2-line filters
SIFI-L
Series/Type:
Ordering code:
Date:
Version:
Litz wires
B84811A
2006-07-24
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2-line filters
SIFI-L
B84811A
Litz wires
Preliminary data
IN FI PM
2006-07-24
©
EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information
contained therein without EPCOS’ prior express consent is prohibited.
2-line filters
SIFI-L
Preliminary data
Rated voltage 115/250 V AC, 50/60 Hz
Rated current 2 to 6A
Construction
2-line filter
Metal case
Features
Good attenuation performance to reduce
the common-mode and differential-mode
interferences
Low leakage current
For installation in instrument housing
UL approval
Applications
Switch-mode power supplies
Commercial terminals
Industrial electronics
Measuring instruments
B84811A
Litz wires
Terminals
Litz wire
Marking
Marking on component:
Manufacturer’s logo, ordering code
rated voltage, rated current, date code
Minimum marking on packaging:
Manufacturer’s logo, ordering code
IN FI PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 6
2006-07-24
2-line filters
SIFI-L
Preliminary data
Typical circuit diagram
B84811A
Litz wires
LINE
L
G
N
C
x1
L1
C
y1
LOAD
L’
G’
C
y2
N’
L2
Technical data and measuring conditions
Rated voltage V
R
Rated current I
R
Test voltage V
test
Leakage current I
leak
Climatic category
115/250 V AC, 50/60 Hz
Referred to 40°C ambient temperature
1768 V DC, 1 min (line/line)
2000 V AC, 1 min (lines/case)
<0.30 mA (at 250 V AC, 50 Hz)
To EN 60068-1
25/085/21 (–25°C/+ 85°C/21 days damp heat test)
Characteristics and ordering codes
I
R
A
2
3
6
C
R
0.1 µF (X2) +
2 × 2200 pF(Y2)
0.1 µF (X2) +
2 × 2200 pF (Y2)
0.1 µF (X2) +
2 × 2200 pF (Y2)
L
R
mH
2 × 2.45
2 × 1.8
2 × 0.5
Ordering code
Approvals
B84811A0002L001
B84811A0003L001
B84811A0006L003
x
x
x
x = approval granted
IN FI PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 6
2006-07-24
2-line filters
SIFI-L
Preliminary data
Cautions and warnings
B84811A
Litz wires
Please note the advices in our data book “EMC filters” (latest edition); attention should be paid to
the chapter “General safety notes”.
It shall be ensured that only qualified persons (electricity specialists) are engaged on work such as
planning, assembly, installation, operation, repair and maintenance. They must be provided with
the corresponding documentation.
Danger of electric shock. EMC filters contain components that store an electric charge. Dangerous
voltages can continue to exist at the filter terminals for longer than five minutes even after the
power has been switched off.
The protective earth connections shall be the first to be made when the EMC filter is installed and
the last to be disconnected. Depending on the magnitude of the leakage currents, the particular
specifications for making the protective-earth connection must be observed.
Impermissible overloading of the EMC filter, such as with circuits able to cause resonances,
impermissible voltages at higher frequencies etc. can lead to bodily injury and death as well as
cause substantial material damages (e. g. destruction of the filter housing).
EMC filters must be protected in the application against impermissible exceeding of the rated
currents by overcurrent protective.
In case of leakage current >3.5 A you shall mount the PE conductor stationary with the required
cross section before beginning of operation and save it against diconnecting. For leakage currents
I
L3)
<10 mA the PE conductor must have a KU value
4)
of 4.5, for leakage currents I
L
≥10
mA the PE
conductor must have a KU value of 6.
3) I
L
= leakage current let-go
4) The KU value (symbol KU) is a classification parameter of safety-referred failure types designed to ensure protection
against hazardous body currents and excessive heating.
A value of KU = 4.5 with respect to interruptions is attained:
2
- with a permanently connected protective earth circuit
≥1.5
mm
2
- with a protective earth circuit
≥2.5
mm connected via shroud connectors (IEC 60309-2).
2
KU = 6 with respect to interruptions is achieved for fixed-connection lines
≥10
mm where the type of connection and line
layout correspond to the requirements for PEN conductors as specified in relevant standards.
IN FI PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 6
2006-07-24
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