2811B [BEL]
MODEM MAGNETICS V.90 Modem Transformer; MODEM MAGNETICS V.90调制解调器变压器
| 型号： | 2811B |
| 厂家： | 
BEL FUSE INC. |
| 描述： | MODEM MAGNETICS V.90 Modem Transformer |
| 文件： | 总2页 (文件大小：31K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEM MAGNETICS
V.90 ModemTransformer
TM00409
•
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, CSA and BABT
•
•
Designed to match a 600Ω line to a 360Ω 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
200 Hz - 3500 Hz
> 20
Part
Number
Turns Ratio
± 2%
@ 1 kHz
100 Hz - 4 kHz
Pri
Sec
-3dBm, 150 Hz 200 Hz - 3500 Hz
2811B
1 : 1
< 2.1
< 0.1
135
135
< -75
> 60
SCHEMATIC
2811B
6
4
1
3
Primary
Secondary
TYPICAL SPICETRANSMISSION MODEL
6.2mH
120
120
1
3
6
35pF
120k
40H
35pF
4
©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
T4-19
MODEM MAGNETICS
V.90 ModemTransformer
TM00409
MECHANICAL
2811B
0.565
[14.35]
0.118 [3.00]
0.020 [0.508]
Sq. wire
0.300
[7.62]
1
6
3
4
0.710 [18.03]
max sq.
0.500
[12.70]
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
198 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
PrestonTechnology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
T4-20
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