E L E C T R O N I C S I N C .

PoE Flyback Transformer

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• 45W PoE Applications

• Designed to work with LT1725

• Used in Flyback Topology Converter

• Bobbin : UL94V-0 Recognized Materials

• Storage Temperature : -40°C to +125°C

• Operating Temperature : 0°C to +70°C

• UL 1446 Class B Insulation System

• Duty Cycle : 50% Max.

EPC3391G & EPC3391G-LF

Product performance is limited to specified parameters. Data is subject to change without prior notice.

Electrical Parameters @ 25° C

Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25

CSC3391G & -LF

Rev. 1

12/13/07 JDG

Dielectric Rating

(Vrms)

1500

Wdg’s - Wdg’s

Wdg’s - Core

1.0

Pins 1-3 All

other wdg’s shorted

Leakage Inductance

(µH Max.)

@ 100 KHz,

1.0 Vrms

Inductance

(µH ± 10%)

@ 100 KHz,

1.0 Vrms

42

Pins

1-3

DCR

(

Ω Typ.)

0.1

Pins

1-3

0.135

Pins

5-6

0.06

Pins

8-11

2.4:1

Pins

1-3:5-6

0.9:1

Pins

1-3:8-11

Turns

Ratio

Notes :

1. Lead Finish

2. Peak Solder Rating

(for wave solder process Only)

3. Weight

4. Packaging Information

(Tube)

EPC3391G

SnPb

225°C

11.1 grams

25 pcs / tube

EPC3391G-LF

Hot Tin Dip (Sn)

260°C

11.1 grams

25 pcs / tube

Schematic

5

1

6

3

Pri.

(36-57 Vdc)

8

11

Sec.

36 V (1.25 A)

Vcc

15 V (10 mA)

Package

6

7

1

12

Pin 1 I.D.

.930

(23.62)

.810

(20.57)

.130

(3.30)

.028

(.720)

.450

Max.

(11.43)

.969

(24.60)

.118

(3.00)

.050

(1.27)

.118

(3.00)

Marking:

PCA

EPC3391G(-LF)

D.C.

.827

(21.00)

.084

(2.13)

0.004

(.100)

Component Outline

1.250 x .850

(31.75 x 21.60)

PCB Layout

(Top View)