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

Stand-Off Type Pulse Transformers

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• UL94V0 Recognized Materials

• UL1446 Class B Insulating System

• Add “-LF” after part number for Lead-Free

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

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

• IR : 10 K meg

Ω Min. 500 Vdc

• Hipot : 500 Vdc

EP157XX & EP157XX-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

CS157XX & -LF

Rev. 3

6/2/08 RR

OCL

Sine Wave

(µH Min.)

5000

2000

500

200

50

20

10

5000

2000

500

200

20

200

20

2000

500

200

Leakage

Inductance

(µH Max.)

1.3

0.8

0.4

0.3

0.5

0.4

0.5

3.6

1.8

1.1

0.8

1.5

1.1

1.3

2.5

0.9

0.8

25

16

8.5

5.0

5.2

3.2

3.7

25

16

8.5

5.0

5.8

5.0

3.2

16

8.5

5.0

Primary

Et-Constant

(V-µSec. Min.)

DCR

(

Ω Max.)

PCA

Part

Number

EP15760(-LF)

EP15761(-LF)

EP15762(-LF)

EP15763(-LF)

EP15764(-LF)

EP15765(-LF)

EP15766(-LF)

EP15767(-LF)

EP15768(-LF)

EP15769(-LF)

EP15770(-LF)

EP15772(-LF)

EP15777(-LF)

EP15779(-LF)

EP15782(-LF)

EP15783(-LF)

EP15784(-LF)

Turns

Ratio

(± 5%)

1:1:1

1:1:1

1:1:1

1:1:1

1:1:1

1:1:1

1:1:1

2:1:1

2:1:1

2:1:1

2:1:1

2:1:1

3:1:1

3:1:1

4:2:1

4:2:1

4:2:1

60

37

32

18

18

21

22

33

19

11

8

12

7

6

20

13

8

Interwinding

Capacitance

(pF Max.)

Rise

Time

(nS Max.)

10.5

8.2

5.3

4.2

5.6

4.1

5.1

16

11

5.6

3.2

7.5

3.6

2.7

13

4.7

3.7

3.9

2.5

1.3

0.9

1.3

0.9

0.9

3.9

2.5

1.3

0.9

1.3

0.9

0.9

2.5

1.4

0.9

Pri.

3.9

2.5

1.3

0.9

1.3

0.9

0.9

2.0

1.4

0.7

0.5

0.8

0.4

0.4

1.4

1.8

0.9

Sec.

3.9

2.5

1.3

0.9

1.3

0.9

0.9

2.0

1.4

0.7

0.5

0.8

0.4

0.4

0.8

0.5

0.4

Tert.

Schematic

5

6

4

3

1

2

N3

N2

N1

3 Windings

Package

2

1

PCA

EP157XX(-LF)

D.C.

5

.350

Max.

(8.89)

.500 Max.

(12.70)

.400

(10.16)

.070 Min. (1.78)

.250

Max.

(6.35)

.500 Min.

(12.70)

.200

(5.08)

.020

(.508)

6

3

4

.100

(2.54)

Notes :

2. Peak Temperature Rating

3. Weight

4. Packaging Information

(Tube)

EP157XX

SnPb

225°C

(10 +2/-0) Seconds

TBD grams

TBD pcs / tube

EP157XX-LF

Hot Dipped Sn or SnCu

260°C

(10 +2/-0) Seconds

TBD grams

TBD pcs / tube