C0984-CL

Document 441
Power Transformer
For Maxim MAX5074
Isolated PWM Power IC
The C0984-CL transformer is designed specifically for the
Maxim MAX5074 isolated PWM power IC in a forward DCDC converter. It can be used in power supplies for IEEE
802.3af-compliant PoE applications, IP phones, WLAN
Access-Points and a variety of other telecom applications
with an input voltage range from 36 V to 72 V.
This transformer features very low secondary winding
DCR and 1500 Vrms isolation from the primary and bias
windings to the secondary.
Coilcraft can also custom engineer a transformer to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
DCR max (Ohms)
Part Inductance2
number1 Power
min (µH)
pri
sec
bias
Leakage
inductance3
max (µH)
Turns ratio
pri : sec pri : bias
C0984-CL_ 18 W
395
0.127
0.065
0.875
1.75
1 : 0.88 1 : 0.44
1. When ordering, please specify a packaging code:
C0984-CLD
Packaging:D =13″ machine ready reel. EIA-481 embossed plastic
tape (200 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 D instead.
Dot indicates pin 1
12
1
0.135
3,43
1
C0984-CL
XXXXY
0.677 max
17,20
0.028
0,72
6
0.865 max
21,97
0.079
2,01
0.665
16,88
0.07
1,79
1
Primary
3
5
11
Secondary
8
Bias
6
0.098
2,5
0.098
2,5
Parts manufactured prior
to December 2011 may
be marked differently.
0.340 max
8,64
0.590
14,98
0.693
17.60
2. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance is for the primary winding with the other windings
shorted.
4. Operating temperature range –40°C to +125°C.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Recommended
Land Pattern
7
Output
12 V, 1.5 A (sec)
14 V, 0.03 A (bias)
0.004 /0,10
Dimensions are in
inches
mm
Weight 5.8 g
Terminations Tin-silver (96.5/3.5) over tin over nickel over phos bronze
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Packaging 200/13″ reel Plastic tape: 44 mm wide, 0.35 mm thick,
28 mm pocket spacing, 9.6 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 441 Revised 12/20/11
© 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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