{"id":5434,"date":"2026-06-10T02:07:40","date_gmt":"2026-06-10T02:07:40","guid":{"rendered":"https:\/\/materialparts.com\/css2h-2512r-l500f\/"},"modified":"2026-06-10T02:07:40","modified_gmt":"2026-06-10T02:07:40","slug":"css2h-2512r-l500f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/css2h-2512r-l500f\/","title":{"rendered":"CSS2H-2512R-L500F"},"content":{"rendered":"

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

The CSS2H-2512R-L500F from Bourns is a 0.5mOhm 6W current sense resistor in a 2512 (6432 metric) surface-mount package. Using EB-welded metal strip construction with AEC-Q200 qualification, it provides ultra-low resistance and low thermal EMF for high-accuracy current sensing in automotive and industrial applications.<\/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
Resistance<\/td>\n0.5 mOhm (500 uOhm)<\/td>\n<\/tr>\n
Tolerance<\/td>\n+\/-1%<\/td>\n<\/tr>\n
Power Rating<\/td>\n6 W<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n+\/-50 ppm\/C<\/td>\n<\/tr>\n
Technology<\/td>\nMetal Element (EB welded)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n2512 (6432 metric)<\/td>\n<\/tr>\n
Dimensions<\/td>\n6.35 x 3.05 x 1.13 mm<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55 to +170 C<\/td>\n<\/tr>\n
Termination<\/td>\n2 terminal<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0647\u0644\u0627\u062a<\/td>\nAEC-Q200<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 0.5mOhm ultra-low resistance<\/li>\n
  • 6W high power rating in 2512 package<\/li>\n
  • +\/-1% tight tolerance<\/li>\n
  • +\/-50ppm\/C low TCR<\/li>\n
  • EB welded metal strip construction<\/li>\n
  • Low thermal EMF<\/li>\n
  • Excellent long-term stability<\/li>\n
  • AEC-Q200 automotive qualified<\/li>\n
  • RoHS compliant and halogen free<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive current sensing<\/li>\n
    • Motor drive current feedback<\/li>\n
    • Power supply current monitoring<\/li>\n
    • Battery management systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CSS2H-2512R-L500F from Bourns is a 0.5mOhm 6W current sense resistor in a 2512 (6432 metric) surface-mount package. Using EB-welded metal strip construction with AEC-Q200 qualification, it provides ultra-low resistance and low thermal EMF for high-accuracy current sensing in automotive and industrial applications. Key Specifications Resistance 0.5 mOhm (500 uOhm) Tolerance +\/-1% Power […]<\/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":[220],"class_list":["post-5434","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-bourns"],"acf":{"brief_explanation":"0.5mOhm 6W current sense resistor, 1%, 50ppm\/C, AEC-Q200, 2512","date_code":"","package_case":"2512 (6.35 x 3.05 x 1.13 mm)","in_stock":8195,"datasheet":"https:\/\/www.bourns.com\/docs\/Product-Datasheets\/CSS2H2512.pdf","price":"$0.55 @ 1ku","product_introduction":"The CSS2H-2512R-L500F from Bourns is a 0.5mOhm 6W current sense resistor in a 2512 (6432 metric) surface-mount package. The CSS2H series uses electron-beam (EB) welded metal strip construction for ultra-low resistance values with excellent long-term stability and low thermal EMF. The L500F suffix decodes as: L=low value, 500=0.5mOhm (500 micro-ohm), F=+\/-1% tolerance. The AEC-Q200 qualification makes it suitable for automotive current sensing applications where reliability under harsh conditions is essential. The 0.5mOhm resistance minimizes power dissipation and voltage drop in high-current paths, while the +\/-1% tolerance ensures accurate current measurement.","working_principle":"The CSS2H-2512R-L500F operates as a four-terminal current sense resistor using metal strip technology. (1) Metal Strip Construction: An electron-beam (EB) welded metal alloy strip forms the resistive element between two copper terminals. The metal strip provides the ultra-low 0.5mOhm resistance with +\/-50ppm\/C temperature coefficient and low thermal EMF. The EB welding ensures a reliable bond between the resistive element and terminals with minimal contact resistance. (2) Current Sensing: Current flowing through the resistor generates a proportional voltage drop (V = I x R). At 0.5mOhm, a 10A current produces only 5mV, requiring a precision amplifier for measurement. The low resistance minimizes power dissipation (P = I2 x R = 0.05W at 10A) and does not significantly affect the measured circuit. (3) Thermal Management: The 2512 package provides 6W power dissipation capability with the metal strip acting as an efficient thermal conductor to the PCB. The 1.13mm thickness allows efficient heat transfer to the board copper planes.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Power<\/td>Current input terminal<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Power<\/td>Current output terminal<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive BMS current sensing with 0.5mOhm minimizing voltage drop at 50A battery current<\/li>
      • Motor drive phase current measurement with AEC-Q200 qualification and 6W power rating<\/li>
      • Server power supply current monitoring with +\/-1% accuracy and 50ppm\/C stability<\/li>
      • Inverter output current feedback with low thermal EMF for precision measurement<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Resistance<\/th>Power<\/th>Notes<\/th><\/tr>
        CSS2H-2512R-L1L00F<\/td>Bourns<\/td>1 mOhm<\/td>6W<\/td>Higher resistance<\/td><\/tr>
        WSL2512R5000FEA<\/td>Vishay<\/td>0.5 mOhm<\/td>3W<\/td>Lower power<\/td><\/tr>
        ERJMS8SF0R5U<\/td>Panasonic<\/td>0.5 mOhm<\/td>3W<\/td>Lower power<\/td><\/tr>
        CRA2512-FZ-R500ELF<\/td>Bourns<\/td>0.5 mOhm<\/td>3W<\/td>Thick film type<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5434","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=5434"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5434\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5434"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5434"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}