P3335 [ETAL]
LOW DISTORTION LINE MATCHING TRANSFORMER; 低失真线路匹配变压器
| 型号： | P3335 |
| 厂家： | 
ETAL Group |
| 描述： | LOW DISTORTION LINE MATCHING TRANSFORMER |
| 文件： | 总5页 (文件大小：169K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRODUCT DATA SHEET
LOW DISTORTION
LINE MATCHING TRANSFORMER
P3335
Features
Applications
∗ Lead-free (Pb-free)
∗ RoHS compliant
∗ V.90 and V.92 Modems
∗ V.34 Modems
∗ Low Distortion
∗ 12.6mm (0.5”) Seated Height
∗ Industry Standard Pinout
∗ IEC 60950 and UL 60950 Certified
∗ UL Recognized Component
∗ Environmentally tested to IEC 68
∗ CERT reliability tested
∗ Excellent Frequency Response
∗ Simple Matching
∗ Low Insertion Loss
∗ High Thermal Stability
∗ Directly replaces 9035
DESCRIPTION
P3335 is intended for V.90 and V.92 (56kbps)
modems and other high-speed applications where
ultra-low distortion at moderate power levels and
very low voiceband frequencies is required at a
most competitive price.
P3335 uses patented design and construction
methods to achieve excellent signal performance
and safety isolation to international standards.
P3335 is certified to IEC 60950 and UL 60950.
P3335 is a UL Recognized Component and is
supported by an IEC CB Test Certificate. The
part is completely lead-free, compliant with RoHS
Directive 2002/95/EC, and suitable for lead-free
and conventional processing.
P3335 is offered as a direct replacement for 9035
in existing circuits, without changes to matching
components, but re-engineered for significantly
improved thermal stability.
P3335 has been subjected to relevant
environmental testing according to IEC 68 and
Combined Environmental Reliability Testing
(CERT) beyond normal operational levels and
passed all tests, remaining fully functional.
P3335 has exceptionally flat frequency response
from 30Hz to 10kHz, a 3dB bandwidth of over
50kHz and requires only the very simplest of
matching to achieve good return loss and
transhybrid loss across the voiceband, with very
low levels of signal distortion at signal frequencies
as low as 150Hz.
FOR NEW DESIGNS
Patented
P3356 IS RECOMMENDED
ETALDOC 703/9
Page 1 of 5
April 2005
P3335
SPECIFICATIONS
Electrical
At T = 25ºC and as reference circuit Fig. 2 unless otherwise stated.
Parameter
Conditions
Min
Typ
1.4
Max
Units
dB
Insertion Loss
-
-
f = 2kHz, RL = 600Ω
Frequency Response
LF -3dB cutoff
HF -3dB cutoff
100Hz – 4kHz
-
-
-
10
55
-
-
Hz
kHz
dB
±0.1
Return Loss
200Hz – 4kHz
25
30
-
dB
Third Harmonic
Distortion(1)
150Hz -3dBm in line
200Hz -3dBm in line
-
-
-76
-80
-
-
dBm
dBm
Voltage Isolation(2)
50Hz
DC
2.12
3.0
-
-
-
-
kVrms
kV
Operating Range:
Functional
Storage
0
-40
-
-
+70
+85
ºC
ºC
Lumped equivalent circuit parameters as Fig. 1
(3)
DC resistance, RDC
Primary resistance
RDCP
66
90
-
-
80
Ω
Secondary resistance
RDCS
110
Ω
mH
H
2.1
5
2.9
12
15
3.6
Leakage inductance, ΔL
Shunt inductance, Lp
Shunt loss, Rp
200Hz 0.25V
200Hz 0.25V
-
-
10
kΩ
Notes:
Equivalent Circuit
Fig . 1
1. Third harmonic typically exceeds other
harmonics by 10dB.
2. Components are 100% tested at 3.25kVDC.
3. Caution: do not pass DC through windings.
Telephone line current must be diverted using
semiconductor line hold circuit or choke.
IDEAL
1:1
½
L
½
L
R
R
Patented
ETALDOC 703/9
Page 2 of 5
April 2005
P3335
Ω
600 Reference Circuit
Fig . 2
600
22μF
470
TXA1
TXA2
LINE
6.8nF
CONSTRUCTION
Dimensions
Connections
e
2
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mmØ.
Windings may be used interchangeably as primary or secondary.
Total weight typically 7.4g.
