ETAL P3181

PRODUCT DATA SHEET
ULTRA LOW DISTORTION MICROPROFILE
SMD LINE MATCHING TRANSFORMER
P3181
Features
Applications
∗
∗
∗
∗
∗
∗
∗
∗
∗ V.90 and V.92 (56kbps) modems
∗ Portable computers
∗ Fax/Modems
Surface Mount
Lead-free (Pb-free)
Ultra low distortion
RoHS compliant
7mm seated height
Vacuum encapsulated
IEC 60950 and UL 60950 certified
UL Recognized Component
DESCRIPTION
P3181 is an ultra-low distortion microprofile
transformer for applications where high performance
and safety isolation to international standards are
required in an extremely small case size.
Designed specifically as a surface mount device, the
P3181 features a 7mm seated height and is offered
in the same package as the now familiar P2781 and
P3081. The part is compliant with RoHS Directive
2002/95/EC, and suitable for lead-free and
conventional placement and reflow.
P3181 incorporates patented innovative features
which enable data rates of 56kbps to be
achieved.
P3181 is certified to IEC 60950 and UL 60950.
P3181 is a UL Recognized Component, and is
supported by an IEC CB Test Certificate.
Despite the subminiature size, the performance is
superior to that of much larger components. The
P3181 offers reinforced insulation, is ideal for data
communications at very high data rates, and can be
matched to both 600Ω and complex impedance
telephone lines.
Patented
ETALDOC 567/13
Page 1 of 5
October 2007
P3181
SPECIFICATIONS
Electrical
At T = 25°C and as circuit Fig. 2 unless otherwise stated.
Parameter
Conditions
Min
Typ
Max
Units
Frequency response
30Hz - 4kHz
-
-
±0.2
dB
Return Loss
200Hz - 4kHz
16
-
-
dB
Third Harmonic
(1) (3)
Distortion
150Hz -10dBm in line
-
-90
-
dBm
Balance
DC - 5kHz
Method TG25
80
-
-
dB
Voltage
(2)
Isolation
50Hz
DC
3.88
5.5
-
-
kVrms
kV
Operating range:
Functional
(4)
Storage
Humidity
Ambient temperature
-25
-40
-
-
+85
+125
95
°C
°C
%R.H.
200
220
-
250
280
Ω
Ω
-
10.8
-
mH
Lumped equivalent circuit parameters as Fig. 1
DC resistance(3), RDCP
RDCS
Pins 4-6
Pins 1-3
Leakage inductance, ΔL
Shunt inductance, Lp
10mV 200Hz
4.7
-
-
H
Shunt loss, Rp
10mV 200Hz
14
-
-
kΩ
Notes
1. Third harmonic typically exceeds other
harmonics by 10dB.
2. Components 100% tested at 6.5 kVDC.
3. Caution: Passing DC through windings will
permanently increase distortion.
Telephone line current, etc. must be diverted
using semiconductor line hold circuit.
4. Excludes shipping materials. Components are
dry packed and sealed as shipped. Handle in
accordance with IPC/JEDEC J-STD-033
procedure for components classified as
IPC/JEDEC J-STD-020 Moisture Sensitivity
Level 5a.
Equivalent Circuit
Fig. 1
½ L
R
½ L
IDEAL
1:1.1
R
Patented
ETALDOC 567/13
Page 2 of 5
October 2007
P3181
MATCHING RECOMMENDATIONS
600Ω MATCH AND DISTORTION TEST CIRCUIT
EUROPEAN CTR21 COMPLEX MATCH
Recommended Circuit
Recommended Circuit
Fig. 2
Fig. 3
1.0:1.1
600
22µF
LIN E
27nF
6
1.0:1.1
150nF
27nF
1
270
360
22µF
750
TX
1k
27nF
TX
LIN E
3
4
82nF
1
6
4
P3181
3
P3181
Note - Fig. 2:
Typical distortion: excite from line at 150Hz to yield -10dBm @ 150Hz at line terminals.
Typical THD at line terminals will then be -90dBm (i.e. -80dBc).
For signals received from the line, the signal level present between terminals 1 and 3 of the transformer will be
approximately 6dB below the signal sustained at the line terminals.
Note - Figs. 2 and 3:
As line side components (22μF, 27nF) are common to both 600Ω and complex matches, switching between
matches can be performed solely on equipment side.
