
1 : 1
2.5
37
±0.2
120
145
-86
70
60
* Measured with a 600Ω reference and a 340Ω load.
SCHEMATIC
S574-1000-18
10
6
2
4
Primary
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 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T4-5
