 
SMT PoE Transformers
for
Silicon Laboratories Si3400
- Specified by Silicon Laboratories for Si3400 Powered Device Controller
- Designed for 10 Watt, IEEE 802.3af-compliant PoE applications
- 36 – 72 V input. Versions for 12 V, 5 V and 3.3 V output
- 400 kHz operating frequency
- Power inductor DO5010H-333 also specified for Si3400 circuit.
- RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel
over phos bronze terminations.
 Photo  Pricing  Materials declaration FA2671
FA2672 FA2732
PDF data sheet
SPECIFICATIONS
 Dimensions  Schematic
Tape and reel specifications
 |
|
FA2671-AL_ |
40.0 |
36.0 |
0.098 |
0.062 |
0.398 |
10 : 3 |
1.3 |
3.3 V, 3.0 A |
|
FA2672-AL_ |
40.0 |
36.0 |
0.098 |
0.085 |
0.340 |
10 : 4 |
1.3 |
5.0 V, 2.0 A |
|
FA2732-AL_ |
40.0 |
36.0 |
0.098 |
0.156 |
0.370 |
1 : 1 |
1.3 |
12.0 V, 0.83 A |
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| 1 |
When
ordering, please specify packaging code: e.g. FA2732-ALD |
|
Packaging: |
D = 13" reel, machine-ready
EIA-481 embossed plastic tape (200 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
D instead. |
| 2 |
Inductance is for the primary, measured at
400 kHz, 0.4 Vrms, 0 Adc. |
| 3 |
Ipk
is peak primary current drawn at minimum input voltage. |
| 4 |
DCR for the
secondary is per winding. |
| 5 |
Leakage inductance is measured across the primary with all other windings shorted. |
| 6 |
Turns ratio is with
the secondary windings connected in parallel. |
| 7 |
Output is with the secondary windings connected in parallel. |
| 8 |
Ambient temperature range: |
–40°C to +85°C |
| 9 |
Storage temperature range: |
Component: –40°C to +85°C
Packaging: –55°C to +80°C |
| 10 |
Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. |
| 11 |
Electrical specifications at 25°C. |
| Refer to Soldering Coilcraft Components before soldering. |
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