PoE Synchronous Flyback Transformer
ELECTRONICS INC.
EPC3408G-LF
• Designed to work with LT42691 Chip
• Storage Temperature : -40°C to +125°C
• Operating Temperature : -40°C to +85°C
• Small Size and Cost Effective
• Max. Duty Cycle : 42%
• Lead Free
Electrical Parameters @ 25° C
Primary OCL
(µH ± 10%)
@ 100 KHz,
1.0 Vrms
37.5
Pins 3-5
Input
Voltage
(Vdc)
Secondary
Output
Auxiliary
Output
Leakage
Inductance
(µH Max.)
@ 100 KHz,
1.0 Vrms
Turns Ratio
Aux : Pri : Sec1:Sec2
1:1.67:0.25:0.25
Pins
1-2:3-5:10-7:9-6
Pri.
0.085
Pins
3-5
DCR
(Ω Max.)
Sec.
0.0065
Pins 9-6 or
Pins10-7
Aux.
0.09
Pins
1-2
36-57
Pins 3-5
3.3 (7A)
Pins 10/9 - 7/6
12 (200 mA)
Pins 1-2
0.60
Pins 3-5 with
others shorted
• Isolation :
1500 Vrms (Wdg-Wdg, Wdgs to Core)
•
0.550
Max.
(13.97)
6
10
Package
0.050
(1.27)
0.090
(2.29)
1
Aux.
2
Component
Placement
Outline
0.740 x 0.550
(18.80 x 13.97)
3
Pri.
5
Schematic
0.550
Max.
(13.97)
PCA
EPC3408G
-LF
D.C.
0.715
(18.16)
Pad
Layout
10
Sec. 1
7
9
Sec. 2
6
Output
5
1
0.028
(0.711)
0.098
(2.49)
0.098
(2.49)
0.485
Max.
(12.32)
0.005/0.015
(0.127/0.381)
0°-8°
0.031
(0.787)
0.695
Max.
(17.65)
0.008/0.012
(0.203/0.305)
Notes :
1. Lead Finish
2. Peak Solder Rating
3. Weight
4. Packaging Information
Tube :
Tape & Reel :
EPC3408G-LF
Hot Dipped Sn or SnCu
245°C
6.6 grams
40 pieces/tube
400 pieces/13” reel
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3408G-LF Rev.4 9/2/09 JDG
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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EEWORLD
