{"id":9222,"date":"2026-07-03T03:51:39","date_gmt":"2026-07-03T03:51:39","guid":{"rendered":"https:\/\/materialparts.com\/nb12k00103jbb\/"},"modified":"2026-07-03T03:53:00","modified_gmt":"2026-07-03T03:53:00","slug":"nb12k00103jbb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/nb12k00103jbb\/","title":{"rendered":"NB12K00103JBB"},"content":{"rendered":"

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

The NB12K00103JBB is an NTC (Negative Temperature Coefficient) chip thermistor manufactured by KYOCERA AVX, part of the NB12 series. It features a nominal resistance of 10 kOhm at 25\u00b0C with \u00b15% tolerance in a compact 0805 (2012 Metric) surface-mount package. With a B-constant of 3630K (\u00b13%), thermal time constant of 5 seconds in air, and thermal dissipation factor of 2 mW\/\u00b0C, this thermistor provides accurate temperature sensing and compensation. AEC-Q200 qualified, it operates over a temperature range of -55\u00b0C to +150\u00b0C and features nickel barrier metallization for outstanding solderability.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nNTC Thermistor<\/td>\n<\/tr>\n
Resistance @ 25\u00b0C<\/td>\n10 kOhm<\/td>\n<\/tr>\n
Resistance Tolerance<\/td>\n\u00b15%<\/td>\n<\/tr>\n
B-Constant<\/td>\n3630K<\/td>\n<\/tr>\n
B-Constant Tolerance<\/td>\n\u00b13%<\/td>\n<\/tr>\n
Package \/ Case<\/td>\n0805 (2012 Metric)<\/td>\n<\/tr>\n
Dimensions<\/td>\n2.0 x 1.25 x 1.3 mm<\/td>\n<\/tr>\n
Thermal Time Constant (in Air)<\/td>\n5s<\/td>\n<\/tr>\n
Thermal Dissipation Factor<\/td>\n2 mW\/\u00b0C<\/td>\n<\/tr>\n
Temperature Coefficient<\/td>\n-4%\/\u00b0C<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4<\/td>\n-55\u00b0C \u81f3 +150\u00b0C<\/td>\n<\/tr>\n
Termination<\/td>\nSMD with Nickel Barrier<\/td>\n<\/tr>\n
Mounting<\/td>\n\u8868\u9762\u8d34\u88c5<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q200<\/td>\n<\/tr>\n
EU RoHS<\/td>\nCompliant with Exemption<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q200 qualified for automotive applications<\/li>\n
  • High quality NTC chip thermistor for surface mounting<\/li>\n
  • Nickel barrier metallization for outstanding solderability<\/li>\n
  • Wide resistance range available in NB12\/NB20 series<\/li>\n
  • Fast thermal response with 5s time constant<\/li>\n
  • Compact 0805 package for high-density mounting<\/li>\n
  • Suitable for both temperature compensation and control<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Temperature compensation in LCD displays and battery packs<\/li>\n
    • Mobile phones and portable electronics temperature sensing<\/li>\n
    • HVAC and air-conditioning systems<\/li>\n
    • Switch mode power supply temperature control<\/li>\n
    • Power transistor protection in various electronic circuits<\/li>\n
    • Automotive engine and cabin temperature monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The NB12K00103JBB is an NTC (Negative Temperature Coefficient) chip thermistor manufactured by KYOCERA AVX, part of the NB12 series. It features a nominal resistance of 10 kOhm at 25\u00b0C with \u00b15% tolerance in a compact 0805 (2012 Metric) surface-mount package. With a B-constant of 3630K (\u00b13%), thermal time constant of 5 seconds in […]<\/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":[13,42],"tags":[412],"chip_brand":[211],"class_list":["post-9222","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","tag-nb12k00103jbb","chip_brand-avx"],"acf":{"brief_explanation":"10kOhm NTC chip thermistor, 0805, B=3630K \u00b13%, \u00b15% tolerance, 5s thermal time constant, AEC-Q200","date_code":"","package_case":"0805 (2012 Metric) 2.0 x 1.25 x 1.3 mm","in_stock":8333,"datasheet":"https:\/\/www.mouser.com\/datasheet\/2\/368\/nb12_nb20-1857707.pdf","price":"$0.14 @ 1ku","product_introduction":"The NB12K00103JBB is a high-quality NTC chip thermistor from KYOCERA AVX's NB12 series, specifically developed for surface mounting applications. With a nominal resistance of 10 kOhm at 25\u00b0C and a B-constant of 3630K, this thermistor provides accurate and reliable temperature measurement across a wide operating range of -55\u00b0C to +150\u00b0C. The nickel barrier metallization ensures outstanding solderability, enabling the component to withstand the most severe soldering processes. The compact 0805 package with a 5-second thermal time constant makes it ideal for applications requiring fast thermal response. AEC-Q200 qualification ensures automotive-grade reliability for demanding environments.","working_principle":"The NB12K00103JBB operates as an NTC thermistor through the following mechanism:\n\n1. NTC Characteristic: The resistance decreases as temperature increases, following the Steinhart-Hart equation: 1\/T = A + B(ln R) + C(ln R)^3, where R is resistance and T is absolute temperature.\n\n2. B-Constant: The relationship between resistance and temperature is characterized by the B-constant (3630K), which defines the slope of the R-T curve between two reference temperatures (typically 25\u00b0C and 85\u00b0C).\n\n3. Thermal Response: With a thermal time constant of 5 seconds in still air, the thermistor responds quickly to temperature changes, making it suitable for real-time monitoring applications.\n\n4. Dissipation: The thermal dissipation factor of 2 mW\/\u00b0C indicates the power required to raise the thermistor temperature by 1\u00b0C above ambient, which must be considered to avoid self-heating errors in measurement circuits.","pin_description":"\n
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal A<\/td>Passive<\/td>NTC thermistor terminal - one end of the thermistor element<\/td><\/tr>\n
      2<\/td>Terminal B<\/td>Passive<\/td>NTC thermistor terminal - other end of the thermistor element<\/td><\/tr>\n<\/table>\n

