{"id":9224,"date":"2026-07-03T03:51:43","date_gmt":"2026-07-03T03:51:43","guid":{"rendered":"https:\/\/materialparts.com\/rk73h2attd2003f\/"},"modified":"2026-07-03T03:53:03","modified_gmt":"2026-07-03T03:53:03","slug":"rk73h2attd2003f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/rk73h2attd2003f\/","title":{"rendered":"RK73H2ATTD2003F"},"content":{"rendered":"

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

The RK73H2ATTD2003F is a precision thick film chip resistor manufactured by KOA Speer Electronics, part of the RK73H series. It features a resistance of 200 kOhm with \u00b11% tolerance in a 0805 (2012 Metric) surface-mount package. With a power rating of 0.25W (1\/4W), temperature coefficient of \u00b1100 ppm\/\u00b0C, and maximum working voltage of 150V, this resistor is AEC-Q200 qualified for automotive applications. The device operates reliably over a wide temperature range of -55\u00b0C to +155\u00b0C and features high stability and reliability with a triple-layer electrode construction.<\/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\n\n\n\n
Resistance<\/td>\n200 kOhm<\/td>\n<\/tr>\n
Power Rating<\/td>\n0.25W (1\/4W)<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b1 1%<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n\u00b1100 ppm\/\u00b0C<\/td>\n<\/tr>\n
Package \/ Case<\/td>\n0805 (2012 Metric)<\/td>\n<\/tr>\n
Maximum Working Voltage<\/td>\n150V<\/td>\n<\/tr>\n
Maximum Overload Voltage<\/td>\n300V<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55\u00b0C to +155\u00b0C<\/td>\n<\/tr>\n
Rated Ambient Temperature<\/td>\n70\u00b0C<\/td>\n<\/tr>\n
Rated Terminal Part Temperature<\/td>\n125\u00b0C<\/td>\n<\/tr>\n
Composition<\/td>\nThick Film (Metal Glaze)<\/td>\n<\/tr>\n
Dimensions (L x W x T)<\/td>\n2.0 x 1.25 x 0.5 mm<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0647\u0644\u0627\u062a<\/td>\nAEC-Q200<\/td>\n<\/tr>\n
EU RoHS<\/td>\nCompliant with Exemption<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • AEC-Q200 qualified for automotive grade reliability<\/li>\n
  • Precision \u00b11% tolerance and \u00b1100 ppm\/\u00b0C TCR<\/li>\n
  • High stability and reliability for demanding applications<\/li>\n
  • Metal glaze thick film on alumina ceramic substrate<\/li>\n
  • Triple-layer electrode construction for high reliability<\/li>\n
  • Suitable for both flow and reflow soldering processes<\/li>\n
  • 0805 package offers good power handling in compact footprint<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive ECU precision measurement circuits<\/li>\n
    • High-impedance voltage dividers in sensor interfaces<\/li>\n
    • Industrial instrumentation and control<\/li>\n
    • Medical equipment signal conditioning<\/li>\n
    • Telecommunications and networking equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RK73H2ATTD2003F is a precision thick film chip resistor manufactured by KOA Speer Electronics, part of the RK73H series. It features a resistance of 200 kOhm with \u00b11% tolerance in a 0805 (2012 Metric) surface-mount package. With a power rating of 0.25W (1\/4W), temperature coefficient of \u00b1100 ppm\/\u00b0C, and maximum working voltage of […]<\/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":[13,62],"tags":[414],"chip_brand":[400],"class_list":["post-9224","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-resistors","tag-rk73h2attd2003f","chip_brand-koa-speer"],"acf":{"brief_explanation":"200kOhm 0.25W thick film chip resistor, 0805, \u00b11%, \u00b1100ppm\/\u00b0C, AEC-Q200 precision automotive grade","date_code":"","package_case":"0805 (2012 Metric) 2.0 x 1.25 x 0.5 mm","in_stock":42500,"datasheet":"https:\/\/www.mouser.com\/datasheet\/2\/219\/RK73H-5715.pdf","price":"$0.004 @ 5ku","product_introduction":"The RK73H2ATTD2003F is a precision thick film flat chip resistor from KOA Speer Electronics' RK73H series. With a resistance value of 200 kOhm, \u00b11% tolerance, and \u00b1100 ppm\/\u00b0C temperature coefficient, this resistor is designed for high-stability applications requiring precise resistance values. The 0805 package provides a power rating of 0.25W with a maximum working voltage of 150V, offering an excellent balance between power handling and board space efficiency. The metal glaze thick film on alumina ceramic substrate ensures excellent heat resistance and environmental stability. AEC-Q200 qualification confirms automotive-grade reliability for demanding environments.","working_principle":"The RK73H2ATTD2003F operates as a passive thick film resistor:\n\n1. Resistive Element: A metal glaze thick film is screen-printed onto the alumina ceramic substrate and fired at high temperature. The 200 kOhm value is achieved through precise control of film composition and geometric pattern.\n\n2. Precision Control: The \u00b11% tolerance and \u00b1100 ppm\/\u00b0C TCR are achieved through laser trimming of the resistive film during manufacturing.\n\n3. Power Derating: Full 0.25W rating available up to 70\u00b0C ambient. Above 70\u00b0C, power decreases linearly to zero at 155\u00b0C.\n\n4. Voltage Limitation: The effective working voltage is the lesser of sqrt(P x R) and 150V maximum.","pin_description":"\n
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal A<\/td>Passive<\/td>Resistor terminal - one end of the resistive element<\/td><\/tr>\n
      2<\/td>Terminal B<\/td>Passive<\/td>Resistor terminal - other end of the resistive element<\/td><\/tr>\n<\/table>\n

      Note: This is a 2-terminal passive chip resistor with no polarity. The 0805 package has terminations on opposite ends.<\/p>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Automotive ECU<\/td>High-impedance voltage divider<\/td>\u00b11%, AEC-Q200, -55\u00b0C to +155\u00b0C<\/td><\/tr>\n
      Sensor Interface<\/td>Precision feedback resistor<\/td>\u00b1100 ppm\/\u00b0C, 150V withstand<\/td><\/tr>\n
      Medical Equipment<\/td>Signal conditioning network<\/td>High stability, \u00b11% tolerance<\/td><\/tr>\n
      Industrial Instrumentation<\/td>Measurement bridge resistor<\/td>0.25W, precision grade<\/td><\/tr>\n
      Telecom Equipment<\/td>Biasing and filtering<\/td>High reliability, compact size<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Key Specs<\/th>Notes<\/th><\/tr>\n
      Yageo<\/td>RC0805FR-07200KL<\/td>0805<\/td>200kOhm, 0.125W, 1%<\/td>Lower power rating<\/td><\/tr>\n
      Vishay<\/td>CRCW0805200KFKEA<\/td>0805<\/td>200kOhm, 0.125W, 1%<\/td>Lower power rating<\/td><\/tr>\n
      Panasonic<\/td>ERJ-6ENF2003V<\/td>0805<\/td>200kOhm, 0.125W, 1%<\/td>Lower power rating<\/td><\/tr>\n
      Bourns<\/td>CR0805-FX-2003ELF<\/td>0805<\/td>200kOhm, 0.125W, 1%<\/td>Lower power rating<\/td><\/tr>\n
      TE Connectivity<\/td>CRG0805F200K<\/td>0805<\/td>200kOhm, 0.125W, 1%<\/td>Lower power rating<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9224","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=9224"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9224\/revisions"}],"predecessor-version":[{"id":9238,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9224\/revisions\/9238"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9224"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9224"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}