BOURNS SM537-1

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V SC
AV ER OM
AI SIO PL
LA N IA
BL S NT
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■ Operating temperature -40 °C to +85 °C
■ Lead free version available (see How to
Features
■ For use with Analog Device’s
Order)
AD20msp930 ADSL chipset (CO)
1
M537-
S
■ Excellent Total Harmonic Distortion
■ Lead free versions are RoHS compliant*
(THD) performance
■ SMT and small size package
■ Designed to meet UL1950 and EN60950
Applications
■ ADSL - Analog AD20msp930
supplementary insulation requirements
for operating voltages up to 250 Vrms
SM537-1 ADSL Line Transformers
Electrical Specifications @ 25 °C
Turns Ratio
(10-7):(1-4) ..........................1:1.1 ±2 %
OCL @ 10 kHz, 0.1V
(1-4) with (2-3) shorted....2.03 mH min.
(10-7) with (8-9) shorted..1.75 mH min.
Leakage Inductance @ 100 kHz 0.1 V
(10-7) with (2-3), (1-4), (8-9) shorted
..........................................7.5 µH max.
Longitudinal Balance
10 kHz to 1.1 MHz ..............50 dB min.
Insertion Loss @ 300 kHz ............<0.5 dB
Isolation Voltage ............1500 Vrms max.
Load Resistance ............................100 Ω
DC Resistance
(1-4) with (2-3) shorted......1.30 Ω max.
(10-7) with (8-9) shorted....1.50 Ω max.
THD Linearity @ 30 kHz..........-80 dB typ.
Application ..........................................CO
Electrical Schematic
Product Dimensions
Line
.711 ± .050
10 PLCS.
(.028 ± .002)
13.46
MAX.
(.530)
Chip
1
10
5
6
3
8
4
7
2
9
3
2
SM537-1
(DATECODE)
1
10.00
2.50 (.394)
(.098) MAX.
8
4
7
1.1 : 1
9
10
17.65
MAX.
(.695)
How to Order
13.50
MAX.
(.531)
SM537-1E __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
Packaging Specifications
Tape & Reel* ........................200 pcs./reel
*”E” suffix at end of part number
designates tape & reel packaging, e.g.
SM537-1E.
12.07
MAX.
(.475)
12.32
MAX.
(.485)
0.13
(.005)
10 SURFACES
2.50
(.098)
2.54
(.100)
10.00
(.394)
1.30 ± .050
(.051 ± .002)
10 PLCS.
15.37
(.605)
Recommended PAD layout
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ±
0.25
(.010)
03/05
*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.