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

EPC3133-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

CSC3133-X

Rev. 3

1/26/05 FT

Package

Voltage

(Vdc)

Primary

OCL

(µH ± 10%)

5100

2100

3670

1660

2800

1800

@ 10 KHz,

0.1 Vrms

TNY253 (44 KHz)

TOP242P (132 KHz)

TNY254 (44KHz)

TNY266P (132 KHz)

TNY267

TNY268 (132 KHz)

Chipset

120-375

120-375

120-375

120-375

120-375

120-375

V in

Pin 1-3

7.5

3.3

12

5

3.3

24

V out

1

Current

(Amp.)

• Note : “N” means Not Required/No Connections •

PCA

Part

Number

EPC3133-1

EPC3133-2

EPC3133-3

EPC3133-4

EPC3133-5

EPC3133-6

Schematic A

V in Pri.

(Pin 1-3)

Sec. 3

(Fb/Bias)

Schematic B

N

6.2

N

N

N

24

V out

2

N

15

15

N

15

13

V out

3

.173

1.5

.25

1.0

2.0

0.17

Sec.

1

N

0.4

N

N

N

0.17

Sec.

2

N

.05

.05

N

.05

.05

Sec.

3

A

B

A

A

A

A

Schematic

Dielectric Rating

(Vdc)

Between Sec. Wdg’s to Core

1 sec. 4500 or 60 sec. 3750

Pri. to all Sec. Wdg’s

1 sec. 4500 or 60 sec. 3750

Between Pri. Wdg & Bias

1 sec. 1500 or 60 sec. 1000

6

7

8

9

Sec. 4

Sec. 1

Sec. 2

---

30

---

---

---

---

V out

4

---

.005

---

---

---

---

Sec.

4

.138

(3.50)

.551

(14.00)

.590

(15.00)

.669

(17.00)

.197

(5.00)

.779

(19.80)

.098

(2.50)

.197

(5.00)

.590

Typ.

(15.00)

.587

(14.90)

.157 (4.00)

.025 Sq.

(.640)

.937

(23.80)

.193 (4.90)

.669

Typ.

(17.00)

2

3

4

5

V in Pri.

(Pin 1-3)

Sec. 3

(Fb/Bias)

6

7

8

9

Sec. 1

Sec. 2

1

15

6

9

PCA

EPC3133-X

Shield is optional

Pin #2 is not connected in circuit

2

3

4

5

1

• Used in SMPS Flyback Topology

• Designed for use with Power Integration Chip

• Reinforced Insulation (Triple Insulated Wire)

• UL 94V-0 Recognized Components

• UL 1446 Class F Insulation System

• Very Low Core Loss

• Switching Frequency : 132 KHz/44 KHz • Isolation : 3750 Vrms •