Electrical Parameters @ 25° C

T1/CEPT/ISDN-PRI

Interface Transformers

CSR1026 - CSR1034

Rev. 1

8/15/01

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

• Meets or exceeds UL1459, UL1950 & EN60950 Standards •

• 1500 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

A

B

C

D

E

F

G

H

I

J

K

L

Dim.

Min.

.800

.385

.250

---

.017

---

.310

.023

---

.140

.900

---

Max.

.790

.375

.240

.600

.015

.100

.300

.020

.200

.125

.890

.700

Nom.

(Inches)

(Millimeters)

19.81

9.27

5.84

---

.330

---

7.37

.432

---

2.79

22.35

---

Min.

20.32

9.78

6.35

---

.432

---

7.87

.584

---

3.57

22.86

---

Max.

20.07

9.52

6.10

15.24

.381

2.54

7.62

.508

5.08

3.17

22.61

17.78

Nom.

.780

.365

.230

---

.013

---

.290

.017

---

.110

.880

---

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.

Turns

Ratio

1:2CT/1:2CT

1:2CT/1:1.36

1:2CT/1:2CT

1:2CT/1:1

1:1.26/1:2CT

1:1.15CT/1:2CT

1:1CT/2CT:1

1:4CT/1:4CT

1CT:1CT/1CT:3CT

Cw/w

(pF Max.)

35 / 35

35 / 35

50 / 50

30 / 30

40 / 40

35 / 40

30 / 30

40 / 40

40 / 40

LI

(µH Max.)

0.5 / 0.5

0.5 / 0.5

0.6 / 0.6

0.5 / 0.5

0.5 / 0.4

0.5 / 0.4

0.6 / 0.6

0.5 / 0.5

0.8 / 0.8

Pri. DCR

(

Ω Max.)

0.7 / 0.7

0.8 / 0.8

1.0 / 1.0

0.7 / 0.7

0.7 / 0.7

0.7 / 0.7

0.5 / 0.5

0.7 / 0.7

1.0 / 0.8

OCL

(mH Min.)

1.2 / 1.2

1.2 / 1.2

2.0 / 2.0

1.2 / 1.2

1.5 / 1.2

1.5 / 1.2

0.8 / 0.8

0.5 / 0.5

1.2 / 0.6

Part

Number

EPR1026

EPR1027

EPR1028

EPR1029

EPR1030

EPR1031

EPR1032

EPR1033

EPR1034*

1.2 / 1.2

1.2 / 1.0

2.0 / 2.0

1.2 / 0.7

0.9 / 1.3

0.9 / 1.3

0.5 / 0.2

1.5 / 1.5

1.0 / 2.0

Sec. DCR

(

Ω Max.)

A

B

C

D

A

A

C

C

E

Schematic

A

BCD

E

1

23

7

5

14

12

10

9

8

123

7

5

14

12

10

8

123

6

5

14

12

10

8

7

123

7

5

14

13

12

10

8

123

16

15

8

7

6

5

4

11

10

9

14

Primary

Pins

14,12 / 5,7

14,12 / 5,7

14,12 /10,8

1,3 / 5,7

14,12 / 5,7

14,12 / 5,7

14,12 / 5,7

1,3 / 5,7

1,3 / 4, 6 / 7, 8

A

B

Pin 1

I.D.

PCA

EPRXXXX

Date Code

F

E

C

I

D

H

L*

K*

J

*16 Pin Dimensions

G

= * 16 Pin