{"id":6257,"date":"2026-06-12T10:11:05","date_gmt":"2026-06-12T10:11:05","guid":{"rendered":"https:\/\/materialparts.com\/472720001-2\/"},"modified":"2026-06-12T10:11:05","modified_gmt":"2026-06-12T10:11:05","slug":"472720001-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/472720001-2\/","title":{"rendered":"472720001"},"content":{"rendered":"

Productos<\/h2>\n

The 472720001 from Murata is a surface-mount ferrite bead designed for EMI suppression in power and signal lines. It provides high impedance at high frequencies to block noise while allowing DC and low-frequency signals to pass with minimal attenuation.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n
Tipo<\/td>\nFerrite Bead \/ EMI Suppressor<\/td>\n<\/tr>\n
Impedance (at 100 MHz)<\/td>\n220 Ohms (typical)<\/td>\n<\/tr>\n
DC Resistance (Max)<\/td>\n0.1 Ohms<\/td>\n<\/tr>\n
Rated Current<\/td>\n3A (max)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55 to 125 C<\/td>\n<\/tr>\n
Paquete<\/td>\n0805 (2012 metric)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • High impedance at noise frequencies for effective EMI suppression<\/li>\n
  • Low DC resistance minimizes voltage drop<\/li>\n
  • 3A rated current suitable for power line filtering<\/li>\n
  • Compact 0805 surface-mount package<\/li>\n
  • RoHS compliant and halogen-free<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Power line EMI filtering<\/li>\n
    • Signal line noise suppression<\/li>\n
    • USB and HDMI cable noise countermeasures<\/li>\n
    • DC-DC converter output filtering<\/li>\n
    • Automotive electronics EMI suppression<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 472720001 from Murata is a surface-mount ferrite bead designed for EMI suppression in power and signal lines. It provides high impedance at high frequencies to block noise while allowing DC and low-frequency signals to pass with minimal attenuation. Key Specifications Type Ferrite Bead \/ EMI Suppressor Impedance (at 100 MHz) 220 Ohms […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[202],"class_list":["post-6257","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-murata"],"acf":{"brief_explanation":"220 Ohm 3A ferrite bead EMI suppressor in 0805 package, -55 to 125C","date_code":"","package_case":"0805 (2.0 x 1.25 x 1.0mm)","in_stock":14064,"datasheet":"https:\/\/www.murata.com\/en-global\/products\/productdetail?partno=472720001","price":"$0.02 @ 10ku","product_introduction":"The 472720001 from Murata is a surface-mount ferrite bead designed for electromagnetic interference (EMI) suppression in electronic circuits. It provides high impedance at noise frequencies (typically 220 Ohms at 100 MHz) while maintaining low DC resistance (0.1 Ohms max) to minimize voltage drop on power lines. Rated for 3A continuous current, it is suitable for filtering both power and signal lines in a wide range of applications. The compact 0805 package enables high-density PCB layouts while maintaining effective noise suppression performance.","working_principle":"The 472720001 ferrite bead operates on the principle of frequency-dependent impedance. **Ferrite Material**: The bead consists of a conductive wire passed through a ferrite ceramic material. The ferrite's magnetic properties cause the impedance to increase with frequency. **DC and Low Frequencies**: At DC and low frequencies, the ferrite bead presents only the DC resistance of the wire (typically 0.1 Ohms), allowing power and signal currents to pass with negligible voltage drop. **High Frequencies**: At noise frequencies (100 MHz and above), the ferrite material exhibits high impedance due to the combination of inductive reactance (XL) and resistive losses (AC resistance from magnetic hysteresis and eddy currents). This high impedance blocks high-frequency noise from propagating along the line. **Energy Dissipation**: Unlike inductors which store energy and can cause resonance, ferrite beads dissipate noise energy as heat in the ferrite material, eliminating the risk of resonant ringing.","pin_description":"
      Terminal<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>Terminal A<\/td>Signal\/power input<\/td><\/tr>
      2<\/td>Terminal B<\/td>Signal\/power output<\/td><\/tr><\/table>","application_scenarios":"
      • Power Line Filtering: Suppressing switching noise from DC-DC converters on VCC and ground planes<\/li>
      • USB Noise: Filtering high-frequency noise on USB D+\/D- and VBUS lines<\/li>
      • HDMI\/Display: EMI suppression on high-speed differential signal pairs<\/li>
      • Automotive ECU: Noise filtering on CAN bus and sensor power supply lines<\/li>
      • Audio Systems: Preventing digital switching noise from coupling into analog audio circuits<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        BLM21PG221SN1D<\/td>Murata<\/td>220 Ohm, 2A, 0805, similar specs<\/td><\/tr>
        GZ2012D221TF<\/td>Taiyo Yuden<\/td>220 Ohm, 2A, 0805 ferrite bead<\/td><\/tr>
        MPZ2012S221AT000<\/td>TDK<\/td>220 Ohm, 3A, 0805, automotive grade<\/td><\/tr>
        MI0805K221R-10<\/td>Laird<\/td>220 Ohm, 3A, 0805 ferrite bead<\/td><\/tr>
        7427920220<\/td>Wurth Elektronik<\/td>220 Ohm, 3A, 0805, high current<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6257","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=6257"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6257\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6257"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}