{"id":3722,"date":"2026-06-08T02:23:43","date_gmt":"2026-06-08T02:23:43","guid":{"rendered":"https:\/\/materialparts.com\/blm18pg471sn1d\/"},"modified":"2026-06-08T02:23:43","modified_gmt":"2026-06-08T02:23:43","slug":"blm18pg471sn1d","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/blm18pg471sn1d\/","title":{"rendered":"BLM18PG471SN1D"},"content":{"rendered":"

Productos<\/h2>\n

The BLM18PG471SN1D from Murata is a chip ferrite bead from the EMIFIL BLM18PG series designed for high-frequency noise suppression in power lines. It features 470 ohm impedance at 100MHz, 1A rated current, and 0.2 ohm max DC resistance in a 0603 (1608 metric) package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Impedance at 100MHz<\/td>\n470 ohm +\/-25%<\/td>\n<\/tr>\n
Rated Current<\/td>\n1A (at 85C and 125C)<\/td>\n<\/tr>\n
DC Resistance (max)<\/td>\n0.2 ohm<\/td>\n<\/tr>\n
Package Size<\/td>\n0603 (1.6 x 0.8 x 0.8 mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55 to 125 C<\/td>\n<\/tr>\n
Number of Circuits<\/td>\n1<\/td>\n<\/tr>\n
Category<\/td>\nFor DC power line<\/td>\n<\/tr>\n
Weight<\/td>\n0.005g (typ)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 470 ohm impedance at 100MHz for effective EMI suppression<\/li>\n
  • Low DC resistance of 0.2 ohm max for minimal voltage drop<\/li>\n
  • 1A rated current suitable for power line applications<\/li>\n
  • Does not require ground connection for effective operation<\/li>\n
  • Nickel barrier electrodes provide excellent solder heat resistance<\/li>\n
  • Compact 0603 footprint for high-density PCB designs<\/li>\n
  • RoHS compliant and lead-free<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • DC power line noise suppression<\/li>\n
    • Switching power supply output filtering<\/li>\n
    • Digital circuit power rail decoupling<\/li>\n
    • USB and HDMI port EMI filtering<\/li>\n
    • Automotive electronics power line filtering<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BLM18PG471SN1D from Murata is a chip ferrite bead from the EMIFIL BLM18PG series designed for high-frequency noise suppression in power lines. It features 470 ohm impedance at 100MHz, 1A rated current, and 0.2 ohm max DC resistance in a 0603 (1608 metric) package. Key Specifications Impedance at 100MHz 470 ohm +\/-25% Rated […]<\/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":[57,13],"tags":[],"chip_brand":[202],"class_list":["post-3722","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","chip_brand-murata"],"acf":{"brief_explanation":"470ohm ferrite bead, 1A, 0.2ohm DCR, 0603, DC power line EMI suppression","date_code":"","package_case":"0603 [1608 Metric] (1.6 x 0.8 x 0.8 mm)","in_stock":13346,"datasheet":"https:\/\/www.murata.com\/en-global\/products\/productdetail?partno=BLM18PG471SN1%23","price":"$0.012 @ 4ku","product_introduction":"The BLM18PG471SN1D from Murata is a chip ferrite bead from the EMIFIL BLM18PG series, specifically designed for high-frequency noise suppression in DC power line applications. With an impedance of 470 ohm at 100MHz and low DC resistance of 0.2 ohm maximum, it effectively attenuates high-frequency noise while maintaining minimal voltage drop at DC. The device is rated for 1A continuous current at both 85C and 125C ambient temperatures. Unlike traditional EMI filters, the BLM series does not require a ground connection, making it effective in circuits without stable ground lines. The nickel barrier structure of the external electrodes provides excellent solder heat resistance. The compact 0603 (1.6 x 0.8mm) footprint is ideal for high-density PCB layouts.","working_principle":"The BLM18PG471SN1D operates as a high-frequency impedance element using the frequency-dependent characteristics of ferrite material. Key subsystems include: (1) Ferrite Material - the multi-layer ferrite bead structure presents low impedance at DC and low frequencies, allowing power current to pass with minimal voltage drop (0.2 ohm DC resistance); at high frequencies, the ferrite material's magnetic permeability creates high impedance (470 ohm at 100MHz) that absorbs and converts noise energy to heat; (2) Multi-Layer Construction - alternating layers of ferrite material and internal electrodes create a monolithic structure with consistent impedance characteristics; (3) Nickel Barrier Electrodes - a nickel barrier layer between the ferrite and external terminals prevents silver migration and provides excellent solder heat resistance during PCB assembly; (4) Impedance-Frequency Curve - impedance rises from near-zero at DC through the resistive region (30MHz to several hundred MHz) where noise energy is dissipated as heat, avoiding resonance issues.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>I\/O<\/td>Signal\/power connection (no polarity)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>I\/O<\/td>Signal\/power connection (no polarity)<\/td><\/tr><\/table>","application_scenarios":"
      • DC power line noise filtering on switching regulator outputs<\/li>
      • Digital IC power rail decoupling: placing near VCC pins to suppress switching noise<\/li>
      • USB and HDMI port EMI filtering: series placement on power and signal lines<\/li>
      • Automotive electronics: power line noise suppression in infotainment and ADAS modules<\/li>
      • LED driver output filtering: reducing high-frequency ripple on LED power rails<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Murata<\/td>BLM18PG121SN1D<\/td>0603<\/td>120 ohm, 2A, lower impedance<\/td><\/tr>
        TDK<\/td>MMZ1608S471ATD25<\/td>0603<\/td>470 ohm, 1A, equivalent<\/td><\/tr>
        TAIYO YUDEN<\/td>FBMK1608HS470-T<\/td>0603<\/td>470 ohm, 1A ferrite bead<\/td><\/tr>
        Samsung<\/td>CIM22P471NE<\/td>0805<\/td>470 ohm, larger package<\/td><\/tr>
        Murata<\/td>BLM18PG471SN1J<\/td>0603<\/td>Same part, different packaging<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3722","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=3722"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3722\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3722"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}