{"id":9194,"date":"2026-07-02T13:34:25","date_gmt":"2026-07-02T13:34:25","guid":{"rendered":"https:\/\/materialparts.com\/rk73b2bttd151j\/"},"modified":"2026-07-02T13:54:10","modified_gmt":"2026-07-02T13:54:10","slug":"rk73b2bttd151j","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/rk73b2bttd151j\/","title":{"rendered":"RK73B2BTTD151J"},"content":{"rendered":"

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

The RK73B2BTTD151J is a KOA Speer AEC-Q200 qualified thick film chip resistor in a 1206 (3216 metric) package. Featuring 150\u03a9 resistance with \u00b15% tolerance, 0.25W power rating, \u00b1200ppm\/\u00b0C temperature coefficient, and moisture-resistant construction, it provides a medium-resistance, medium-power solution for automotive and industrial applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Resistance<\/td>\n150\u03a9<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b15%<\/td>\n<\/tr>\n
Power Rating<\/td>\n0.25W (1\/4W) @ 70\u00b0C ambient<\/td>\n<\/tr>\n
Temperature Coefficient (TCR)<\/td>\n\u00b1200ppm\/\u00b0C<\/td>\n<\/tr>\n
Maximum Working Voltage<\/td>\n200V<\/td>\n<\/tr>\n
Maximum Overload Voltage<\/td>\n400V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +155\u00b0C<\/td>\n<\/tr>\n
Rated Ambient Temperature<\/td>\n70\u00b0C (derating to 0W at 155\u00b0C)<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q200<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n1206 (3216 Metric)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q200 qualified for automotive applications<\/li>\n
  • Moisture-resistant construction<\/li>\n
  • Metal glaze thick film on ceramic substrate<\/li>\n
  • Suitable for reflow and flow soldering<\/li>\n
  • EU RoHS compliant (Pb-free termination)<\/li>\n
  • 3-layer electrode structure for high reliability<\/li>\n
  • Wide resistance range in the RK73B family<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive ECU current-limiting resistors<\/li>\n
    • LED ballast resistors<\/li>\n
    • Gate drive pull-down resistors<\/li>\n
    • Snubber and damping networks<\/li>\n
    • Industrial control circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RK73B2BTTD151J is a KOA Speer AEC-Q200 qualified thick film chip resistor in a 1206 (3216 metric) package. Featuring 150\u03a9 resistance with \u00b15% tolerance, 0.25W power rating, \u00b1200ppm\/\u00b0C temperature coefficient, and moisture-resistant construction, it provides a medium-resistance, medium-power solution for automotive and industrial applications. Key Specifications Resistance 150\u03a9 Tolerance \u00b15% Power Rating 0.25W […]<\/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":[13,51],"tags":[],"chip_brand":[400],"class_list":["post-9194","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-optocouplers-photocouplers","chip_brand-koa-speer"],"acf":{"brief_explanation":"AEC-Q200 150\u03a9 5% 0.25W thick film resistor, 1206, \u00b1200ppm\/\u00b0C, moisture-resistant","date_code":"","package_case":"1206 (3216 Metric, 3.20 x 1.60 x 0.60 mm)","in_stock":21472,"datasheet":"https:\/\/www.koaglobal.com\/-\/media\/Files\/KOA_Global\/EN\/product\/commonpdf\/rk73b.pdf","price":"$0.008 @ 5ku","product_introduction":"The RK73B2BTTD151J is a KOA Speer AEC-Q200 qualified thick film chip resistor in a 1206 (3216 metric) package. Featuring 150\u03a9 resistance with \u00b15% tolerance, 0.25W power rating at 70\u00b0C, \u00b1200ppm\/\u00b0C temperature coefficient, and 200V maximum working voltage, it uses metal glaze thick film on ceramic substrate for excellent heat and weather resistance. The moisture-resistant construction and 3-layer electrode structure ensure high reliability in automotive under-hood and industrial environments. The 1206 package provides a good balance between power handling and PCB area for current-limiting, LED ballast, and gate drive applications.","working_principle":"The RK73B2BTTD151J operates as a fixed thick film resistor using metal glaze thick film deposited on an alumina ceramic substrate. The resistive element is a metal-oxide-glass composite that provides excellent thermal stability and environmental resistance. The resistance value of 150\u03a9 is determined by the composition, thickness, and pattern of the thick film layer, with laser trimming achieving \u00b15% tolerance. The TCR of \u00b1200ppm\/\u00b0C means the resistance changes by no more than 0.02% per degree Celsius, or \u00b12% over the full -55\u00b0C to +155\u00b0C range. The 1206 package size provides sufficient surface area for 0.25W power dissipation with standard FR-4 PCB copper area. Power derating is linear from 100% at 70\u00b0C to 0% at 155\u00b0C. The moisture-resistant construction ensures stable resistance in high-humidity environments.","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Resistive element connection (3-layer: inner\/Ni barrier\/Sn)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Resistive element connection (3-layer: inner\/Ni barrier\/Sn)<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive LED tail light ballast resistor with 150\u03a9 at 0.25W and AEC-Q200 qualification<\/li>\n
      • MOSFET gate drive pull-down resistor with 150\u03a9 for defined off-state and 200V rating<\/li>\n
      • Snubber network resistor in DC-DC converter with 0.25W and \u00b1200ppm\/\u00b0C stability<\/li>\n
      • Industrial control current-limiting resistor with moisture-resistant construction<\/li>\n
      • Automotive ECU termination resistor with 150\u03a9 and 1206 footprint for moderate power handling<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        RK73H2BTTD1500F<\/td>KOA<\/td>150\u03a9 1% \u00b1100ppm\/\u00b0C, precision RK73H<\/td><\/tr>
        RC1206JR-07150RL<\/td>Yageo<\/td>150\u03a9 5% 1206, standard grade<\/td><\/tr>
        CRCW1206150RJNEA<\/td>Vishay<\/td>150\u03a9 5% 1206, automotive<\/td><\/tr>
        ERJ-8GEYJ151V<\/td>Panasonic<\/td>150\u03a9 5% 1206, thick film<\/td><\/tr>
        AC1206JR-07150RL<\/td>Yageo<\/td>150\u03a9 5% 1206, AEC-Q200<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9194"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9194\/revisions"}],"predecessor-version":[{"id":9203,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9194\/revisions\/9203"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9194"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}