2745CA [BEL]
HIGH FREQUENCY MAGNETICST1/E1 Through Hole Transformers; 高频MAGNETICST1 / E1通孔变形金刚
| 型号： | 2745CA |
| 厂家： | 
BEL FUSE INC. |
| 描述： | HIGH FREQUENCY MAGNETICST1/E1 Through Hole Transformers |
| 文件： | 总2页 (文件大小：68K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Transformers
TM00121
•
•
•
•
Operates as a line-interface pulse transformer in DS1
and CEPT applications
•
•
•
Operating temperature range: -40° C to +85° C
Meets IEC 695, 2-2 flammability requirements
Desiged for automatic machine placement into
printed wiring boards
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Only difference between the 2745AJ and 2745AJ2 is
the terminal length
•
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
Only difference between the 2745CA and 2745CA2
is the terminal length
ELECTRICAL SPECIFICATIONS at 25° C
DCR
Ω
max
Turns Ratio
Interwinding
Breakdown
Voltage
Primary
Inductance*
mH min
Leakage
Inductance
µH max
Interwinding
Capacitance
pFmax
± 2%
Shielded
Version
Part Number
Vrms min
Pri : Sec
Pri
Sec
2745AJ
2745AJ2
2745CA
2745CA2
1 : 1.07 CT
1 : 1.07 CT
1 : 1.36 CT
1 : 1.36 CT
1.0
1.0
0.8
0.8
0.7
0.7
0.50
0.50
0.85
0.85
1.00
1.00
1.2
N/A
N/A
20
850
850
___
___
0.92
0.92
1000
1000
2741H2
2741H2
1.2
20
* Measured at 10 kHz, 0.1 Vac
SCHEMATICS
Receive
Transmit
Lucent IC
Part Number
Application
2745AJ
Bel Part Number
2745AF2
2745AF2
2745AF2
2745AF2
2745G3
Bel Part Number
2745CA2
2745G3
2745AJ2
3
4
T7288
CEPT 75 / CEPT 120
DS1
T7289A
5
6
DS1
2745AJ2
2745CA2
2745G3
T7290A
T7630
T1 / CEPT 75 / CEPT 120
DS1
1
Primary
Secondary
CEPT 75.1
2745AJ2
2745CA2
2745AJ2
2745CA2
2745G3
2745AJ2
2745CA2
2745AJ2
2745CA2
2745G3
2745CA
2745CA2
CEPT 75.2 / CEPT 120
CEPT 75.1
T7688
T7689
3
1
4
2
CEPT 75.2 / CEPT 120
DS1
DS1
2745G3
2745G3
6
T7690
T7698
CEPT 75.1
2745AJ2
2745CA2
2745AJ2
2745CA2
Primary
Secondary
CEPT 75.2 / CEPT 120
©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
T1-47
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Transformers
TM00121
MECHANICAL
2745AJ
2745CA
2745AJ2
2745CA2
0.56 (14.22)
MAX
0.56 (14.22)
MAX
0.46 (11.68)
MAX
0.46 (11.68)
MAX
TERMINAL 1
IDENTIFIER
TERMINAL 1
IDENTIFIER
0.35 (8.89)
MAX
0.35 (8.89)
MAX
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
0.110 (2.79)
±0.010 (0.25)
0.155 (3.94)
0.150
(3.81)
0.150
(3.81)
1
3
2
5
1
3
2
5
0.250
(6.35)
0.250
(6.35)
6
4
4
6
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
T1-48
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