2795P [BEL]
HIGH FREQUENCY MAGNETICS T1/E1 Miniature Surface Mount Tranformers; 高频磁性元件T1 / E1微型表面贴装Tranformers
| 型号： | 2795P |
| 厂家： | 
BEL FUSE INC. |
| 描述： | HIGH FREQUENCY MAGNETICS T1/E1 Miniature Surface Mount Tranformers |
| 文件： | 总2页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HIGH FREQUENCY MAGNETICS
T1/E1 Miniature Surface Mount Tranformers
TM00142
•
•
•
Meet pulse template and return loss requirements of
T1/E1 interface circuits
•
•
•
Operating temperature range: -40° C to +85° C
Meets IEC 695, 2-2 flammability requirements
Minimum interwinding breakdown voltage of 1500
Vrms
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Maximum inductance unbalance of center-tapped
windings is 0.2%
•
Reliability testing: shock, vibration, temperature cycling,
temperature - humidity - bias
ELECTRICAL SPECIFICATIONS at 25° C
DCR
Ω
max
Turns Ratio
Surge Voltage Capability3
Primary
± 1%
Leakage
Interwinding
Capacitance
pF typ
Part Number
Inductance1
mH min
Inductance2
µH max
Pri : Sec
(4 - 6)
(3 - 1)
Metallic
Longitudinal
2795R
2795D
2795B
2795P
2795C
2795AB
1 : 1CT
1.5
1.4
1.6
1.2
1.3
2.5
0.85
0.7
1.6
1.7
35
35
35
35
35
40
3000
2500
1 : 1.08CT
1 :1.14CT
1 : 1.26CT
1 : 1.35CT
1CT: 2
1.5
2.2
1.4
1.9
4.3
1.7
2.6
1.8
2.6
2.2
3000
2500
3000
2500
2500
2500
2500
2500
2500
2500
0.8
0.65
0.8
0.8
1. Measured at 10 kHz, 0.1 Vac
2. measured at 100 kHz, 0.1 Vac
3. See Supplementary Information
SCHEMATICS
2795B
2795C
2795D
2795P
2795R
2795AB
4
3
5
3
4
6
CT 5
1
CT
2
1
Primary
Secondary
6
Primary
Secondary
©2000 Bel Fuse Inc. Specifications subject to change without notice. 04.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T1-93
HIGH FREQUENCY MAGNETICS
T1/E1 Miniature Surface Mount Tranformers
TM00142
MECHANICAL
2795AB
2795B
2795C
2795D
2795P
2795R
0.240
[6.10]max
6
5
4
A
0.186
[4.72]
0.350
[8.90]
max
0.265
[6.73]
ref
0.073 [1.85]
0.065
[1.65]
0.040 [1.02]
0.057
[1.45]
A
Terminal 1 ID
0.020[0.51]
1
2
3
0.364
[9.25]
0.234
[5.95]
No metallization
or solder mask
in cross-hatched
designated area
0.073 [1.85]
0.265
[6.73]
max
0.033 [0.84]
0.055
[1.40]
Suggested PCB Pad Layout
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
0˚/8˚
0.015 [0.40]
R0.023 [0.60]
Supplementary Information
Safety Agency Compatibility
Surge Voltage Capability
Flammability Compliance
Simulation Model
Underwriters Laboratories, Inc. UL 1950
10/700 µs; 10 repetitions of alternating polarity, generator output: peak voltage, 25 Ω source
IEC-695, 2-2 (needle flame test), materials are UL 94 VO approved
SPICE computer simulation file available on request
Tape and Reel; 16 mm wide by 12 mm pitch; 13 inch OD; 4 inch ID
650 transformers per reel, maximum
Surface-Mount Packaging
Meets ANSI/EIA 481-2 Carrier Tape Standards—JEDEC SO package
0.004 inch [0.10 mm]
Machine placement (recommendation: locate by terminals, not body)
Terminal Lead Coplanarity
PWB Process Capability
©2000 Bel Fuse Inc. Specifications subject to change without notice. 04.00
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
T1-94
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