ASF461/CH International Rectifier, ASF461/CH Datasheet
ASF461/CH
Manufacturer Part Number
ASF461/CH
Description
Manufacturer
International Rectifier
Datasheet
1.ASF461CH.pdf
(4 pages)
Specifications of ASF461/CH
Mounting Style
Through Hole
Termination
PC Pins
Operating Temp Range
-55C to 125C
Lead Free Status / RoHS Status
Not Compliant
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.
Typical Application
www.irf.com
System
Bus
+Vin
Input
Return
ASF461
Filter
EMI
Output
Return
+Vout
Case
+Vin
Case
Input
Return
ASA28XX
DC/DC
Output
Return
+Vout
Features
n Uses less than 1.2 sq. in. of Board Space
n -55°C to +125°C Operation
n Greater than 50db Ripple Current Reduction
n Optimal Military Screening
n No Derating for -55°C to +125°C Operation
R
L
ASF461 SERIES
ASF
PD - 94589
11/21/02
1
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ASF461/CH Summary of contents
Page 1
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 ...
Page 2
ASF461 Series Specifications Parameter Condition Input Voltage Steady State Input Current Steady State Output Voltage Steady State Output Current Steady State Steady State DC Resistance ( Power Dissipation Max. Current 420 mA Noise Rejection 100 KHz 500 KHz ...
Page 3
Refer to last page for Pin Designation www.irf.com ASF461 Block Diagram ASF461 Series ...
Page 4
ASF461 Series 1.0 75 0 0.0 18 ± ins Pin Designation Pin No. Designation 1 Input Return * Input Return * 2 3 Input * 4 Input * ...