Crane Aerospace & Electronics Power Solutions
STF28-461 EMI Input Filters
28 VOlT INPuT – 0.8 aMP
Typical Performance Curves: 25°C Tc, nominal Vin, unless otherwise specified.
90
80
A)
70
60
50
40
30
20
10
0
CE
03
NARROWBAND
EMISSION LEVEL (dB
LI
M
IT
.015
0.1
1
FREQUENCY (MHz)
10
50
MSA2805S converter without a filter.
F
igure
4
90
80
A)
70
60
50
40
30
20
10
0
CE
03
NARROWBAND
LI
EMISSION LEVEL (dB
M
IT
.015
0.1
1
FREQUENCY (MHz)
10
50
MSA2805S converter at full load with an
STF28-461 EMI filter.
F
igure
5
10.0
MAGNITUDE OF Zo (Ohms)
3.2
1.0
0.32
0.10
2
µF
external capacitor on filter output
1K
10K
100K
FREQUENCY (Hz)
1M
Typical output impedance (Z) with input
shorted. STF28-461 EMI filter.
F
igure
6
www.craneae.com
Page 6 of 10
Rev A - 20070509
CRANE [ Crane Aerospace & Electronics. ]
