ETAL P3190

PRODUCT DATA SHEET
P3190
MICROPROFILE PICK-OFF
TRANSFORMER
Features
Applications
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Surface Mount
Lead-free (Pb-free)
RoHS compliant
7mm seated height
Vacuum encapsulated
IEC 60950 and UL 60950 Certified
UL Recognized Component
Telecommunications
Pick-off applications
Voice recording
Instrumentation
DESCRIPTION
P3190 is a high impedance microprofile transformer
for applications where safety isolation to
international standards is required in an extremely
small case size.
P3190 is designed for "listening" applications
when placed across a line, presenting a high
impedance exceeding 10kΩ across the voiceband
to minimize circuit loading.
Designed specifically as a surface mount device,
P3190 features a 7mm seated height. The part is
compliant with RoHS Directive 2002/95/EC, and
suitable for lead-free and conventional placement
and reflow.
For applications requiring higher impedance,
P2769 offers >30kΩ in a compatible package.
To meet requirements for ≥40kΩ across the
voiceband, P3190 can be used in an application
circuit described herein.
P3190 is certified to IEC 60950 and UL 60950.
P3190 is a UL Recognized Component and is
supported by an IEC CB Test Certificate.
ETALDOC 725/12
Page 1 of 5
October 2007
P3190
SPECIFICATIONS
Electrical
At T = 25°C unless otherwise stated.
Parameter
Conditions
Min
Typ
Max
Units
Voltage (1)
isolation
50Hz
DC
3.88
5.5
-
-
kVrms
kV
Input impedance(4)
300Hz - 3.4kHz, 1Vrms,
circuit as Fig.2.
10
-
-
kΩ
Operating range:
Functional
Storage(3)
Humidity
Ambient temperature
-25
–40
-
-
+85
+125
95
°C
°C
%R.H.
882
-
1055
Ω
18
-
22
mH
Lumped equivalent circuit parameters as Fig. 1
DC resistance, RDC(2)
Sum of windings
Leakage
inductance ΔL
Shunt
inductance Lp
200Hz 10mV
6.5
-
16
H
Shunt loss Rp
200Hz 10mV
22
-
66
kΩ
Notes
1. Components are 100% tested at 6.5 kVDC.
2. Caution: do not pass DC through windings.
Telephone line current, etc. must be diverted
using choke or semiconductor line hold circuit.
3. 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.
4. For applications requiring higher input
impedance (e.g. ≥40kΩ), see application
circuits below.
ETALDOC 725/12
Page 2 of 5
Equivalent Circuit
Fig. 1
½ L ½R
½R
½ L
IDEAL
1:1
October 2007
P3190
Reference Circuit
In practice, the 47kΩ load can be increased
without limit. The DC blocking capacitor should
be maintained within the range 0.22µF to 0.33µF
to obtain a flat frequency response and input
impedance to specification.
Fig 2
0.27µF
47k
Zin
40kΩ APPLICATION CIRCUITS
For applications requiring impedance greater than 40kΩ for parallel-connected Terminal Equipment
(e.g. ETSI TS 103 021, ≥40kΩ, 200Hz – 4.3kHz) the following circuits may be helpful.
At the expense of a small loss, the circuit in
Fig. 3 provides an impedance exceeding 40kΩ
from DC upwards.
Fig 3
39k
47n
270k
P3190
Zin > 40kΩ
Due to the finite primary inductance of the
P3190, the circuit of Fig. 3 suffers from low
frequency rolloff below 500Hz. At the expense of
around 6dBV loss, the circuit of Fig. 4 provides a
relatively flat response from 300Hz to 4kHz.
Fig 4
39k
68n
6.8n
39k
RLoad Vout
The load resistance, RLoad, across which the
output voltage appears, should be a minimum of
470kΩ, and can be increased without limit.
P3190
Zin > 40kΩ
ETALDOC 725/12
Page 3 of 5
October 2007
P3190
CONSTRUCTION
Dimensions
2.54 2.54
Fig 5
(0.1) (0.1)
Connections
Fig 6
13.0 max
(0.51)
e3
9.0 max
(0.36)
7.0 max
(0.28)
1.5
(0.06)
NOTE:
1
6
2
5
3
4
1.77
(0.07)
1.32
(0.052)
Tolerance ± 0.3mm
Terminals electroplated pure tin (Sn) 5µm minimum.
JESD97 c ategory = e3.
Terminal size : 1.5 (0.06) long, 1.32 (0.05) wide
Dimensions shown are in millimetres (inches)
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pad grid coincide within a tolerance circle of 0.3mm∅.
Windings may be used interchangeably as primary or secondary.
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
ABSOLUTE MAXIMUM RATINGS
(Ratings of components independent of circuit).
Short term isolation voltage (2s)
DC current
Storage temperature
4.6 kVrms,
6.5kVDC
100μA
-40°C to
+125°C
Soldering temperature
Profile peak
260°C 10s
Recommended peak body temperature 245°C in
accordance with IPC/JEDEC J-STD-033.
ETALDOC 725/12
Page 4 of 5
Certified by BSI to IEC 60950 Third Edition (1999)
(IEC CB Test Certificate No. GB592W) subclauses 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.
October 2007
P3190
ORDERING CODE
COPYRIGHT
ETAL, P3190 and P2769 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.
P3190
TR = Tape and Reel
(Blank) = Bulk in tubes.
Carrier tape width 24mm,
500 parts per 13” reel.
British Patent No. 2283195
US Patent No. 5879598
European Patent No. 0725719
© 1999 - 2007 Profec Technologies Ltd.
Reproduction prohibited.
E203175
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 725/12
Page 5 of 5
ISO 9001
FM 25326
October 2007