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Flyback Transformer for
Akros AS1135 PoE Controller

  • Referenced on Akros Silicon Application Note AN025
  • Designed for 30 Watt applications
  • For 13 Watt applications see HA3585-BL / HA3586-BL.
  • Input voltage: GA3568-DL: 36 – 57 V; HA3809-AL: 10 – 57 V
  • 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
GA3568-DL_ 60 54 Pri:
Sec:
Bias:
Sync:
0.132
0.0055
0.220
0.200
1.2 Pri : Sec
Pri : Bias
Pri : Sync
1 : 0.167
1 : 0.29
1 : 0.29
2.6 3.3 V, 9.1 A
HA3809-AL_ 30 25 Pri:
Sec:
Bias:
Sync:
0.042
0.010
0.165
0.165
0.680 Pri : Sec
Pri : Bias
Pri : Sync
1 : 0.176
1 : 0.29
1 : 0.29
3.9 3.3 V, 9.1 A
1 When ordering, please specify packaging code: e.g. HA-3809-ALD
Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (175 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 300 kHz, 0.7 Vrms, 0 Adc. For GA3568-DL inductance is per winding
3 Ipk is peak primary current drawn at minimum input voltage.
4 DCR for the secondary is with the windings connected in parallel. For GA3568-DL DCR for the primary is with both windings connected in parallel.
5 Leakage inductance is for the primary and is measured with the secondary shorted.
6 Turns ratios are for the primary (windings connected in parallel for the GA3568-DL) and with the secondary windings connected in parallel. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
7 Output is with the secondary windings connected in parallel. Bias and sync winding output: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 21, 2017