Electrical Specifications @ 25 °C

Turns Ratio ±2 %

(1-2-3):(12-10)........................1.15 CT:1

Turns Ratio ±5 %

(4-5-6):(9-8-7) ......................1 CT:2 CT

Polarity ..1,2 & 12; 4,5,9 & 8 same phase

OCL (12-10) @ 10 kHz, 0.01 V

..........................................1.6 mH min.

OCL (4-6) @ 10 kHz, 0.1 V

..........................................1.6 mH min.

OCL (12-10) @ 10 kHz, 0.01 V, -40 °C

..........................................0.6 mH min.

OCL (4-6) @ 10 kHz, 0.01 V, -40 °C

..........................................0.6 mH min.

Le (12-10) @ 100 kHz, 0.1 V,

Short (1-2-3) ......................0.8 µH max.

Le (4-6) @ 100 kHz, 0.1 V,

Short (9-8-7) ......................0.8 µH max.

Cww (1-12) @ 100 kHz, 0.1 V

............................................60 pF max.

Cww (4-9) @ 100 kHz, 0.1 V

............................................50 pF max.

DCR (1-3) (Ω max.) ............................1.00

DCR (12-10) (Ω max.) ........................1.00

DCR (4-6) (Ω max.) ............................1.00

DCR (9-7) (Ω max.) ............................2.00

HIPOT (VAC) ....................................1500

*CT : center tap

SM75225 - T1/CEPT/ISDN-PRI Dual Transformers

Features

■

Compact surface mount packaging

■

Operating temperature -40 °C to +85 °C

■

PE68825 equivalent

■

Lead free version available (see How to

Order)

■

Lead free versions are RoHS compliant*

Applications

■

Telecom

Product Dimensions

Electrical Schematic

SM75225

DATECODE

12

1

Coplanarity:

8.63

(.340)

MAX.

2.54

(.100)

12.7

(.500)

17.14

(.675)

MAX.

.508

(.020)

TYP.

11.58

(.456)

MAX.

15.24

(.600)

MAX.

.254 - .508

(.010 - .020)

1.01 - 1.27

(.040 - .050)

.102

(.004)

NOTE: DIMENSIONS ARE EXCLUSIVE OF SOLDER

DIMENSIONS ARE:

MM

(INCHES)

TOLERANCE: ±

0.25

(.010)

1

3

12

10

4

6

9

8

2Pri

Pri

1.15 CT : 1

1 CT : 2 CT

5

7

Packaging Specifications

Tape & Reel* ........................330 pcs./reel

*“E” suffix at end of part number

designates tape & reel packaging, e.g.

SM75225E.

SM75225

YYWW

*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

SM75225E __

Model

Termination

Blank = Tin-lead

L = Tin only (lead free)