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

Flyback Power Transformer

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

EPC3169-X

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

CSC3169-X

Rev. 1

2/25/04 FT

Package

Voltage

(Vdc)

Primary

OCL

(µH ± 10%)

85

85

@ 10 KHz,

0.1 Vrms

LM2587/88

LM2587/88

Chipset

18-36

18-36

V in

Pin 1-2

12

5

V out

1

Current

(Amp. Max.)

PCA

Part

Number

EPC3169-3

EPC3169-4

-12

12

V out

2

N

-12

V out

3

1.0

2.5

Sec.

1

1.0-

0.5

Sec.

2

N

0.5

Sec.

3

A

B

Schematic

• Used in SMPS Flyback Topology

• Designed for use with National Semiconductor Chip LM2587/88

• UL94V-0 Recognized Components

• UL1446 Class B Insulation System

• Very Low Core Loss

• Isolation : 750 Vrms •

200 KHz Switching Frequency : “N” means Not Required/No Connections •

T3

T4

Xfmr

Code

1:.8:.8

1:.35:.8:.8

Turns

Ratio

Schematic A

1

2

Vin

6

7

9

10

Vout 1

Vout 2

Schematic B

Vin

6

7

9

10

Vout 1

Vout 2

Vout 3

2

1

5

4

.641

(15.60)

.026

(.650)

.831 Max.

(21.10)

PCA

EPC3169-X

Date Code

.823

Max.

(20.90)

.159

Min.

(4.05)

.012

(.300)

1.040 Max.

(26.30)

.201

(5.10)

7 Plcs

.803

(20.40)

15

6

10

Pin # 1

.150

(3.80)

.110

Min.

(2.80)