C1099-AL

Document 409
Flyback Transformer
For Maxim MAX5941A
PoE Interface/PWM Controller
• Designed for IEEE 802.3af-compliant PoE applications
• Operates with 32 – 56 Volts input
• 1500 Vrms, one minute isolation between the primary and the
secondary
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 5.7 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 200 per 13″ reel Plastic tape: 44 mm wide,
0.37 mm thick, 28 mm pocket spacing, 9.0 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Part
number1
C1099-AL_
InductanceInductance
at 0 A2
at Ipk3
DCR max (Ohms)4
±5% (µH)
min (µH)
pri sec bias
133.0
126.0
0.283 0.013
Leakage
  Turns ratio6 Ipk3
Output7
max (µH)
pri : sec pri : bias
(A)
inductance5
0.480
1. When ordering, please specify packaging code:
C1099-ALD
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 300 kHz, 1.0 Vrms.
3. Peak primary current drawn at minimum input voltage.
3.5
1
12
½ Primary
XXXXY
6
7
0.865
max
21,97
0.028
0,72
0.098
2,5
0.098
2,5
0.135
3,43
0.665
16,88
Recommended
Land Pattern
0.07
1,79
Secondary
6
5
12
11
½ Primary
2
0.335 max
8,51
0.079
2,01
0.9 3.3 V, 2.5 A
8
7
1
12
C1099-AL
0.677 max
17,20
1 : 0.57
4. Primary DCR is measured with the windings connected in series. Secondary DCR is measured with the windings connected in parallel.
5. Leakage inductance is for the primary winding with the secondary winding shorted.
6. Turns ratio is for the primary connected in series and the secondary connected in parallel.
7. Output of the secondary is with the windings connected in parallel. Bias
winding output is 14 V.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot indicates pin 1
1
1 : 0.13
10
0.590
14,98
0.693
17,60
0.004 /0,10
Bias
Dimensions are in
inches
mm
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]
3
Primary windings to be connected in series and
secondary windings to be connected in parallel
on the PC board.
Document 409 Revised 10/28/08
© 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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