{"id":6929,"date":"2026-06-22T02:13:17","date_gmt":"2026-06-22T02:13:17","guid":{"rendered":"https:\/\/materialparts.com\/srn6045ta-2r2y\/"},"modified":"2026-06-22T02:13:17","modified_gmt":"2026-06-22T02:13:17","slug":"srn6045ta-2r2y","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/srn6045ta-2r2y\/","title":{"rendered":"SRN6045TA-2R2Y"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The SRN6045TA-2R2Y from Bourns is a semi-shielded SMD power inductor with 2.2uH inductance, 4.4A rated current, and 30.5 mOhm DCR in a 6x6x4.5mm package.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0646\u0648\u0639<\/td>\nSemi-Shielded SMD Power Inductor<\/td>\n<\/tr>\n
Inductance<\/td>\n2.2 uH (+\/-20%)<\/td>\n<\/tr>\n
Rated Current (Isat)<\/td>\n4.4 A (30% rolloff)<\/td>\n<\/tr>\n
Rated Current (Irms)<\/td>\n4.0 A (40C temperature rise)<\/td>\n<\/tr>\n
DC Resistance (DCR)<\/td>\n30.5 mOhm (max)<\/td>\n<\/tr>\n
Self-Resonant Frequency<\/td>\n52 MHz (typical)<\/td>\n<\/tr>\n
Shielding<\/td>\nSemi-shielded (magnetic epoxy)<\/td>\n<\/tr>\n
Core Material<\/td>\nIron powder composite<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n6.0 x 6.0 x 4.5 mm (SMD)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C (including self-heating)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 2.2uH inductance with 4.4A saturation current<\/li>\n
  • 30.5 mOhm low DCR for high efficiency<\/li>\n
  • Semi-shielded construction reduces EMI<\/li>\n
  • 6x6x4.5mm compact footprint<\/li>\n
  • Iron powder core for low core loss<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • DC-DC buck converter output inductor<\/li>\n
    • VRM output filter<\/li>\n
    • Point-of-load power supply<\/li>\n
    • Motor driver output filter<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SRN6045TA-2R2Y from Bourns is a semi-shielded SMD power inductor with 2.2uH inductance, 4.4A rated current, and 30.5 mOhm DCR in a 6x6x4.5mm package. Key Specifications Type Semi-Shielded SMD Power Inductor Inductance 2.2 uH (+\/-20%) Rated Current (Isat) 4.4 A (30% rolloff) Rated Current (Irms) 4.0 A (40C temperature rise) DC Resistance (DCR) […]<\/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":[13,29],"tags":[],"chip_brand":[220],"class_list":["post-6929","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-bourns"],"acf":{"brief_explanation":"Power Inductor, 2.2uH, 4.4A, 30.5mOhm, Semi-shielded, 6x6mm","date_code":"","package_case":"6.0 x 6.0 x 4.5 mm (SMD, semi-shielded)","in_stock":12345,"datasheet":"https:\/\/www.bourns.com\/docs\/Product-Datasheets\/SRN6045TA.pdf","price":"$0.25 @ 1ku","product_introduction":"The SRN6045TA-2R2Y from Bourns is a semi-shielded SMD power inductor with 2.2 uH inductance and 4.4 A saturation current in a 6 x 6 x 4.5 mm package. The semi-shielded construction uses a magnetic epoxy coating over the wound coil, providing a balance between the EMI suppression of a fully shielded inductor and the lower DCR of an unshielded design. The 30.5 mOhm maximum DCR minimizes conduction losses in DC-DC converters. The 4.4A saturation current (defined as 30% inductance rolloff) and 4.0A thermal current (40C temperature rise) provide adequate margin for typical 2-3A DC-DC converter designs. The iron powder composite core material provides low core loss at high switching frequencies (500 kHz to 2 MHz). The 2R2Y suffix encodes the inductance (2.2 uH) and tolerance (Y = +\/-20%).","working_principle":"The SRN6045TA-2R2Y stores energy in its magnetic field during the ON-time of a DC-DC converter's switching cycle and releases it during the OFF-time. The inductor consists of a copper winding around an iron powder composite core. The core material is composed of iron particles insulated from each other and pressed into a solid form, which distributes the magnetic flux throughout the core volume and reduces eddy current losses. The semi-shielding is achieved by coating the wound inductor with a magnetic epoxy compound that contains ferrite or iron powder particles. This coating provides a return path for a portion of the magnetic flux, reducing the external magnetic field by 10-20 dB compared to an unshielded inductor, while adding less than 20% to the DCR compared to a fully shielded drum-core design. The 2.2 uH inductance is determined by the number of turns, the core cross-sectional area, and the core permeability.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Terminal<\/td>Inductor terminal (non-polarized)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Terminal<\/td>Inductor terminal (non-polarized)<\/td><\/tr><\/table>","application_scenarios":"
      • 3.3V to 1.2V buck converter at 2MHz with 2.2uH\/4.4A output inductor<\/li>
      • FPGA core voltage VRM output filter with 30.5mOhm DCR for 92%+ efficiency<\/li>
      • USB PD 20V to 5V converter output inductor with 4A continuous current<\/li>
      • Motor driver LC output filter with 2.2uH and 52MHz self-resonant frequency<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Bourns<\/td>SRR6028TA-2R2Y<\/td>6x6x2.8mm<\/td>Lower profile version<\/td><\/tr>
        TDK<\/td>SLF6045T-2R2N1R0-PF<\/td>6x6x4.5mm<\/td>2.2uH, similar size<\/td><\/tr>
        Wurth<\/td>7440650022<\/td>6x6x2.8mm<\/td>2.2uH, lower height<\/td><\/tr>
        Murata<\/td>1274AS-H-2R2M<\/td>6x6x4.5mm<\/td>2.2uH, similar class<\/td><\/tr>
        Bourns<\/td>SRR1260TA-2R2Y<\/td>12x12mm<\/td>2.2uH, much higher current (10A)<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6929"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6929\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6929"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6929"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}