FMGA-461_15 Datasheet, PDF (2/14 Pages) Interpoint Corporation Company – FMSA/FMGA EMI Input Filters 28 Volt Input - 0.8 AMP

Crane Aerospace & Electronics Power Solutions
FMSA/FMGA EMI Input Filters
28 Volt Input - 0.8 AMP
Positive
Input
Case Ground
(pins 4 and 8)
Input
Common
0.65 Ω
20 Ω
6800 pF
500 V
20 Ω
6800 pF
500 V
>285 µH
6 µH
2 µF
2 µF
FMSA-461
6 µH
x2
6800 pF / 500 V
The case ground connection between the filter and the converter should be as low an impedance as possible to
minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance.
Positive
Output
Output
Common
Figure 1: FMSA Schematic – Typical Values
FMSA-461
Positive
Input
Positive
Output
C
Case
Ground
R
Input
Output
Common Common
The RC output is an optional
damping circuit. It is recommended in
applications where 80 volt line
transients may occur with rise times
<200 µs. See text page one
"Connection and Operation."
C = 10 µF, 100V –
C = Sprague 109D106X9100C2
R = 2.2 Ω, 5%, 1/4 W, Carbon comp.
DC-DC Converter
Positive
Input
Positive
Output
Case
Ground
RL
Input
Output
Common Common
Multiple units allowed
up to the maximum
rated output current
RL
of the filter.
Figure 2: FMSA Damping Circuit
www.craneae.com/interpointcom
Page 2 of 14
FMSA/FMGA Rev AA - 2015.12.15