FMC-461 Datasheet | Interpoint Corporation

Features - - 55°C to +85°C operation - 0 to 40 VDC volt input - Up to 40 d B attenuation 110 k Hz to 50 MHz - Transient suppression - pliant to MIL-STD-461C, CE03 EMI INPUT FILTERS 28 VOLT INPUT FM-461, FMA-461 AND FMB-461 EMI FILTERS 1.75 TO 5 AMP MODELS INPUT VOLTAGE AND CURRENT Input (V) 0 - 40 0 - 40 0 - 40 Current ( A) 1.75 3.8 5.0 .. Size (max.): Non-flanged case H3 or H5 2.125 x 1.125 x 0.495- inches (53.98 x 28.58 x 12.57- mm) Flanged case K4 or K6 2.910 x 1.125 x 0.495- inches (73.91 x 28.58 x 12.57- mm) See Section B8, cases H3, H5, K4, and K6, for dimensions. - Height varies depending on model. Weight: Maximum - FM-461 38 grams, FMA-461 42 grams, FMB-461 43 grams Screening: Standard or ES. See Section C2 for screening options, see Section A5 for ordering information. DESCRIPTION The FM-461, FMA-461, and FMB-461 EMI filter modules have been specifically designed to reduce the input line reflected ripple current of Interpoint’s MTO, MTW, MHE, MLP, and MFW Series of DC/DC converters. They are intended for use in applications of high frequency ( 100 k Hz) switch-mode DC/DC converters which must meet MIL-STD-461C levels of conducted power line noise. These filters are built using thick-film hybrid technology and are sealed in metal packages for military, aerospace, and other highreliability applications. See Section B8, cases H3, H5, K4, and K6 for dimensions. See Section C2 for screening options. FILTER OPERATION A fast-reacting (1 picosecond) transient suppressor clamps the input voltage at approximately 47 V, protecting the DC/DC converter from line induced transients. The filters are rated to operate, with no degradation of performance, over the temperature range of - 55°C to +85°C (as measured at the baseplate). Above 85°C, input voltage and current must be derated as specified in “Derating” on the following page. The maximum power dissipation of the filters at maximum input current represents a power loss of less than 3% at typical...