PD - 94589
ASF461 SERIES
ADVANCED ANALOG
EMI FILTER
Description
The ASF461 EMI filter will reduce the input line re-
flected ripple current of the ASA line of DC/DC convert-
ers to levels below the CEO3 limits of MIL-STD-461.
These EMI filters are available with military screening
and built in a facility fully qualified to MIL-PRF-38534.
Four grades are offered with different screening op-
tions. Refer to Part Number section.
The ASF461 Filter is built using thick film hybrid tech-
nology and seam welded in a hermetic kovar package
for high reliability.
These units offer superior noise reduction and power
dissipation when compared with similar competitive
filters. No derating is required over the entire operating
temperature range.
ASF
Features
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Uses less than 1.2 sq. in. of Board Space
-55擄C to +125擄C Operation
Greater than 50db Ripple Current Reduction
Optimal Military Screening
No Derating for -55擄C to +125擄C Operation
Typical Application
+Vin
System
Bus
ASF461
EMI
Case
Filter
Output
Return
+Vout
+Vin
Case
+Vout
ASA28XX
DC/DC
Output
Return
R
L
Input
Return
Input
Return
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1
11/21/02