Low-pass electronic filter

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Overview
Power EMC Filters (Power Line EMC Filters) are electromagnetic compatibility filters designed for converters, inverters, power electronics, IEC inlets and electrical installations. This page provides product family overviews, representative datasheets, technical notes, selector guides and product briefs covering 2-line, 3-line and 4-line topologies, a wide rated-current range and multiple terminal and mounting options.

Product families / representative data sheets (selection)
Number of lines: 2 — Application: 2-line filter for high-voltage DC inverters — Rated current (A): 400 — Type / series example: B84252B*A
Number of lines: 2 — Application: 2-line filter for high-voltage DC inverters — Rated current (A): 200 — Type / series example: B84252A*Q, B84252A*A
Number of lines: 4 — Application: Filters for converters and power electronics — Rated current (A): 8 - 200 — Type / series example: B84244*121
Number of lines: 2 — Application: Filters for converters and power electronics — Rated current (A): 10 - 30 — Type / series example: B84142A*166 (and variants B84142A/C/J*S081, B84142A*R000)
Number of lines: 2 — Application: Filters for converters and power electronics — Rated current (A): 1 - 10 — Type / series example: B84114D (SIFI-D family)
Number of lines: 2 — Application: SIFI-H / SIFI-G / SIFI-F / SIFI-E / SIFI-B / SIFI-A — Rated current (A): ranges from 1 up to 1600 depending on family — Type / series examples: B84113H, B84113C, B84111F, B84115E, B84112G, B84111A
Number of lines: 3 — Application: 3-line filters for converters and regenerative converters — Rated current (A): ranges 10 - 2500 — Type / series examples: B84143A/B/C/D families (R021, R105, R106, R107, R410 variants)
Number of lines: 4 — Application: 4-line filters for installations and systems — Rated current (A): typical examples 6 - 63 / 8 - 200 — Type / series example: B84131, B84144A/B families

Product resources & documentation
Data sheets are available for each series (product families include multiple ordering-code variants). Technical resources include Application Notes, General Technical Information, Safety Instructions, Cautions & Warnings, Quality & Environment documents and a Selector Guide. Product briefs describe IEC inlet filters, DIN-rail EMI filters and high-current EMC filters.

Images and product visuals
Product imagery on the page shows representative filter examples and assemblies for the series listed above (busbar- and PCB-mount, IEC inlet variants, high-current variants). Images illustrate terminal types, housings and typical installations.

Technical characteristics / specifications

• Topologies: 2-line, 3-line and 4-line EMC / power line filters
• Typical applications: high-voltage DC inverters, converters, regenerative converters, IEC inlet filters, cabinet / installation filters, PCB-mounted filters
• Rated current: available from approx. 1 A up to 2500 A (series-dependent)
• Rated voltage: product variants cover e.g. 250 V DC, 250 V AC, 400 / 690 V AC, 500 V DC (1000 V DC spec variants), 1000 V AC / higher ranges depending on series
• Number of lines: 2, 3, 4 (series-dependent)
• Terminal / mounting options: busbars, straight busbar, threaded studs, tab connectors, pins, IEC connectors (C14/C20) with litz or tab connectors, finger-safe terminal blocks
• Typical product families / types: B84252A, B84252B, B84244, B84142A, B84143A/B/C/D, B84144A/B, B84131 and related SIFI-A..H designations (various insertion-loss classes)
• Documentation: detailed datasheets per ordering code, technical information PDFs (application notes, selector guides, safety instructions, quality & environment)
• Availability: multiple ordering-code variants inside each series to match rated current, terminal style and voltage requirements