Electrical Parameters @ 25° C

Token Ring Transformer Module

CST7071S Rev. 1

10/28/98

• Optimized for Texas Instrument’s TMS38054 •

• Supports both UTP and STP Transmission •

• Robust Construction allows for severe soldering processes •

• Isolation : 1500 Vrms •

• Complies with or exceeds IEEE 802.5 Requirements •

Schematic

Package

EPT7071S

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

Pin 1

I.D.

C

D

B

F

L

A

H

P

N

M

Q

G

PCA

EPT7071S

Date Code

Pad

Layout

(J)

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

1

8

16

15

13

12

10

9

14

DCR

(

Ω Max.)

Pri.

Sec.

Primary

OCL

(µH Min.)

@ 10 KHz,

0.1 Vrms

590

Leakage

Inductance

(µH Max.)

@ 10 MHz,

0.1 Vrms

0.7

.700

.500

K

I

11

Impedance

(

Ω)

150:150/100

Dimensions

A

B

C

D

E

F

G

H

I

(J)

K

L

M

N

P

Q

Dim.

.440

.240

.215

---

.005

---

.355

.016

.008

---

0°

.025

---

---

---

---

Min.

.460

.260

.235

---

.015

---

.375

.020

.012

---

8°

.045

---

---

---

---

Max.

Nom.

(Inches)

(Millimeters)

11.18

6.09

5.46

---

0.127

---

9.02

.406

.203

---

0°

.635

---

---

---

---

Min.

11.68

6.60

5.97

---

.381

---

9.53

.508

.305

---

8°

1.14

---

---

---

---

Max.

11.43

6.35

5.72

8.89

.254

1.27

9.27

.457

.254

1.27

---

.889

.762

1.27

2.29

10.67

Nom.

.450

.250

.225

.350

.010

.050

.365

.018

.010

.050

---

.035

.030

.050

.090

.420

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

E

Common Mode

Rejection

(dB Min.)

@ 1-100

MHz

@ 200

MHz

@ 300

MHz

-25

-15

-10

Return

Loss

(dB Min.)

@ 1-16

MHz

@ 17-24

MHz

-20

-20

CMC

Insertion

Loss

(dB Max.)

@ 1-16

MHz

-1

.450