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KA4947 Fiches technique(PDF) 1 Page - Coilcraft lnc.

No de pièce KA4947
Description  Flyback Transformer ??KA4947-AE
Download  1 Pages
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Fabricant  COILCRAFT [Coilcraft lnc.]
Site Internet  http://www.coilcraft.com
Logo COILCRAFT - Coilcraft lnc.

KA4947 Fiches technique(HTML) 1 Page - Coilcraft lnc.

  KA4947_13 Datasheet HTML 1Page - Coilcraft lnc.  
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US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 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.
Document 890
Flyback Transformer – KA4947-AE
Document 890 Revised 08/09/13
• Developed for the Cymbet CBC-EVAL-09 Universal Energy
Harvester Evaluation Kit
• Excellent coupling coefficient (k = 0.95)
• Small footprint
Primary (L1)
Part
Turns
inductance2
DCR max
number1
ratio
±20% (µH)
L1
L2
Ipk (A)3
KA4947-AE_
2
: 1
400
1.10
0.875
0.23
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).
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).
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.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
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
Dimensions are in
inches
mm
0.315 ±0.003
8,0 ±0,08
0.315 ±0.003
8,0 ±0,08
0.185
4,7
max
Recommended
Land Pattern
0.335
8,50
0.335
8,50
0.067
1,69
0.065
1,66
0.097
2,47
45°
0.065
1,65
103B
4
4
2
2
3
3
1
1
L1
L2
++
D
C
PWM
C
42
31
Typical Flyback Converter
VOUT
VIN


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