
PT542-1 to SM547-1 ADSL & RADSL Transformers
Features
■
For use with Globespan ADSL chipset
■
Excellent Total Harmonic Distortion
(THD) Performance
■
Exceeds standards for ANSI and ETSI
■
Isolation voltages up to 2000 Vrms
■
Designed to meet UL1950 and EN60950
supplementary insulation requirements
for operating voltages up to 250 Vrms
■
Operating temperature -40 °C to +85 °C
■
Lead free version available (see How to
Order)
■
Lead free versions are RoHS compliant*
Applications
■
ADSL - Globespan
Electrical Specifications @ 25
°
C
Turns
Ratio
Chip-Line
(
±
2 %)
OCL Primary
(1-4) with
(2-3) shorted
(
μ
H –10 %)
DCR @
(1-3), (2-4),
(10-8), (9-7)
(
max.)
Leakage
Inductance
(
μ
H max.)
Isolation
Voltage
(Vrms)
Insertion
Loss
(dB max.)
Longitudinal
Balance
(dB typ.)
Part
Number
Package
PT542-1
1.4:1.4:1:1
940
10
1.2
1500
3
62
THT
PT543-1
1:1:1:1
410
10
0.8
1500
3
62
THT
PT544-1
1.4:1.4:1:1
940
10
1.2
3000
3
62
THT
PT545-1
1:1:1:1
410
10
0.8
3000
3
62
THT
SM546-1
1.4:1.4:1:1
940
10
1.2
3000
3
62
SMT
SM547-1
1:1:1:1
410
10
0.8
3000
3
62
SMT
Product Dimensions
DATE CODE
DATE CODE
19.05
(.750)
22.86
(.900)
27.05
(1.065)
3.81
(.150)
4.83
(.190)
23.24
(.915)
24.13
(.950)
1.78
(.070)
8 PLCS.
3.81
(.150)
8 PLCS.
MAX.
26.67
(1.05)
MAX.
MIN.
3.3
(.130)
12.70
(.500)
MAX.
1.07
(.042)
X
0.38
(.015)
20.32
(.800)
TYP.
3.81
(.150)
TYP.
24.13
(.950)
MAX.
12.70
(.500)
MAX.
0.97
(.038)
10 PLCS.
3.56
(.140)
10 PLCS.
Recommended PAD layout
SMT
THT
0.10
(.004)
10 SURFACES
10
7
1
4
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ±
0.25
(.010)
Electrical Schematic
10
8
9
7
1
3
2
4
PT5421
Packaging Specifications
Tube ....................................35 pcs./tube
*RHAVALABE
VRSONS
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.
How to Order
PT or SM5xx-1 __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)