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Flyback Transformers for
Akros AS1113 PoE Controller

  • Referenced on Akros Silicon Application Note AN006
  • Designed for 13 Watt PoE applications
  • For 30 Watt applications see GA3568-DL / HA3809-AL.
  • Operates with 10 – 57 V input at 300 kHz
  • 1500 Vrms, one minute isolation from primary and bias to secondary
  • 5 V, 20 mA bias and sync winding outputs
  • RoHS-compliant. 260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations.

SPECIFICATIONS


Part number1
Click for samples
L at 0 A2
±10% (µH)
L at Ipk3
min (µH)
DCR max
(Ohms)4
Leakage L5
max (µH)
Turns ratio6 Ipk3
(A)  
Output7
HA3585-BL_ 40 36 Pri:
Sec:
Bias:
Sync:
0.140
0.014
0.220
0.255
0.740 Pri : Sec
Pri : Bias
Pri : Sync
1 : 0.29
1 : 0.43
1 : 0.43
2.6 3.3 V, 3.9 A
HA3586-BL_ 40 36 Pri:
Sec:
Bias:
Sync:
0.140
0.024
0.230
0.265
0.625 Pri : Sec
Pri : Bias
Pri : Sync
1 : 0.36
1 : 0.43
1 : 0.43
2.6 5.0 V, 2.6 A
1 When ordering, please specify packaging code: e.g. HA-3585-BLD
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 measured at 300 kHz, 0.5 Vrms, 0 Adc
3 Ipk is peak primary current drawn at minimum input voltage.
4 DCR for the secondary is with the windings connected in parallel, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Leakage inductance is for the primary and is measured with the secondary shorted.
6 Turns ratios are with the secondary windings connected in parallel.
7 Output is with the secondary windings connected in parallel. Output of the bias and sync windings: 5 V, 20 mA.
8 Ambient temperature range: −40°C to +125°C
9 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°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.

PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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Updated: March 22, 2017