The STF28-461 EMI filter is a 0.8 amp EMI input filter 28 volt input designed by Interpoint.
The Interpoint STF28-461 is an EMI filter module designed as a companion for Interpoint SMSA flyback power converters. It is fabricated using thick film hybrid technology and sealed in a metal package for space, military, aerospace, and other applications requiring EMI suppression. The filter provides both differential and common mode rejection to bring DC/DC converters into compliance with MIL-STD-461C, Method CE03.
The device is available in three screening options: Standard, Class H, or Class K (MIL-PRF-38534). It features passive components for maximum tolerance in space environments and operates within a temperature range of -55°C to +125°C. The datasheet includes detailed physical dimensions, pin configurations, and specific quality assurance screening procedures for different product classes.
| Input Voltage | 28 volt input |
|---|---|
| Throughput Current | Up to 0.8 amps |
| Minimum Attenuation | 50 dB at 500 kHz |
| Operating Temperature | -55° to +125°C |
| Weight | 10.3 grams typical, 11.5 grams maximum |
| Dimensions | 0.975 x 0.800 x 0.270 inches |
The STF28-461 filter offers three screening options: Standard, Class H, or Class K.
It is designed as a companion for Interpoint SMSA flyback power converters.
It is compliant to MIL-STD-461C, CE03 and compatible with MIL-STD-704E.