© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
Power Transformer
Document 441
Document 441
Revised 10/25/06
Leakage
Part
Inductance2
DCR max (Ohms)
inductance3
Turns ratio
number1
Power
min (µH)
pri
sec
bias
max (µH)
pri : sec
pri : bias
Output
C0984-CL_
18 W
395
0.127
0.065
0.789
1.75
1 : 0.88
1 : 0.44
12 V, 1.5 A (sec)
14 V, 0.03 A (bias)
The C0984-CL transformer is designed specifically for
the Maxim MAX5074 isolated PWM power IC in a
forward DC-DC 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
11 V to 76 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.
8
1
5
3
6
11
Primary
Secondary
Bias
For Maxim MAX5074
Isolated PWM Power IC
0.135
3,43
0.07
1,79
0.098
2,5
1
0.340
8,64
0.079
2,01
0.865
21,97
0.590
14,98
0.677
17,20
0.693
17.60
0.665
16,88
0.028
0,72
0.098
2,5
max
Dot indicates pin 1
max
max
1
12
6
7
Recommended
Land Pattern
0.004 /0,10
Weight:
5.8 g
Terminations:
Tin-silver over tin over nickel over phos bronze
Tape and reel:
200/13
″ reel 44 mm tape width
For packaging data see Tape and Reel Specifications section.
1. When ordering, please specify a packaging code:
C0984-CL
D
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.
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.
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