2771B [BEL]
HIGH FREQUENCY MAGNETICS T1/E1 Surface Mount Transformers; 高频磁性元件T1 / E1表面贴装变压器
| 型号： | 2771B |
| 厂家： | 
BEL FUSE INC. |
| 描述： | HIGH FREQUENCY MAGNETICS T1/E1 Surface Mount Transformers |
| 文件： | 总2页 (文件大小：52K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HIGH FREQUENCY MAGNETICS
T1/E1 Surface Mount Transformers
TM00133
•
•
•
Operate at the T1 rate of 1.544 Mb/s and the E1 rate
of 2.048 Mb/s
•
•
•
Operating temperature range: -40° C to +85° C
Meets IEC 695, 2-2 flammability requirements
Split windings provide maximum application
flexibilty
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Minimum interwinding breakdown voltage of 1500
Vrms
•
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
ELECTRICAL SPECIFICATIONS AT 25° C
Turns Ratio
DCR
Ω
max
Leakage
Interwinding
Capacitance
± 2%
Primary
Part Number
Inductance2
µH max
Inductance1
pF max
mH min
Pri : Sec3
Pri
Sec3
2771B
2771C
1 : 1.14 CT
1.75
2
3
0.8
0.8
80
30
1 CT : 2 CT4
3.154
1.104
2.25
1. measured at 10 kHz, 0.1 Vac
2. measured at 100 kHz, 0.1 Vac
3. connect 6 to 7
4. connect 2 to 3
SCHEMATICS
2771B
2771C
4
5
4
2
5
7
6
7
6
CT
3
1
8
8
1
1 CT : 2 CT
1 : 1.14 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
T1-75
HIGH FREQUENCY MAGNETICS
T1/E1 Surface Mount Transformers
TM00133
MECHANICAL
2771B
2771C
0.590
(14.99)
MAX
0.160 (11.68)
0.120 (3.05)
6
7
5
8
0.495
(12.57)
MAX
0.430
(10.92)
MAX
4
1 2 3
TERMINAL 1
IDENTIFIER
0.395
(10.03)
MAX
0.23 (0.58) X 0.100 (2.54) FOOT
(PHOSPHOR BRONZE,
SOLDER COATED)
0.004
8 EDGES
0.100 (2.54) TYP
RECOMMENDED PCB PATTERN
COMPONENT CENTER
0.255
(6.48)
0.120 (3.05) TYP
0.045
(1.14)
TYP
0.008 (0.203)
2 PLACES
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
T1-76
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