SM540-1EL Bourns Inc., SM540-1EL Datasheet

Audio & Signal Transformers LINE TRANSFORMER

SM540-1EL

Manufacturer Part Number

SM540-1EL

Description

Audio & Signal Transformers LINE TRANSFORMER

Manufacturer

Bourns Inc.

Datasheet

1.SM540-1EL.pdf (1 pages)

Specifications of SM540-1EL

Isolation Voltage

1500 Volts

Operating Temperature Range

- 40 C to + 85 C

Termination Style

SMD/SMT

Dimensions

13.46 mm L x 17.65 mm W x 12.32 mm H

Product

ADSL Line Transformers

Shielding

Unshielded

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Turns Ratio (1-4):(10-7) (line to chip)

OCL @ 10 kHz, 0.1 V

Leakage Inductance @ 300 kHz 0.1 V

Longitudinal Balance

Insertion Loss

Isolation Voltage ............1500 Vrms max.

DC Resistance

THD Linearity

Application

SM540-1E* ..........................200 pcs./reel

PT541-1 ................................60 pcs./tray

*”E” suffix at end of part number

designates tape & reel packaging, e.g.

SM540-1E.

Model

Termination

Electrical Specifications @ 25 °C

How to Order

Packaging Specifications

Electrical Schematic

SM540-1 ................................1:1 ±2 %

PT541-1 ................................2:1 ±2 %

(1-4) with (2-3) shorted

SM540-1........................480 µH ±10 %

PT541-1 ........................410 µH ±10 %

(1-4) with (2-3), (7-10), (8-9) shorted

SM540-1 ........................10.0 µH max.

PT541-1 ............................6.5 µH max.

30 kHz to 1.1 MHz ............-40 dB min.

@ 100 kHz and 1.1 MHz ..........<1.0 dB

(1-4) with (2-3) shorted

SM540-1 ............................1.0 Ω max.

PT541-1 ..............................0.6 Ω max.

SM540-1 @ 10 kHz (min.) ..-72 dB typ.

PT541-1 @ 20 kHz (min.) ....-72 dB typ.

SM540-1........................................CPE

PT541-1 ..........................................CO

Blank = Tin-lead

L = Tin only (lead free)

SM540-1E or PT541-1 __

SM540-1 & PT541-1 ADSL Line Transformers

Features

Product Dimensions

For use with Alcatel’s MTK-20140

ADSL chipset

Excellent Total Harmonic Distortion

(THD) Performance

Both SMT and Thru-Hole package version

Small size

Operating temperature -40 °C to +85 °C

(.530)

13.46

MAX.

DIMENSIONS ARE:

(.028 ± .002)

.711 ± .050

(DATECODE)

10 PLCS.

SM540-1

(.024)

(.695)

(.531)

17.65

13.50

0.6

DIA.

MAX.

10 PLCS.

(INCHES)

(DATECODE)

PT541-1

Customers should verify actual device performance in their specific applications.

(.551)

14.0

(.394)

10.00

(.098)

MAX.

2.50

(.394)

10.00

12.32

(.485)

SMT

THT

MAX.

(.102)

MAX.

2.6

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

(.500)

12.70

Applications

Lead free version available (see How to

Order)

Lead free versions are RoHS compliant*

Designed to meet UL1950 and EN60950

supplementary insulation requirements

for operating voltages up to 250 Vrms

ADSL - Alcatel MTK20140

MIN.

Recommended PAD layout

MAX.

Specifications are subject to change without notice.

(.051 ± .002)

1.30 ± .050

(.100)

2.54

(.605)

(.559)

15.37

14.2

(.098)

2.50

(.394)

10.00

10 PLCS.

TOLERANCE: ±

MAX.

12.07

(.475)

MAX.

10 SURFACES

10.00

(.394)

(.010)

(.005)

0.25

0.13

(.098)

2.50

03/05

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