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FMA-461 Scheda tecnica(PDF) 1 Page - Interpoint Corporation Company |
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FMA-461 Scheda tecnica(HTML) 1 Page - Interpoint Corporation Company |
1 / 11 page MODELS INPUT VOLTAGE AND CURRENT B5-3 Input (V) 0 - 40 0 - 40 0 - 40 Current ( A) 1.75 3.8 5.0 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 kHz) 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 high- reliability applications. See Section B8, cases H3, H5, K4, and K6 for dimensions. See Section C2 for screening options. MIL-STD NOISE MANAGEMENT When used in conjunction with Interpoint’s DC/DC converters (see connection diagram, Figure 2), the input ripple current will be reduced by 40 dB within the frequency band of 100 kHz to 50 MHz. This gives the filter/converter combination a performance which exceeds the CE03 test limit of MIL-STD-461C. The CE03 perform- ance of a model MHE2805S converter with and without the FM-461 filter is shown in Figures 6 and 7. 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 input voltage. LAYOUT REQUIREMENTS The case of the filter must be connected to the case of the converter through a low impedance connection to minimize EMI. EMI INPUT FILTERS 28 VOLT INPUT FM-461, FMA-461 AND FMB-461 EMI FILTERS 1.75 TO 5 AMP FEATURES • –55°C to +85°C operation • 0 to 40 VDC volt input • Up to 40 dB attenuation 110 kHz to 50 MHz • Transient suppression • Compliant to MIL-STD-461C, CE03 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. |
Codice articolo simile - FMA-461 |
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Descrizione simile - FMA-461 |
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