{"id":10974,"date":"2026-07-21T12:18:11","date_gmt":"2026-07-21T12:18:11","guid":{"rendered":"https:\/\/ic-vendor.com\/ertj1vr103j\/"},"modified":"2026-07-21T12:18:11","modified_gmt":"2026-07-21T12:18:11","slug":"ertj1vr103j","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/ertj1vr103j\/","title":{"rendered":"ERTJ1VR103J"},"content":{"rendered":"

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

The ERTJ1VR103J from Panasonic is an NTC (Negative Temperature Coefficient) thermistor in a 0603 (1608 metric) chip package, with a nominal resistance of 10k\u03a9 at 25\u00b0C and B-value of 4250K. This multilayer SMD thermistor provides accurate temperature measurement for thermal management, temperature compensation, and over-temperature protection in compact electronic systems.<\/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
Thermistor Type<\/td>\nNTC (Negative Temperature Coefficient)<\/td>\n<\/tr>\n
Resistance at 25\u00b0C (R25)<\/td>\n10k\u03a9 \u00b15%<\/td>\n<\/tr>\n
B-Value (B25\/50)<\/td>\n4250K \u00b12%<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n0603 (1608 Metric) – 1.6 x 0.8 x 0.6mm<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
Construction<\/td>\nMultilayer \/ Monolithic<\/td>\n<\/tr>\n
Terminal<\/td>\nSn (lead-free)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 10k\u03a9 R25 with \u00b15% tolerance for accurate temperature sensing<\/li>\n
  • B25\/50 value of 4250K \u00b12% for predictable resistance-temperature curve<\/li>\n
  • Multilayer monolithic construction for high reliability<\/li>\n
  • 0603 chip package compatible with standard SMT assembly<\/li>\n
  • Wide -40\u00b0C to +125\u00b0C operating range<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Battery pack temperature monitoring for safety and charge control<\/li>\n
    • CPU and memory module temperature sensing<\/li>\n
    • LCD display contrast temperature compensation<\/li>\n
    • Crystal oscillator frequency temperature compensation<\/li>\n
    • Consumer electronics over-temperature protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ERTJ1VR103J from Panasonic is an NTC (Negative Temperature Coefficient) thermistor in a 0603 (1608 metric) chip package, with a nominal resistance of 10k\u03a9 at 25\u00b0C and B-value of 4250K. This multilayer SMD thermistor provides accurate temperature measurement for thermal management, temperature compensation, and over-temperature protection in compact electronic systems. Key Specifications Thermistor […]<\/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":[2299],"chip_brand":[238],"class_list":["post-10974","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-ertj1vr103j","chip_brand-panasonic"],"acf":{"brief_explanation":"NTC thermistor 10k\u03a9 @ 25\u00b0C, B=4250K, 0603, \u00b15%, multilayer","date_code":"","package_case":"0603 (1608 Metric) - 1.6 x 0.8 x 0.6mm","in_stock":9755,"datasheet":"https:\/\/industrial.panasonic.com\/cdbs\/www-data\/pdf2\/AUA0000\/AUA0000AE244.pdf","price":"$0.10 @ 1ku","product_introduction":"The ERTJ1VR103J from Panasonic is an NTC thermistor in a 0603 (1608 metric) multilayer chip package with a nominal resistance of 10k\u03a9 at 25\u00b0C and B25\/50 constant of 4250K. As a negative temperature coefficient device, its resistance decreases predictably with increasing temperature, enabling accurate temperature measurement using a simple voltage divider circuit. The \u00b15% R25 tolerance and \u00b12% B-value tolerance provide good measurement accuracy. The multilayer monolithic construction ensures reliability and mechanical robustness for SMT assembly. The part numbering follows Panasonic ERTJ convention: ERT=NTC thermistor, J=chip type, 1V=0603 size, R103=10k\u03a9 (10\u00d710\u00b3), J=\u00b15% tolerance.","working_principle":"The ERTJ1VR103J uses a multilayer NTC (Negative Temperature Coefficient) ceramic construction based on transition metal oxide semiconductors (typically manganese, nickel, and cobalt oxides). When temperature increases, the thermal energy excites charge carriers in the semiconductor ceramic, increasing the number of free electrons and holes, which dramatically reduces the bulk resistance. The relationship between resistance and temperature follows the Steinhart-Hart equation or the simplified B-parameter equation: R(T) = R25 \u00d7 exp[B \u00d7 (1\/T - 1\/T25)], where B = 4250K is the material constant. At 25\u00b0C the resistance is 10k\u03a9, dropping to approximately 3.9k\u03a9 at 50\u00b0C and 0.54k\u03a9 at 100\u00b0C. This predictable resistance-temperature characteristic enables temperature measurement by reading the thermistor resistance through a voltage divider and ADC.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal 1<\/td>Passive<\/td>One end of NTC element; connect to bias voltage divider<\/td><\/tr>\n
      2<\/td>Terminal 2<\/td>Passive<\/td>Other end of NTC element<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Lithium battery pack temperature monitoring for over-temperature charge\/discharge cutoff<\/li>\n
      • Smartphone CPU\/GPU temperature sensing for thermal throttling control<\/li>\n
      • LCD module contrast compensation by adjusting bias voltage with temperature<\/li>\n
      • TCXO (Temperature Compensated Crystal Oscillator) frequency correction feedback<\/li>\n
      • Home appliance motor over-temperature protection and shutdown<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        TDK<\/td>NTCG164BH103JT1<\/td>0603<\/td>10k\u03a9 NTC, B=4250K<\/td><\/tr>\n
        Murata<\/td>NCP18XH103F03RB<\/td>0603<\/td>10k\u03a9 NTC, B=3380K<\/td><\/tr>\n
        Vishay<\/td>NTCS0603E3103FMT<\/td>0603<\/td>10k\u03a9 NTC, B=3977K<\/td><\/tr>\n
        SEMITEC<\/td>103AT-4<\/td>0603<\/td>10k\u03a9 NTC, B=3435K<\/td><\/tr>\n
        Ametherm<\/td>ACC-003-004<\/td>0603<\/td>10k\u03a9 NTC<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10974"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10974\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10974"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10974"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}