FN660-16-10 Schaffner EMC Inc, FN660-16-10 Datasheet - Page 8

• Manufacturer Part Number: FN660-16-10
• Description: FILTER 2-STAGE GENERAL 16A
• Manufacturer: Schaffner EMC Inc
• Series: FN 660r

Specifications of FN660-16-10

• Filter Type: Power Line
• Voltage - Rated: 250V
• Current: 16A
• Inductance: 440µH
• Mounting Type: Chassis Mount
• Termination Style: Stud Lug
• Current Rating: 16A
• Voltage Rating: 250V
• Leakage Current Max: 190µA
• Capacitance: 0.15µF
• Inductance Min: 440µH
• Termination Type: Screw
• Mounting Style: Chassis
• Filtered: Yes
• Frequency: DC to 400 Hz
• Leakage Current: 190 uA
• Product: Power Line Filters
• Filter Terminals: Screw
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 282-355; 817-1222; FN 660 -16 /10

Flammability class All filters in this
catalogue are UL 94V2 or UL94V0.
MTBF figures In addition to safety
approvals, Schaffner filters also have the
high reliability shown in the MTBF (mean
time between failure) values given for each
filter family. This is the lowest typical value
for any filter in the particular family and is
calculated according to Mil-HB 217-F, for
maximum rated current and voltage in an
ambient temperature of 40°C. MTBF is
stated in hours.
Components The component values
given in the detailed product pages are
nominal. The value of inductors and
capacitors can vary from this nominal
value. The tolerance and test conditions
for these components is shown in the
following table:
Parameter
Inductance
Capacitance
Resistance
Climatic classification Schaffner filters
fulfil the requirements of the HPF climatic
classification according to DIN 40040
(ambient temperature -25 to +85°C).
Filters with a connecting cable - such as
types FN 0.8 to FN 20 meet the
requirements of the HSF climatic
classification (ambient temperature
-25 to +70°C).
The letters of the climatic classification are
coded as follows:
1st letter: Lower temperature limit:
2nd letter: Upper temperature limit:
3rd letter: Permissible humidity (relative):
According DIN IEC 68 Part 1, the climatic
category is given by three numbers,
separated by /
Sample:
1st number: Lower temperature limit:
2nd number: Upper temperature limit:
H
S
F
95% highest value for 30 days
85% highest for all other days
25/085/21
-25°C
+85°C
75% yearly average
+70°C
-25°C
- Tol.
30%
20%
10%
+ Tol.
50%
20%
10%
P
+85°C
Test
1kHz
1kHz
DC
3rd number: Humidity, 90-95% R.H.
Filters with a greater temperature range,
for special applications and for military
use, are available on request.
Filters with earth line chokes
It is possible to get interference induced
on all cables of a system simultaneously.
In this case the same noise will also be
induced onto the earth cable. A standard
filter will reduce the noise on the phase
lines but not on the earth. The noise on the
earth line will then be able to enter the
equipment and may cause the equipment
to malfunction. To reduce this interference
earth line chokes may be fitted or
incorporated into the filter. The earth line
choke will also provide extra attenuation
for normal common mode currents.
Care must be taken not to bypass earth
line chokes in systems. For example a PC
may have a filter with an earth line choke
fitted, if this PC is connected to a printer
that is powered from the mains supply,
and if the printer does not have an earth
line choke, the noise may find a path from
the mains into the printer and along the
data cable into the PC bypassing the earth
line choke in the PC.
Filters for medical equipment
For enhanced safety in medical
applications, Schaffner offers ‘B’ versions
of many of its filters, offering lower
leakage current (3 A typical), a discharge
resistor, and higher potential test values
(for example FN 326B).
Special filters for NEMP
A nuclear electro-magnetic pulse (NEMP)
is a high intensity, short duration, electro-
magnetic field produced as a result of a
nuclear explosion outside the atmosphere
(exo-atmospheric). The most critical threat
for technically highly developed nations is
an exo-atmospheric burst (at an altitude of
more than 40 km) producing a NEMP
inducing in antennas, power transmission
networks etc, such high voltages and
currents that it may leave a whole
continent without power, telephone or
radio communications. Electronic
equipment can be protected against a
NEMP if it is placed in special room or
housing which screen it from the electro-
21 days
magnetic fields, and if all feed lines to
these areas are protected with voltage
limiting devices such as varistors, gas
discharge tubes and suppressor diodes.
Special filters for TEMPEST
Telecommunication or data processing
equipment can radiate signals, or
propagate them along power lines,
providing a mechanism for unauthorised
persons to access classified information.
The study and blocking of such sensitive
signals is known as TEMPEST. Mains
filters with high attenuation over a large
frequency range are necessary. An
optimum filter solution can only be found
by an exact specification of requirements.
The FN 700Z filter series has been used in
many TEMPEST applications. Other
suitable filters are available on request.
Customer-specific filters
Schaffner’s standard range of filters
cover the majority of customers’
requirements. But depending on the
application, specific criteria might need to
be considered. With our many years of
experience, as well as the flexibility and
capability of our five development centers
located throughout the world, Schaffner
can offer companies an efficient and
reliable custom engineering service. To
date, Schaffner has produced over 4000
custom filters, ranging from 0.1 amps up
to 1200 amps, from a matchbox size to
rack mount designs, with up to 23 input
connections, used in all forms of
environments from offices to submarines
to factories to military armoured vehicles.
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