{"id":9548,"date":"2026-07-03T08:47:28","date_gmt":"2026-07-03T08:47:28","guid":{"rendered":"https:\/\/materialparts.com\/lf2012-ar90fab\/"},"modified":"2026-07-03T08:47:28","modified_gmt":"2026-07-03T08:47:28","slug":"lf2012-ar90fab","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lf2012-ar90fab\/","title":{"rendered":"LF2012-AR90FAB"},"content":{"rendered":"

Productos<\/h2>\n

The LF2012-AR90FAB is an EMI suppression filter chip, typically from Murata or TDK, in a 2012 (0805 metric) package. Designed for noise filtering on signal and power lines, it provides common-mode or differential-mode noise attenuation in a compact surface-mount footprint.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n
Tipo<\/td>\nEMI Filter \/ Line Filter<\/td>\n<\/tr>\n
Impedance<\/td>\nPer specification (frequency-dependent)<\/td>\n<\/tr>\n
Paquete<\/td>\n2012 (0805 Metric, 2.0 x 1.25 mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +85 deg C (typical)<\/td>\n<\/tr>\n
Current Rating<\/td>\nPer specification<\/td>\n<\/tr>\n
Mounting<\/td>\nMontaje en superficie<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Compact 0805 (2012 metric) footprint<\/li>\n
  • EMI noise suppression for signal integrity<\/li>\n
  • Surface-mount for automated assembly<\/li>\n
  • Suitable for high-speed digital line filtering<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • EMI filtering on high-speed digital lines<\/li>\n
    • Power line noise suppression<\/li>\n
    • USB and HDMI signal conditioning<\/li>\n
    • RF front-end interference rejection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LF2012-AR90FAB is an EMI suppression filter chip, typically from Murata or TDK, in a 2012 (0805 metric) package. Designed for noise filtering on signal and power lines, it provides common-mode or differential-mode noise attenuation in a compact surface-mount footprint. Key Specifications Type EMI Filter \/ Line Filter Impedance Per specification (frequency-dependent) Package […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[790],"chip_brand":[179],"class_list":["post-9548","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-lf2012-ar90fab","chip_brand-gigadevice"],"acf":{"brief_explanation":"EMI filter\/line filter, 2012 package, Murata\/TDK","date_code":"","package_case":"2012 (0805, 2.0 x 1.25 x 0.85 mm)","in_stock":13923,"datasheet":"https:\/\/www.murata.com\/","price":"$0.04 @ 1ku","product_introduction":"The LF2012-AR90FAB is an EMI suppression filter chip in a 2012 (0805 metric) surface-mount package. It provides noise attenuation on signal and power lines in compact electronic designs. The 0805 footprint is compatible with standard SMT assembly processes and occupies minimal board space. It is used in high-speed digital interfaces, power supply lines, and RF signal paths where electromagnetic interference must be controlled.","working_principle":"The LF2012-AR90FAB operates as a passive EMI filter using either ferrite material or LC structure to attenuate unwanted high-frequency noise. Common-mode filters present high impedance to common-mode currents while passing differential signals, while differential-mode filters attenuate noise between lines. The filter's impedance increases with frequency, blocking high-frequency interference while allowing the desired signal to pass. The 0805 package accommodates the necessary ferrite or inductor\/capacitor elements in a monolithic or composite construction.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal 1<\/td>I\/O<\/td>Filter input<\/td><\/tr>\n
      2<\/td>Terminal 2<\/td>I\/O<\/td>Filter output<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • EMI filtering on high-speed digital lines<\/li>\n
      • Power line noise suppression<\/li>\n
      • USB and HDMI signal conditioning<\/li>\n
      • RF front-end interference rejection<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Murata<\/td>NFM21PC204B1J3D<\/td>0805<\/td>EMI filter alternative<\/td><\/tr>\n
        TDK<\/td>MMZ2012S102AT000<\/td>0805<\/td>Ferrite bead alternative<\/td><\/tr>\n
        Wurth<\/td>7427920<\/td>0805<\/td>EMI filter alternative<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=9548"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9548\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=9548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=9548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=9548"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}