DESCRIPTION
The STF28-461™ EMI filter module has been designed as a companion for Interpoint SMSA flyback power converters. Multiple SMSA power converters can be operated from a single filter provided the total power line current does not exceed the filter maximum rating. The STF filter will reduce the SMSA’s power line reflected ripple current to within the limit of MIL-STD-461C, Method CE03, as shown in the example of Figures 4 and 5.
The STF filter is fabricated using thick film hybrid technology and is sealed in a metal package for space, military, aerospace and other applications requiring EMI suppression.

FEATURES
• Fully qualified to Class H or K
• Passive components for
   maximum tolerance in space
   environments
• –55° to +125°C operation
• 28 volt input
• Up to 0.8 amps throughput current
• 50 dB minimum attenuation
   at 500 kHz
• Compliant to MIL-STD-461C, CE03
• Compatible with MIL-STD-704E
   DC power bus