ETAL P2883

PRODUCT DATA SHEET
P2883
ADSL TRANSFORMER
Features
Applications
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∗ ADSL
Ultra-low profile, 7mm
IEC 950 certified
Supplementary Insulation
Lead-free (Pb-free)
RoHS compliant
Excellent frequency characteristics
Low distortion
Use as 1:1 or 2:1 ratio
Vacuum encapsulated
DESCRIPTION
P2883 is a microprofile transformer for ADSL
applications
requiring
safety
isolation
to
international standards.
P2883 is certified to safety standards IEC 950 for
supplementary insulation, 250V working voltage.
The ADSL requirements for good balance and
frequency response, with low levels of distortion
are achieved in a miniature package with a high
level of safety insulation.
The part is compliant with RoHS Directive
2002/95/EC, and suitable for lead-free and
conventional processing.
ETALDOC 720/9
Page 1 of 4
August 2007
P2883
SPECIFICATIONS
Electrical
At T = 25ºC and reference circuit Fig. 1 unless otherwise stated. The convention used in this datasheet is that
'primary' windings are on the line side and 'secondary' windings are on the equipment side.
Parameter
Conditions
Min
Typ
Max
Units
Turns ratio
(3-5)+(4-6):(2-1)
0.98
1.00
1.02
Primary inductance
3-6, 30kHz, 1V
25
40
-
mH
DC resistance
3-5 and 4-6
1-2
-
1.8
1.2
-
Ω
Ω
Interwinding
capacitance
1 & 2 linked:
3, 4, 5, 6 linked
-
30
-
pF
Leakage inductance
3-6 (1-2 shorted)
-
5
12
µH
Insertion loss
500kHz
-
0.25
-
dB
Frequency response
30kHz - 1.1MHz
-
±0.1
-
dB
Phase response
30kHz - 1.1MHz
-
±5
-
degrees
Longitudinal balance
30kHz - 1.1MHz
40
-
-
dB
Return loss
30kHz - 500kHz
500kHz - 1.1MHz
1.1MHz - 2MHz
20
14
10
18
14
-
dB
dB
dB
Total Harmonic
Distortion
4Vrms
30kHz - 1.1MHz
-
-
-80
dBc
Voltage isolation
50Hz
DC
2.12
3.0
-
-
kVrms
kV
Operating range:
Functional
Storage
Ambient temperature
0
-40
-
+70
+125
ºC
ºC
50
1
100
6
4
0.1µF
LINE
5
50
2
ETALDOC 720/9
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Page 2 of 4
August 2007
P2883
Notes:
1. The 0.1µF capacitor is fitted to block DC. It may be placed, as an alternative, in either leg of the line pair.
2. If desired, the transformer may be reversed so that the split winding is on the equipment side.
3. To effect a 1:2 step up to line, connect as shown in Fig. 2. The ratio between the two halves of the split
winding is exactly 1.00:1.00 by design, and paralleling the windings is thus always acceptable.
12
6
1
100
0.1µF
4
LINE
5
12
3
2
CONSTRUCTION
Fig 3 Mechanical Specification
e3
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pin grid
coincide within a tolerance circle of Ø0.6mm.
Recommended PCB hole size Ø0.8mm.
Terminal pins electroplated pure tin (Sn) 5µm
minimum, JESD97 Category = e3.
ETALDOC 720/9
Page 3 of 4
August 2007
P2883
SAFETY
ABSOLUTE MAXIMUM RATINGS
Constructed in accordance with IEC 950:1991,
supplementary insulation, 250Vrms working.
CERTIFICATION
(Ratings of components independent of circuit).
Short term isolation voltage (1s)
2.12kVrms
3.0kVDC
Storage temperature
-40ºC to
+125ºC
Lead temperature, 10s
260ºC
COPYRIGHT
Certified to IEC 950:1991/A4:1996 (IEC CB Test
Certificate No. GB541W) sub-clauses 2.2.2, 2.9.2,
2.9.3, 2.9.4, 2.9.6, 2.9.7, 4.4, 4.4.3.2 (class V-0)
and 5.3 for a maximum working voltage of
250Vrms, nominal mains supply voltage not
exceeding 300Vrms and a maximum operating
temperature of +70ºC in Pollution Degree 3
environment, supplementary insulation.
Additionally, Profec Technologies certifies all
transformers as providing voltage isolation of
2.12kVrms, 3kV DC minimum. All shipments are
supported by a Certificate of Conformity to current
applicable safety standards.
ETAL and P2883 are Trade Marks of Profec
Technologies Ltd.
The Trade Mark and Service Mark ETAL are
registered at the UK Trade Marks Registry.
Profec Technologies Ltd. is the owner of the
design right under the Copyright Designs and
Patents Act 1988 and no rights or licences are
hereby granted or implied to any third party.
© 1999 and 2007 Profec Technologies Ltd.
Reproduction prohibited.
ETAL Group Oy, Kuormatie 14, FIN-03101, Nummela
Telephone: +358 (0)20 7500 330
Fax: +358 (0)20 7500 333
Website: www.etalgroup.com
Email: etalgroup@egruppen.com
ETALDOC 720/9
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August 2007