Electrical Parameters @ 25° C

ISDN U Interface Transformers

CSR1101,7,9,20

Rev. -

3/30/99

• Optimizied for Leading Transceiver I.C.’s •

• Meets or exceeds UL1459 & UL1950 Standards •

• 2500 Vrms Isolation •

• See Selection Guide for I.C. Cross Reference •

Schematic

Package

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

Dimensions

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

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

Pri. DCR

(

Ω Max.)

2.4

6.0

7.2

2.4

Sec. DCR

(

Ω Max.)

2.7

3.5

3.0

2.7

OCL

(mH Min.)

7-8.3

13-18

8.4-12.6

7-8.3

Part

Number

EPR1101

EPR1107

EPR1109

EPR1120

1, 4

1, 4

1, 4

1, 4

Line Side

Pins

Schematic

A

B

C

A

55

50

50

50

IDC

(mA Max.)

Turns

Ratio

1.32:1

1.65:1

1.6:1

1.32:1

A

B

C

D

E

F

G

H

I

Dim.

Min.

.750

1.110

.430

.610

.180

---

.860

---

---

Max.

---

---

---

.600

.150

.150

.850

.020

.010

Nom.

(Inches)

(millimeters)

---

---

---

14.97

3.05

---

21.34

---

---

Min.

19.05

28.19

10.92

15.49

4.57

---

21.84

---

---

Max.

---

---

---

15.24

3.81

3.81

21.59

.508

.254

Nom.

---

---

---

.590

.120

---

.840

---

---

D

A

C

E

B

I

G

F

H

Marking :

PCA

EPR11XX

D.C.

85

14

Pin 1

I.D.

C

12

4

3

76

5

A

12

5

4

3

8

B

12

5

4

3

7

6