ETALDOC 703/9
Page 3 of 5
April 2005
P3335
ENVIRONMENTAL TESTING
Reliability testing to IEC 68
Tested to clauses of IEC 68 and compliant with all functional and safety requirements following exposure as follows:
Test description IEC 68 reference
Test details
Result
Robustness of 68-2-21 Test Ua1
Tensile 5N pull
Thrust 1N push
No impairment
No pin detachment or distortion
terminations
Solderability
68-2-21 Test Ua2
68-2-20 Test Ta Method 1 Solder bath 235ºC 2s
No impairment
Finish smooth, bright and even
Resistance to
soldering heat
68-2-20 Test Tb Method 1A Solder bath 260ºC 10s
68-2-20 Test Tb Method 2 Soldering iron 350ºC 5s
Vibration
68-2-6 Test Fc
Sweep 10-55-10Hz in 1 minute
Amplitude 1.5mm pk-pk
Duration 2h per axis, 3 axes
No impairment
No impairment
Shock
68-2-27 Test Ea
Peak acceleration 1000m/s2
Duration of pulse 6ms
3 shocks each direction on 3 axes
Cold
68-2-1 Test Ab
68-2-2 Test Bb
68-2-3 Test Ca
68-2-14 Test Na
-25ºC 16h
Recovery to ambient 1-2h
No impairment
No impairment
No impairment
No impairment
Dry heat
Damp heat
125ºC 16h
Recovery to ambient 1-2h
40ºC 4 days, RH 93%
Recovery to ambient 1-2h
Change of
TA –25ºC
temperature
TB +85ºC
t1 30 min
2 min ≤t2≤3 min
Recovery to ambient 1-2h
5 cycles
Combined Environmental Reliability Testing (CERT)
Components step stressed at increasing levels of severity using combined stresses to detect potential
weaknesses.
Results are shown for highest levels of stress tested. Compliant with all functional and safety tests following
exposure as follows:
Test description
Test details
Duration
Result
Storage Test
Thermal cycling -30ºC to +100ºC at
11ºC/min
20 mins per
plane
No impairment
6mm pk 2-9Hz at 1 octave/min
20m/s2 9-200Hz
Transportation Test Thermal cycling -65ºC to +80ºC
Random vibration 10-200Hz and
2 hours per
plane
No impairment
200-2000Hz at 57m/s2 RMS
ETALDOC 703/9
Page 4 of 5
April 2005
P3335
SAFETY
ABSOLUTE MAXIMUM RATINGS
Constructed in accordance with IEC 60950-1,
EN 60950-1 and UL 60950-1, supplementary
insulation, 250Vrms maximum working voltage,
flammability class V-0.
(Ratings of components independent of circuit).
Short term isolation voltage (1s)
2.12kVrms,
3.0 kVDC
100μA
-40ºC to
+85ºC
DC current
Storage temperature
There are no special installation requirements
(beyond attending to usual PCB track separations)
since the integral cover provides supplementary
insulation from its external faces to internal core
and windings.
Lead temperature, 10s
260ºC
CERTIFICATION
INTELLECTUAL PROPERTY RIGHTS
Certified under the IEC CB scheme (Certificate
DK-8570) to IEC 60950-1-2001, sub-clauses 1.5,
1.5.1, 1.5.2, 1.7.1, 2.9, 2.9.1, 2.9.2, 2.9.3, 2.10, 2.10.1,
2.10.2, 2.10.3, 2.10.3.1, 2.10.3.3, 2.10.4, 2.10.5,
2.10.5.1, 2.10.5.2, 2.10.5.4, 4.7, 4.7.1 (classV-1), 4.7.3,
4.7.3.1, 4.7.3.4, 5.2, 5.2.1, 5.2.2, 6.1.2.1 (Finland,
Norway, Sweden national deviations) 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.
ETAL and P3335 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.
P3335 design and construction are protected by
patents and registered design.
Recognized under the Component Recognition
Program of Underwriters Laboratories Inc. to US and
British Patent No. 2333646.
USA Patent Nos. 6, 344, 787; 6,690,254
European Patent No. 1082734
Canadian
requirements
CAN/CSA
C22.2
No. 60950-1-03/UL60950-1, First Edition, based on
IEC 60950-1, First Edition, maximum working voltage
180Vrms (creepage), 420V peak (clearance), Pollution
Degree 2, supplementary insulation.
China Patent No. ZL 99806739.3
UK Registered Design No. 2077360.
French Registered Design No. 991512.
United States Registered Design 426, 815.
Mexico Registered Design 12143
UL File number E203175.
Other patents and registered designs pending.
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.
© 1998 - 2005 Profec Technologies Ltd.
Reproduction prohibited.
E203175
ISO 9001
FM 25326
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 703/9
Page 5 of 5
April 2005
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