KA4947_13 [COILCRAFT]
Flyback Transformer â KA4947-AE;
| 型号： | KA4947_13 |
| 厂家： | 
Coilcraft lnc. |
| 描述： | Flyback Transformer â KA4947-AE |
| 文件： | 总1页 (文件大小：132K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Document 890
Flyback Transformer
–
KA4947-AE
• Developed for the Cymbet CBC-EVAL-09 Universal Energy
Harvester Evaluation Kit
• Excellent coupling coefficient (k = 0.95)
• Small footprint
Core material Ferrite
Environmental RoHS compliant, halogen free
Weight 1.27 g
Terminations RoHS compliant silver-palladium-platinum-glass frit.
Ambient temperature –40°C to +85°C with Ipk current
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation 100 V
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Mean Time Between Failures (MTBF) / Failures in Time (FIT)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 250/7″ reel; 1000/13″ reel; Plastic tape: 16 mm wide,
0.28 mm thick, 12 mm pocket spacing, 4.83 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Primary (L1)
DCR max
2
Part
number
Turns
ratio
inductance
1
3
±±20 (µH)
L1
L±
Ipk (A)
KA4947-AE_
2: 1
400
1.10
0.875
0.23
1
2
4
3
1. When ordering, please specify packaging code:
KA4947-AEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (250 parts per full reel).
0.315 0.003
8,0 0,08
103B
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter C instead.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (1000 parts per
full reel).
0.315 0.003
8,0 0,08
2. Inductance is measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP
4284A LCR meter or equivalent.
3. Peak primary current drawn at minimum input voltage
4. Electrical specifications at 25°C.
0.185
max
4,7
Recommended
Land Pattern
0.335
8,50
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
2
3
4
0.065
1,66
45°
+
V
+
D
3
1
2
0.335
8,50
C
V
L1
L2
OUT
0.097
2,47
0.065
1,65
4
IN
C
1
–
PWM
0.067
1,69
inches
mm
Dimensions are in
–
Typical Flyback Converter
Document 890 Revised 08/09/13
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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