PT731 Series - ISDN S Interface Isolation Transformer

Primary

Turns

Primary

Leakage

Pri/Sec

Part

Ratio

Inductance

Inductance

Cw/w

Pri DCR

Sec DCR

Number

(±2 %)

(mH min.)

(µH max.)

(pf max.)

(Ω±15 %)

(Ω±15 %)

Schematic

PT73173

1:1

28

12

120

2.4

2.4

A

PT73434

1:25

28

12

60

3.0

15.0*

B

13.2

(.519)

MAX.

DIA.

14.0

(.551)

MAX.

5.1

(.201)

4

PLCS.

11.4

(.448)

14.2

(.559)

MAX.

4.0

(.157)

MIN.

0.6

(.023)

45

6

12

3

14.0

(.551)

MAX.

5.1

(.200)

2

PLCS.

5.1

(.200)

2.54

(.100)

2.54

(.100)

11.4

(.448)

14.2

(.559)

MAX.

4

A

B

56

7

12

3

*Split windings in series

Features

■

Designed for isolation between line card

and terminal

■

Meets the CCITT 1.430 when chip pairs

and transformers are used

■

4000 VAC HIPOT PRI/SEC in

conformance with international safety

standards

■

Low leakage inductance

■

Weight - 4 g

■

60 dB min. longitudinal balance

10 kHz to 300 kHz

■

Operating temperature 0 °C to +70 °C

■

Lead free version available (see How to

Order)

■

Lead free versions are RoHS compliant*

Electrical Specifications @ 25 °C

Product Dimensions

Electrical Schematic

DIMENSIONS ARE:

MM

(INCHES)

Pri

1

2

3

6

5

4

Sec

A

Pri

1

2

3

7

6

5

4

Sec

B

Packaging Specifications

PT73173 ..............................50 pcs./tray,

500 pcs./carton

PT73434 ..............................38 pcs./tube

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

03/05

How to Order

PT73xxx __

Model

Termination

Blank = Tin-lead

L = Tin only (lead free)