FMCE-1528 Datasheet, PDF (1/13 Pages) Interpoint Corporation Company – Attenuation to 70 dB at 500 kHz, typical Transient rating -0.5 to 80 V for 1 second

Crane Aerospace & Electronics Power Solutions
FMCE-1528 EMI Input Filters
28 Volt Input – 15 Amp
Features
Attenuation to 70 dB at 500 kHz, typical
• Operating temperature -55° to +125°C
• Nominal 28 V input, -0.5 to 50 V operation
• Transient rating -0.5 to 80 V for 1 second
• Up to 15 A throughput current over the
full input voltage range of -0.5 to 50 V
• Compliant to
-- MIL-STD-461C,CE03
-- MIL-STD-461D, E and F CE102
-- MIL-STD-461C CS01
-- MIL-STD-461D, E and F CS101
• Compatible with MIL-STD-704 A-E 28 VDC power bus
Input Voltage
and Current
Input (V)
28
Current (A)
15
Description
The FMCE-1528™ EMI filters are specifically designed to reduce
the reflected input ripple current of Interpoint’s high frequency
DC/DC converters. FMCE-1528 filters minimize electromagnetic
interference (EMI) for the MFL, MOR, MTR, MHV, and MHF+
Series of converters. These filters are intended for use in 28
volt applications which must meet MIL-STD-461C CE03 and
CS01 and/or MIL-STD-461D, E and F CE102 and CS101 levels
of conducted emissions. One filter can be used with multiple
converters up to the rated output current of the filter.
Input Ripple and EMI
Switching DC/DC converters naturally generate two noise
components on the power input line: differential noise and
common mode noise. Input ripple current refers to both of these
components. Differential noise occurs between the positive input
and input common. Most Interpoint converters have an input filter
that reduces differential noise which is sufficient for many appli-
cations. Common mode noise occurs across stray capacitances
between the converter’s power train components and the base-
plate (bottom of the package) of the converter.
Where low noise currents are required to meet MIL-STD-461, a
power line filter is needed. The FMCE-1528 EMI power line filters
reduce the common mode and differential noise generated by the
converters. FMCE-1528 filters reduce input ripple current by as
much as 70 dB at 500 kHz and 1 MHz when used in conjunction
with Interpoint’s DC/DC converters.
Place the filter as close as possible to the converter for optimum
performance. The baseplates of the filter and the converter
should be connected with the shortest and widest possible
conductors.
Transients
A transient of -0.5 to +80 volts (0.5 ohm source impedance) will
not damage the filter but will be passed on to the converter:
Operation over Temperature
The FMCE-1528 Series filters are rated for full power opera-
tion from -55°C to +125°C case temperature. Current is derated
linearly to 80% at +135°C case temperature.
Insertion Loss
The maximum dc insertion loss at full load and nominal input
voltage represents a power loss of less than 4%.
Packaging
FMCE-1528 filters are sealed in metal hermetic side-leaded
packages. See cases U, V, W, Y, and Z.
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005•Redmond WA 98073-9705
425.882.3100 • [e-mail]
www.interpoint.com
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FMCE-1528 Rev E - 20100615