2779B [BEL]
HIGH FREQUECY MAGNETICS T1/E1 Surface Mount Transformer; 高FREQUECY MAGNETICS T1 / E1表面贴装变压器
| 型号： | 2779B |
| 厂家： | 
BEL FUSE INC. |
| 描述： | HIGH FREQUECY MAGNETICS T1/E1 Surface Mount Transformer |
| 文件： | 总2页 (文件大小：54K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HIGH FREQUECY MAGNETICS
T1/E1 Surface MountTransformer
TM00136
•
•
Operates at the T1 rate of 1.544 Mbits/s and at the
E1 rate of 2.048 Mbits/s
•
•
•
Operating temperature range: -40° C to +85° C
Meets IEC 695, 2-2 flammability requirements
Designed for transmit and receive line interface
applications
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
•
•
•
Can replace 2771C with no PWB changes
Low-capacitance design for EMI suppression
1500-Volt isolation
•
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
ELECTRICAL SPECIFICATIONS AT 25° C
DCR
Nominal Turns
Leakage
Minimum
Inductance2
mH min
Ratio
±2%
Inductance3
Ω
max
Interwinding
Capacitance1
pF typ
Interwinding
Breakdown
Voltage1
µH max
Part Number
(4-1):(5-8)1
(4-1)1
(4-1)1
(5-8)1
(4-1)1
Vrms
2779B
1CT : 2 CT
3.0
1.6
3.1
3.0
20
1500
1. connect 2 to 3 & 6 to 7
2. measured at 10 kHz, 0.1 Vac
3. measured at 100 kHz
SCHEMATIC
2779B
4
5
2
3
7
CT
CT
6
8
1
1 CT : 2 CT
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T1-81
HIGH FREQUECY MAGNETICS
T1/E1 Surface Mount Transformers
TM00136
MECHANICAL
2779B
8
7
6
5
8
1
7
2
6
3
5
4
0.256 (6.50)
0.160 (4.06)
TERMINAL 1 IDENTIFIER
3
1
2
4
0.350
(8.89)
MAX
0.050 (1.27)
0.100 (2.54)
0.004
8 EDGES
0.100
3
1
2
4
0.490
(12.45)
MAX
0.430
(10.92)
MAX
0.500
(12.7)
MAX
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
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
T1-82
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