      Note: This is a 2-terminal NTC thermistor with no polarity. The 0805 package has wraparound terminations. Self-heating must be minimized by using low measurement currents.<\/p>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Battery Pack<\/td>Temperature monitoring for charge\/discharge control<\/td>10kOhm @ 25\u00b0C, AEC-Q200<\/td><\/tr>\n
      LCD Display<\/td>Temperature compensation for contrast adjustment<\/td>NTC -4%\/\u00b0C slope, fast response<\/td><\/tr>\n
      SMPS<\/td>Over-temperature protection and thermal shutdown<\/td>-55\u00b0C to +150\u00b0C range<\/td><\/tr>\n
      Automotive HVAC<\/td>Cabin temperature sensing<\/td>AEC-Q200, high reliability<\/td><\/tr>\n
      Power Transistor Protection<\/td>Junction temperature monitoring<\/td>5s thermal time constant<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Key Specs<\/th>Notes<\/th><\/tr>\n
      Murata<\/td>NCP18XH103J03RB<\/td>0805<\/td>10kOhm, B=3380K, \u00b15%<\/td>Different B-constant<\/td><\/tr>\n
      TDK<\/td>NTCG164BH103JT1<\/td>0603<\/td>10kOhm, B=3380K, \u00b15%<\/td>Smaller package<\/td><\/tr>\n
      Vishay<\/td>NTCS0805E3103JMT<\/td>0805<\/td>10kOhm, B=3977K, \u00b15%<\/td>Different B-constant<\/td><\/tr>\n
      Panasonic<\/td>ERTJ1VG103FA<\/td>0603<\/td>10kOhm, B=3450K, \u00b11%<\/td>Higher precision<\/td><\/tr>\n
      Amphenol<\/td>RL2010-103-103-S<\/td>0805<\/td>10kOhm, B=3950K, \u00b15%<\/td>Different B-constant<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9222","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=9222"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9222\/revisions"}],"predecessor-version":[{"id":9236,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9222\/revisions\/9236"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9222"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}