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

25W Flyback Transformer

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• Designed to work with Linear Tech. LTC4278

• Bobbin : UL94V-0 Recognized Materials

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

• Operating Temperature : -40°C to +85°C

• Class 130ºC Insulation System

• Duty Cycle : 62% Max.

• Switching Frequency : 250kHz

• Add “-LF” after part for Lead Free

EPC3472G & EPC3472G-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

CSC3472G & -LF

Rev.8 10-28-13 JDG

Dielectric Rating

(Vrms)

1500

Wdg. - Wdg.

Wdgs. - Core

0.25

Pri. w/ Aux. and Sec.

shorted

Leakage Inductance

(µH Max.)

@ 100 KHz,

1.0 Vrms

Inductance

(µH ± 5%)

@ 100 KHz,

1.0 Vrms

9.0

Pri.

DCR

(m

Ω Typ.)

13.5

Pri.

280

Aux.

2.6

Sec.

1:0.375

Pri.:Sec.

1:0.75

Pri.:Aux.

Turns

Ratio

Notes :

1. Lead Finish

2. Peak Solder Rating

(for wave solder process Only)

3. Weight

4. Packaging Information

(Tray)

EPC3472G

SnPb

225°C

13.5 grams

40 pcs / tray

EPC3472G-LF

Hot Tin Dip (Sn) or SnCu

260°C

13.5 grams

40 pcs / tray

Schematic

Package

0.830

(21.08)

7

6

1

12

0.028

(0.71)

0.875

(22.23)

0.118

(3.00)

0.866

(22.0)

0.150

(3.81)

0.118

(3.00)

0.080

(2.03)

Component Outline

1.20 x 0.840

(30.48 x 21.34)

PCB Layout

(Top View)

0.440 Max.

(11.18)

1.128

(28.65)

0.079

(2.01)

0.004

(0.10)

6

1

7

12

5

1

6

2

Pri.

9V to 57V

3

8

7

12

11

4

Aux.

10V (30mA)

Sec.

5V (5A)

Cw-w

(pF Typ.)

@ 100 KHz,

1.0 Vrms

95

Pri. to Aux. and Sec.