{"id":9221,"date":"2026-07-03T03:51:36","date_gmt":"2026-07-03T03:51:36","guid":{"rendered":"https:\/\/materialparts.com\/rk73h1jttd1541f\/"},"modified":"2026-07-03T03:52:59","modified_gmt":"2026-07-03T03:52:59","slug":"rk73h1jttd1541f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/rk73h1jttd1541f\/","title":{"rendered":"RK73H1JTTD1541F"},"content":{"rendered":"

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

The RK73H1JTTD1541F is a precision thick film chip resistor manufactured by KOA Speer Electronics, Inc., part of the RK73H series. It features a resistance of 1.54 kOhm with \u00b11% tolerance in a compact 0603 (1608 Metric) surface-mount package. With a power rating of 0.1W (1\/10W), temperature coefficient of \u00b1100 ppm\/\u00b0C, and maximum working voltage of 75V, 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 a triple-layer electrode construction with nickel barrier and tin plating for superior solderability and long-term stability.<\/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\n\n
Resistance<\/td>\n1.54 kOhm<\/td>\n<\/tr>\n
Power Rating<\/td>\n0.1W (1\/10W)<\/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>\n0603 (1608 Metric)<\/td>\n<\/tr>\n
Maximum Working Voltage<\/td>\n75V<\/td>\n<\/tr>\n
Maximum Overload Voltage<\/td>\n150V<\/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
Termination Style<\/td>\nSMD\/SMT (Sn Plating)<\/td>\n<\/tr>\n
Number of Terminations<\/td>\n2<\/td>\n<\/tr>\n
Dimensions (L x W x T)<\/td>\n1.6 x 0.8 x 0.45 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 for stable performance<\/li>\n
  • Metal glaze thick film on alumina ceramic substrate for excellent heat and weather resistance<\/li>\n
  • Triple-layer electrode structure (Ag\/Pd inner \/ Ni barrier \/ Sn plating) ensures high reliability<\/li>\n
  • Suitable for both flow and reflow soldering processes<\/li>\n
  • Lead-free terminations meet EU RoHS requirements<\/li>\n
  • Wide size lineup in RK73H series from 01005 to 2512<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive ECU signal conditioning and biasing networks<\/li>\n
    • Precision voltage dividers in power management circuits<\/li>\n
    • Industrial control and automation equipment<\/li>\n
    • Consumer electronics requiring tight tolerance resistors<\/li>\n
    • Telecommunications and networking equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RK73H1JTTD1541F is a precision thick film chip resistor manufactured by KOA Speer Electronics, Inc., part of the RK73H series. It features a resistance of 1.54 kOhm with \u00b11% tolerance in a compact 0603 (1608 Metric) surface-mount package. With a power rating of 0.1W (1\/10W), temperature coefficient of \u00b1100 ppm\/\u00b0C, and maximum working […]<\/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":[411],"chip_brand":[400],"class_list":["post-9221","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-resistors","tag-rk73h1jttd1541f","chip_brand-koa-speer"],"acf":{"brief_explanation":"1.54kOhm 0.1W thick film chip resistor, 0603, \u00b11%, \u00b1100ppm\/\u00b0C, AEC-Q200 automotive precision grade","date_code":"","package_case":"0603 (1608 Metric) 1.6 x 0.8 x 0.45 mm","in_stock":5823,"datasheet":"https:\/\/www.mouser.com\/datasheet\/2\/219\/RK73H-5715.pdf","price":"$0.004 @ 5ku","product_introduction":"The RK73H1JTTD1541F is a precision thick film flat chip resistor from KOA Speer Electronics' RK73H series, designed for applications requiring tight tolerance and low temperature coefficient. The resistor utilizes a metal glaze thick film deposited on a high-purity alumina ceramic substrate, providing excellent heat resistance and environmental stability. The triple-layer electrode construction consists of an inner electrode (Ag\/Pd thick film), nickel plating for barrier protection, and tin plating for solderability. With \u00b11% tolerance and \u00b1100 ppm\/\u00b0C TCR, this device is well-suited for precision voltage dividers, feedback networks, and signal conditioning circuits. AEC-Q200 qualification ensures the component meets stringent automotive reliability standards, including resistance to thermal shock, moisture, and extended high-temperature exposure.","working_principle":"The RK73H1JTTD1541F operates as a passive thick film resistor:\n\n1. Resistive Element: A metal glaze thick film (ruthenium oxide based) is screen-printed onto the alumina ceramic substrate and fired at high temperature. The resistance value is determined by the film composition, thickness, and geometric pattern.\n\n2. Triple-Layer Electrode: The inner electrode (Ag\/Pd alloy) provides low-resistance contact to the resistive film. The nickel barrier layer prevents solder leaching and migration. The outer tin plating enables reliable solder joint formation during assembly.\n\n3. Power Derating: At ambient temperatures up to 70\u00b0C, the full 0.1W power rating is available. Above 70\u00b0C, the allowable power dissipation decreases linearly to zero at 155\u00b0C.\n\n4. Voltage Limitation: The effective working voltage is the lesser of the calculated value (sqrt(P x R)) and the maximum rated voltage of 75V.","pin_description":"\n
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal A<\/td>Passive<\/td>Resistor terminal - connected to one end of the resistive element through inner electrode<\/td><\/tr>\n
      2<\/td>Terminal B<\/td>Passive<\/td>Resistor terminal - connected to the other end of the resistive element through inner electrode<\/td><\/tr>\n<\/table>\n

      Note: This is a 2-terminal passive chip resistor with no polarity. The 0603 package has terminations on opposite ends. Land pattern per IPC-7351: pad width 0.8-1.0mm, pad length 0.6-0.8mm, pad spacing 0.8-1.0mm.<\/p>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Automotive ECU<\/td>Precision voltage divider in sensor interface<\/td>\u00b11% tolerance, AEC-Q200, -55\u00b0C to +155\u00b0C<\/td><\/tr>\n
      Power Supply<\/td>Feedback resistor network in voltage regulators<\/td>\u00b1100 ppm\/\u00b0C TCR, 75V withstand<\/td><\/tr>\n
      Industrial Control<\/td>Biasing and current limiting in signal paths<\/td>High reliability, moisture resistance<\/td><\/tr>\n
      Telecom Equipment<\/td>Impedance matching and termination<\/td>Precision tolerance, compact 0603 size<\/td><\/tr>\n
      Consumer Electronics<\/td>General-purpose precision signal conditioning<\/td>Cost-effective, RoHS compliant<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Key Specs<\/th>Notes<\/th><\/tr>\n
      Yageo<\/td>RC0603FR-071K54L<\/td>0603<\/td>1.54kOhm, 0.1W, 1%<\/td>Direct equivalent<\/td><\/tr>\n
      Vishay<\/td>CRCW06031K54FKEA<\/td>0603<\/td>1.54kOhm, 0.1W, 1%<\/td>Direct equivalent<\/td><\/tr>\n
      Panasonic<\/td>ERJ-3EKF1541V<\/td>0603<\/td>1.54kOhm, 0.1W, 1%<\/td>Direct equivalent<\/td><\/tr>\n
      Bourns<\/td>CR0603-FX-1541ELF<\/td>0603<\/td>1.54kOhm, 0.1W, 1%<\/td>Direct equivalent<\/td><\/tr>\n
      TE Connectivity<\/td>CRG0603F1K54<\/td>0603<\/td>1.54kOhm, 0.1W, 1%<\/td>Direct equivalent<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9221","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=9221"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9221\/revisions"}],"predecessor-version":[{"id":9235,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9221\/revisions\/9235"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9221"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9221"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}