Document 853
For Akros AS1135
Flyback Transformers PoE Controller
• Flyback transformers for IEEE802.3at PoE applications
• Input voltage GA3568: 36 – 57 V; HA3809: 10 – 57 V
• 1500 Vrms, one minute isolation from primary and bias to
secondary and sync windings.
Core material Ferrite
Terminations RoHS tin-silver (96.5/3.5) over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 11.4 – 11.8 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)
Packaging 175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick,
32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance Inductance
at0A2 at Ipk3
number1 ±±0ꢀ(µH) min (µH) pri
Leakage
inductance5
max (µH)
DCR max (Ohms)4
sec bias sync
Turns ratios6
pri:sec pri:bias pri:sync (A)
Part
Ipk3
Output7
GA3568-DL_
HA3809-AL_
60
30
54
25
0.132 0.0055 0.220 0.200
0.042 0.010 0.165 0.165
1.20
0.680
1:0.167 1:0.29 1:0.29
1:0.176 1:0.29 1:0.29
2.6
3.9
3.3 V, 9.1 A
3.3 V, 9.1 A
1. When ordering, please specify termination and packaging codes:
Dot indicates pin 1
12
1
6
HA3809-ALD
Termination: L = RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
0.810
20,57
max
S = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel).
Quantities less than full reel available: in tape (not machine ready) or with leader
and trailer ($25 charge).
7
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is
eliminating the need for multiple packaging codes. When ordering, simply change
the last letter of your part number from B to D.
1.181
30,00
max
Parts manufactured prior
to December 2011 may
be marked differently.
2. Inductance is for the primary, measured at 300 kHz, 0.7 Vrms. For the GA3568-DL inductance is per winding.
3. 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 windings with the secondary windings shorted.
6. Turns ratios are for the primary (windings connected in parallel for the GA3568-DL) and with the sec-
ondary windings connected in parallel.
0.425
max
10,80
7. Output of the secondary is with the windings connected in parallel. Bias winding output is 5 V, 20 mA.
8. Electrical specifications at 25°C.
0.004/0,10
0.827
21,00
0.969
24,60
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.080
2,03
GA3568-DL
HA3809-AL
4
3
8
10
8
0.930
23,62
0.050
1,27
0.028
0,711
10
3
Pri
1
7
1
6
1
Pri
Sec
Sec
1
2
5
9
7
11
9
7
11
Recommended
Land Pattern
5
Sync
12
Sync
Bias
6
Bias
6
12
12
0.118
3,0
0.118
3,0
Dimensions are in
0.130
3,30
Primary windings and secondary
windings each to be connected in connected in parallel on
parallel on PC board. PC board.
Secondary windings to be
inches
mm
Document 853 Revised 05/18/10
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2021
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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