When driven from a balanced (differential) TX drive with unbalanced (single-ended) high impedance recever,
the following modifications can assist in giving good transhybrid loss (typically better than 18 dB across
voiceband):
600Ω
CTR21
Fig. 4
Fig. 5
1.0:1.1
600
22µF
6
1.0:1.1
150nF
15nF
1
22µF
270
6
82nF
1
TX A1
2.2k
LIN E 15nF*
390
RX A
TX A1
750
LIN E
10k
2.2k
*
27nF
10k
TX A2
4
3
4.7nF
RX A
†
TX A2
4
P3181
1k
3
P3181
* If components on line side to be unchanged for 600Ω/CTR21, compromise on 22nF.
† 4.7nF can also be fitted on 600Ω circuit with only minor degradation.
Note - Figs. 2, 3, 4 and 5:
As P3181 transformer has a non-unity turns ratio, orientation in circuit should be observed
Patented
ETALDOC 567/13
Page 3 of 5
October 2007
P3181
CONSTRUCTION
Dimensions
2.54
(0.1)
Fig. 6
2.54
(0.1)
Connections
Fig. 7
13.0 max
(0.51)
e3
1.1:1.0
9.0 max
(0.36)
View from top
7.0 max
(0.28)
1.5
(0.06)
NOTE:
1.77
(0.07)
Toleranc e ± 0.3mm
Terminals elec troplated pure tin (Sn) 5µm minimum.
JESD95 c ategory = e3.
Terminal size : 1.5 (0.06) long, 1.32 (0.05)wide
1.32
(0.052)
Dimensions shown are in millimetres (inc hes)
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pad grid coincide within a tolerance circle of 0.3mmØ.
Observe correct orientation in circuit.
ABSOLUTE MAXIMUM RATINGS
INTELLECTUAL PROPERTY RIGHTS
(Ratings of components independent of circuit).
Short term isolation voltage (2s)
4.6 kVrms,
6.5kVDC
DC current
100μA
Storage temperature
-40°C to
+125°C
ETAL, P3181, P3081 and P2781 are Trade Marks
of Profec Technologies Ltd.
The Trade Mark ETAL is 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.
P3181 and its associated circuit embodiment are
patented.
Soldering temperature
Profile peak
260°C 10s
Recommended peak body temperature 245°C in
accordance with IPC/JEDEC J-STD-033.
British Patent No. 2283195
US Patent No. 5879598
European Patent No. 0725719 and 1082737
China patent No. ZL 99806534.X
© 1998 - 2005 Profec Technologies Ltd.
Reproduction prohibited.
Patented
ETALDOC 567/13
Page 4 of 5
October 2007
P3181
SAFETY
CERTIFICATION
Manufactured from materials conforming to
flammability requirements of UL94V-0.
Distance through reinforced insulation 0.4mm
minimum.
Creepage and clearances in circuit are 7mm
minimum where PCB pads do not exceed 3mmØ.
Construction
complies
with
IEC 60950-1,
EN 60950-1 and UL 60950-1, reinforced insulation,
250Vrms maximum working voltage.
Certified by BSI to IEC 60950 Third Edition
(1999) (IEC CB Test Certificate No. GB592W)
sub-clauses 1.5, 1.5.1, 1.5.2, 2.9, 2.9.1, 2.9.2,
2.9.3, 2.9.4, 2.9.5, 2.10, 2.10.1, 2.10.2, 2.10.3,
2.10.3.1, 2.10.3.2, 2.10.4, 2.10.5, 2.10.5.1,
2.10.7, 2.10.8, 4.7, 4.7.3, 4.7.3.1, 4.7.3.4,
(Flammability Class V-0) ,5.2, 5.2.1, and 5.2.2 for
a maximum working voltage of 250Vrms, nominal
mains supply voltage not exceeding 250Vrms
and a maximum operating temperature of +85°C
in Pollution Degree 2 environment, reinforced
insulation.
Recognized under the Component Recognition
Program of Underwriters Laboratories Inc. to US and
Canadian
requirements
CAN/CSA
C22.2
No. 60950-1-03/UL60950-1, First Edition, based on
IEC 60950-1, First Edition, maximum working
voltage 250Vrms, Pollution Degree 2, reinforced
insulation.
UL File number E203175.
Additionally, Profec Technologies certifies all
transformers as providing voltage isolation of
3.88kVrms, 5.5kV DC minimum. All shipments
are supported by a Certificate of Conformity to
current applicable safety standards.
ORDERING CODE
P3181
TR = Tape and Reel
(Blank) = Bulk in tubes.
Carrier tape width 24mm,
500 parts per 13” reel.
Patented
E203175
ETAL Group Oy, Kuormatie 14, FIN-03101, Nummela
Telephone: +358 (0)20 7500 330
Fax: +358 (0)20 7500 333
Email: etalgroup@egruppen.com
Website: www.etalgroup.com
ETALDOC 567/13
Page 5 of 5
ISO 9001
FM 25326
October 2007