PoE Flyback Transformer
E L E C T R O N I C S I N C .
EPC3393 & EPC3393-LF
• 45W PoE Application
• Designed to work with LT1725
• Used in Flyback Topology Converter
• Bobbin : UL94V-0 Recognized Materials
• UL 1446 Class B Insulation System
• Duty Cycle : 50% Max.
Electrical Parameters @ 25° C
Inductance
(µH ± 10%)
DCR
(WTyp.)
Turns
Ratio
Leakage Inductance
Dielectric Rating
(µH Max.)
(Vrms)
@ 100 KHz,
1.0 Vrms
@ 100 KHz,
1.0 Vrms
42
0.020
0.308
0.020
2.4:1
1:1
1.0
1500
Pins
1-2
Pins
1-2
Pins
4-5
Pins
7-10
Pins
1-2:4-5
Pins
1-2:7-10
Pins 1-2 All
other wdg’s shorted
Wdg’s - Wdg’s
Wdg’s - Core
Package
Schematic
1
.738
(18.75)
Pri.
(36-57 Vdc)
.148
7
2
4
Sec.
36 V (1.25 A)
(3.75)
1.010
(25.65)
5 Places
10
Vcc
15 V (10 mA)
11
6
5
.787
(20.00)
PCB Layout
(Top View)
Component Outline
1.06 x 1.06
(27.00 x 27.00)
1.020
(25.91)
1
5
Ø = .042 Drill
(1.07)
Ø = .090 Pad
(2.29)
.197
(5.00)
4 Places
Pin 1
I.D.
PCA EPC3393(-LF)
D.C.
.650
(16.50)
.177 (4.50)
.118
(3.00)
.787
(20.00)
.197
(5.00)
.148
(3.75)
Notes :
EPC3393
SnPb
EPC3393-LF
Hot Tin Dip (Sn) or (SnCu)
260°C
1. Lead Finish
2. Peak Solder Rating
225°C
(for wave solder process Only)
3. Weight
4. Packaging Information
21.6 grams
21.6 grams
(Tube)
20 pcs / tube
20 pcs / tube
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3393 & -LF Rev. - 12/10/07 JDG
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com