Bel Power Solutions offers a complete range of input filters to help control EMI in board-level DC-DC converter applications. The table below lists combinations of input filters and DC-DC converters that have test data available. These test results are presented only to provide general guidelines, as EMI issues vary considerably based on many variables specific to each application. Due to the large number of possible permutations of DC-DC converters and input filters, not all combinations have been tested. Therefore, please refer to the data presented for each filter to select filters that may work in combinations not specified below. DC-DC CONVERTER TESTED WITH FILTER PAGE MODEL NUMBERS SERIES Q24 F2410 2, 7 Q48 F4804A, F4810 2, 7 QD48 F4804A, F4810 2, 7 QL48 F4804A, F4810 2, 7 SQ24 F2410 2, 7 SQ48 F4804A, F4810 2, 7 SQE48 F4804A, F4810 2, 7 SQM48 F4804A, F4810 2, 7 QM48 F4810 7 QME48 F4810 7 SQT48 F4810 7 FES FC100V20A Last Time Buy 13 HBD FC100V5A Last Time Buy 13 LAST TIME BUY HES FC100V5A Last Time Buy 13 IAD FC100V5A Last Time Buy 13 IAS FC100V5A Last Time Buy 13 IES FC100V5A Last Time Buy 13 LES FC100V5A Last Time Buy 13 OET FC100V5A Last Time Buy 13 QBS FC100V5A Last Time Buy 13 QES FC100V5A Last Time Buy 13 The F4804A Input Filter minimizes the conducted and radiated emissions generated by switch mode DC-DC converters, and allows board designs utilizing DC-DC converters to meet stringent FCC and EN55022 Class B conducted emissions requirements. Unlike most available off-the-shelf filter modules, the F4804A, in addition to common mode noise reduction components, is provisioned with a differential LC-filter stage, which virtually guarantees compliance with conducted noise standards across the frequency range from 150 kHz to 30 MHz, including fundamental switching frequency and its harmonics. Test results show headroom of 15-20 dB for conducted noise quasi-peak levels, in relation to Class B requirements. F4804A filter is designed specifically for distributed power solutions in conjunction with DC-DC converters. Low profile and small size (only 0.75 sq. in.) in a surface mount package helps the designer save system board real estate, and simplifies the layout. A single filter can be used with multiple converters, and RoHS lead free solder and lead solder exempted is capable of providing up to 4 A to the converter input products are available bus at 85 C. When used as specified within this data Maximum current 4 A with no derating sheet, these filters do not require airflow and/or derating at high temperatures. Maximum operating input voltage 80 V 100 V 100 mS transient withstand capability Differential LC-filter stage Surface mounted design Small footprint only 0.75 sq. inch Low profile: 0.267 inch 6.7 mm maximum Low weight: 0.13 oz 3.66 g Operation over -40C to 85 C ambient temperature Differential and Common Mode filtering for DC-DC range converters: No airflow required up to 85 C o Telecommunications Enables DC-DC converter compliance with o Data communications EN55022 and FCC Class B requirements o Distributed Power Solutions conducted emissions Approved to the latest revision of safety standards: UL/CSA60950-1 Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 2020 Bel Power Solutions & Protection BCD.00344 AD