{"id":10978,"date":"2026-07-21T12:18:15","date_gmt":"2026-07-21T12:18:15","guid":{"rendered":"https:\/\/ic-vendor.com\/cr-12jl4-4r7\/"},"modified":"2026-07-21T12:18:15","modified_gmt":"2026-07-21T12:18:15","slug":"cr-12jl4-4r7","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/cr-12jl4-4r7\/","title":{"rendered":"CR-12JL4—4R7"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The CR-12JL4—4R7 from Bourns is a 4.7\u03a9 \u00b15% carbon film through-hole resistor in a 1206 (1\/4W) axial package. Part of the CR series, this general-purpose resistor provides cost-effective current limiting and damping for through-hole PCB designs, prototyping, and legacy equipment maintenance.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
Resistance<\/td>\n4.7\u03a9<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b15% (J)<\/td>\n<\/tr>\n
Power Rating<\/td>\n0.25W (1\/4W)<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n\u00b1350ppm\/\u00b0C<\/td>\n<\/tr>\n
Mounting<\/td>\nThrough-Hole (Axial)<\/td>\n<\/tr>\n
Body Size<\/td>\n3.2 x 1.6mm (1206 type)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +155\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 4.7\u03a9 low resistance for current limiting and damping<\/li>\n
  • Through-hole axial package for prototyping and legacy designs<\/li>\n
  • Carbon film technology for cost-effectiveness<\/li>\n
  • \u00b15% tolerance for general-purpose applications<\/li>\n
  • Easy manual soldering and rework<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Power supply output damping and snubber networks<\/li>\n
    • Speaker crossover and audio damping<\/li>\n
    • LED and indicator current limiting<\/li>\n
    • Prototyping and breadboard circuits<\/li>\n
    • Legacy equipment repair and maintenance<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CR-12JL4—4R7 from Bourns is a 4.7\u03a9 \u00b15% carbon film through-hole resistor in a 1206 (1\/4W) axial package. Part of the CR series, this general-purpose resistor provides cost-effective current limiting and damping for through-hole PCB designs, prototyping, and legacy equipment maintenance. Key Specifications Resistance 4.7\u03a9 Tolerance \u00b15% (J) Power Rating 0.25W (1\/4W) Temperature […]<\/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":[2303],"chip_brand":[220],"class_list":["post-10978","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-cr-12jl4-4r7","chip_brand-bourns"],"acf":{"brief_explanation":"4.7\u03a9 5% carbon film through-hole resistor, 1\/4W, axial","date_code":"","package_case":"Axial Leaded - 3.2 x 1.6mm body, 27mm lead span","in_stock":4717,"datasheet":"https:\/\/www.bourns.com\/products\/resistors\/carbon-film-resistors\/cr-series","price":"$0.01 @ 1ku","product_introduction":"The CR-12JL4---4R7 from Bourns is a 4.7\u03a9 \u00b15% carbon film through-hole resistor rated at 1\/4W (0.25W). Part of the CR series, this axial-lead resistor uses carbon film technology deposited on a ceramic rod substrate, providing a cost-effective solution for general-purpose current limiting, damping, and bias applications. The through-hole axial package is easy to handle and solder manually, making it ideal for prototyping, breadboarding, and legacy through-hole PCB designs. The 4.7\u03a9 value is commonly used in audio damping, power supply snubber networks, and low-value current limiting.","working_principle":"The CR-12JL4---4R7 uses a carbon film resistive element deposited on a ceramic rod substrate. A thin layer of carbon is deposited on the ceramic surface and then a spiral groove is cut to increase the effective path length and achieve the target 4.7\u03a9 resistance. The carbon film provides a stable resistive element with a moderate temperature coefficient of \u00b1350ppm\/\u00b0C. End caps with axial leads are attached, and the assembly is coated with an epoxy resin for environmental protection.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Lead 1<\/td>Passive<\/td>Axial lead; connect to circuit node<\/td><\/tr>\n
      2<\/td>Lead 2<\/td>Passive<\/td>Axial lead; connect to other circuit node<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Audio speaker crossover low-value damping resistor<\/li>\n
      • Linear power supply output LC filter damping resistor<\/li>\n
      • LED indicator current-limiting resistor in through-hole designs<\/li>\n
      • Prototyping breadboard current limiting for test circuits<\/li>\n
      • Relay coil damping and flyback snubber network<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        YAGEO<\/td>CFR-25JB-52-4R7<\/td>Axial<\/td>4.7\u03a9 5% 1\/4W carbon film<\/td><\/tr>\n
        Xicon<\/td>RCR1\/4-4R7JM<\/td>Axial<\/td>4.7\u03a9 5% 1\/4W<\/td><\/tr>\n
        KOA<\/td>CF1\/4-4R7J<\/td>Axial<\/td>4.7\u03a9 5% 1\/4W<\/td><\/tr>\n
        Panasonic<\/td>ERX1SJ4R7<\/td>Axial<\/td>4.7\u03a9 5% 1\/4W metal film<\/td><\/tr>\n
        TE Connectivity<\/td>CFR25J4R7<\/td>Axial<\/td>4.7\u03a9 5% 1\/4W<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10978"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10978\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10978"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}