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© Coilcraft Inc. 2018
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.
Flyback Transformer
Document 656
Document 656 Revised 10/01/18
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over copper. Other
terminations available at additional cost.
Weight 68 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
Tray packaging: –40°C to +80°C
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 30 parts per tray
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
For ON Semiconductor
NCP1606 PFC Controller
1
15
12
14
11
13
10
7
8
3
Aux
Pri
Sec
Secondary windings to be connected
in parallel on the PC board
Dimensions are in inches
mm
• Designed for 90 Watt applications
• Operates in discontinuous conduction mode with an input of
85 – 265 Vac, 1.28 Arms maximum
• 3000 Vrms isolation from primary and auxiliary to secondary
Inductance Inductance Leakage
Part at 0 A1 at Ipk2
DCR max (Ohms)3 inductance Turns ratio4 Ipk2
number ±10% (µH) (µH) pri aux sec max (µH) pri : aux pri : sec (A) Output5
GA3366-BL 300 270 0.210 0.073 0.0053 7.45 1 : 0.118 1 : 0.147 3.1 19.5 V, 4.62 A
1. Inductance measured at 100 kHz, 1.1 Vrms, 0 Adc using an Agilent/
HP 4263B impedance analyzer or equivalent.
2. Peak primary current drawn at minimum input voltage.
3. DCR for the secondary is with the windings connected in parallel.
4. Turns ratio is with the secondary windings connected in parallel.
5. Output of the auxiliary winding is 16 V, 20 mA.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
1.15
29,2
0.157
4,0
1.378
35,0
max
1.59
40,5
max
0.197
5,0 Recommended
PC Board
Layout
min
0.039
1,0
0.055
1,4
1.71
43,5 max
116
89
Dot indicates pin 1
EER35L Core
