ETALDOC 129/9
Page 1 of 4
January 2001
PRODUCT DATA SHEET
PICK-OFF TRANSFORMER
P2152
Features
Applications
∗
12.6mm (0.5") seated height
∗
Telecommunications
∗
Vacuum encapsulated
∗
Pick-off applications
∗
IEC 950, UL 1950 and EN 60950 certified
∗
Calling Line Identification
∗
UL Recognized Component
∗
Instrumentation
∗
BABT Certificate of Recognition
∗
Voice Recording
∗
CSA NRTL/C Certificate of Compliance
DESCRIPTION
P2152 is a high impedance transformer for
applications where high performance and safety
isolation are required in a compact case size.
P2152 has a turns ratio of 1.732:1 giving an
impedance transformation of 3:1.
P2152 is designed for “listening” applications when
placed across a line, presenting a very high
impedance (>50kÙ) to minimize circuit loading.
P2152 is certified to IEC 950, EN 60950, UL1950
and EN 41003. P2152 is a UL Recognized
Component and is supported by a BABT
Certificate of Recognition, a CSA Certificate of
Compliance and an IEC CB Test Certificate.
E203175
to Electronic Techniques
(Anglia) Limited
P2152
ETALDOC 129/9
Page 2 of 4
January 2001
SPECIFICATIONS
Electrical
At T = 25ºC unless otherwise stated.
Parameter
Conditions
Min
Typ
Max
Units
Voltage
isolation
(1)
50Hz
DC
3.88
5.5
-
-
-
-
kVrms
kV
Balance
DC – 5kHz
Method TG25
50
-
-
dB
Input impedance
200Hz – 4kHz, Fig 2
50
-
-
k
Ω
Operating range:
Functional
Storage
Humidity
Ambient temperature
-10
-40
-
-
-
-
+70
+125
95
ºC
ºC
%R.H.
Lumped equivalent circuit parameters as Fig. 1
DC resistance, R
DC
(2)
Sum of windings
(Corrected for ratio)
2300
-
2800
Ω
Leakage inductance
∆
L
Refered to pins 1-3
310
-
350
mH
Shunt inductance Lp
-43dBm 200Hz
60
-
112
H
Shunt loss Rp
-43dBm 200Hz
85
-
120
k
Ω
Self Capacitance
C
1
C
2
7
13
-
-
10
18
pF
pF
Notes
1. Components are 100% tested at 6.5kV DC.
2. Caution: do not pass DC through windings.
Telephone line current, etc. must be diverted
using choke or semiconductor line hold
circuit.
P2152
ETALDOC 129/9
Page 3 of 4
January 2001
CONSTRUCTION
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mm
Recommended Circuit
F i g 2
Through "loss" (including voltage ratio) 7.3dB = 0dB reference
Response: 0.4dB 200Hz - 4kHz
Impedance: Z
in minimum at 200Hz >50k
±
Ω
Equivalent Circuit
LINE
F i g 1
P2152
ETALDOC 129/9
Page 4 of 4
January 2001
SAFETY
CERTIFICATION
Constructed in accordance with IEC 950:1991,
EN60950:1992 (BS7002:1992) to amendment 5,
supplementary insulation, and UL 1950 3rd Edition,
reinforced insulation, 250Vrms maximum working
voltage, flammability class V-0.
Distances through solid insulation 0.4mm
minimum.
Certified under the IEC CB scheme (Certificate
GB442W) to IEC 950:1991, up to amendment 4, sub-
clauses 1.5, 1.5.1, 1.5.3, 2.2, 2.2.2, 2.2.3, 2.2.4, 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 2 environments, supplementary insulation.
Recognized under the Component Recognition
Program of Underwriters Laboratories Inc. to US and
Canadian requirements CAN/CSA C22.2
No. 950-95/UL1950, Third Edition, including revisions
through to revision date March 1, 1998, based on
Fourth Amendment of IEC 950, Second Edition,
maximum working voltage 250Vrms, Pollution Degree
2, reinforced insulation.
UL File number E203175.
CSA Certificate of Compliance 1107696 (Master
Contract 1188107).
Approved and certified by BABT to EN 60950 and
EN 41003.
BABT Certificate of Recognition CR/0136.
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.
ABSOLUTE MAXIMUM RATINGS
COPYRIGHT
(Ratings of components independent of circuit).
Short term isolation voltage (15s)
DC current
Storage temperature
Lead temperature, 10s
4.6kVrms,
6.5kV DC
100
µ
A
-40ºC to
+125ºC
260ºC
ETAL and P2152 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.
© 1996, 2000 Profec Technologies Ltd.
Reproduction prohibited.
T R A N S F O R M I N G T H E F U T U R E
Profec Technologies Ltd., 10 Betts Avenue, Martlesham Heath, Ipswich, IP5 3RH, England
Telephone: +44 (0) 1473 611422
Fax: +44 (0) 1473 611919
Websites: www.etal.ltd.uk
www.profec.com
Email:
info@etal.ltd.uk
sales@profec.com
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FM 25326