{"id":9544,"date":"2026-07-03T08:47:15","date_gmt":"2026-07-03T08:47:15","guid":{"rendered":"https:\/\/materialparts.com\/ltst-c191kskt\/"},"modified":"2026-07-03T08:47:15","modified_gmt":"2026-07-03T08:47:15","slug":"ltst-c191kskt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ltst-c191kskt\/","title":{"rendered":"LTST-C191KSKT"},"content":{"rendered":"

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

The LTST-C191KSKT from Lite-On is a yellow AlInGaP SMD chip LED with water-clear lens in a 0603 package. As the yellow variant alongside the red LTST-C191KRKT, it shares identical package, pinout, and electrical characteristics with 589 nm dominant wavelength for distinct visual signaling.<\/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
Color<\/td>\nYellow (AlInGaP)<\/td>\n<\/tr>\n
\u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u064a \u0627\u0644\u0645\u0647\u064a\u0645\u0646<\/td>\n584.5 – 597 nm<\/td>\n<\/tr>\n
Luminous Intensity<\/td>\n28-180 mcd @ 20mA (binned)<\/td>\n<\/tr>\n
\u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0645\u0634\u0627\u0647\u062f\u0629<\/td>\n130 deg<\/td>\n<\/tr>\n
Forward Voltage<\/td>\n1.8 V min \/ 2.4 V max @ 20mA<\/td>\n<\/tr>\n
Forward Current<\/td>\n30 mA (DC)<\/td>\n<\/tr>\n
Reverse Voltage<\/td>\n5 V<\/td>\n<\/tr>\n
\u062a\u0628\u062f\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629<\/td>\n75 mW<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n0603 (1608 Metric)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Yellow AlInGaP LED with 589 nm dominant wavelength<\/li>\n
  • 28-180 mcd binned luminous intensity<\/li>\n
  • 130-degree wide viewing angle<\/li>\n
  • Water-clear lens with tinted diffuser option<\/li>\n
  • Pin-compatible with LTST-C191KRKT (red version)<\/li>\n
  • Same 0603 footprint for multi-color designs<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Warning and caution indicator<\/li>\n
    • Traffic and status display<\/li>\n
    • Multi-color LED arrays (paired with red\/green variants)<\/li>\n
    • Consumer electronics notification LED<\/li>\n
    • Industrial panel status lights<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LTST-C191KSKT from Lite-On is a yellow AlInGaP SMD chip LED with water-clear lens in a 0603 package. As the yellow variant alongside the red LTST-C191KRKT, it shares identical package, pinout, and electrical characteristics with 589 nm dominant wavelength for distinct visual signaling. Key Specifications Color Yellow (AlInGaP) Dominant Wavelength 584.5 – 597 […]<\/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":[57,13],"tags":[786],"chip_brand":[179],"class_list":["post-9544","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","tag-ltst-c191kskt","chip_brand-gigadevice"],"acf":{"brief_explanation":"Yellow AlInGaP LED, 589nm, 0603, Lite-On","date_code":"","package_case":"0603 (1608 Metric, 1.6 x 0.8 x 0.55 mm)","in_stock":10164,"datasheet":"https:\/\/optoelectronics.liteon.com\/upload\/download\/DS22-2000-224\/LTST-C191KSKT.pdf","price":"$0.05 @ 1ku","product_introduction":"The LTST-C191KSKT from Lite-On is a yellow AlInGaP chip LED in a 0603 package. With 584.5-597 nm dominant wavelength and 130-degree viewing angle, it provides distinctive yellow indication. Pin-compatible with the red LTST-C191KRKT, both can coexist on the same PCB for multi-color status displays. The 1.8-2.4 V forward voltage range and 30 mA DC rating support direct logic-level drive with a series resistor.","working_principle":"The LTST-C191KSKT uses an AlInGaP epitaxial structure similar to the red LTST-C191KRKT, but with a modified active layer composition that shifts the emission wavelength to yellow (589 nm). The bandgap energy of the active region determines the emission wavelength; the yellow variant uses a slightly different Al\/Ga ratio compared to the red. The water-clear lens with optional tinted diffuser provides either a focused or diffused appearance. The LED is binned for both luminous intensity (N-R grades) and dominant wavelength (H-M sub-bins) to ensure color and brightness consistency in production.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Anode (+)<\/td>Input<\/td>Positive terminal<\/td><\/tr>\n
      2<\/td>Cathode (-)<\/td>Ground<\/td>Negative terminal, marked by green tint<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Warning and caution indicator<\/li>\n
      • Traffic and status display<\/li>\n
      • Multi-color LED arrays (paired with red\/green variants)<\/li>\n
      • Consumer electronics notification LED<\/li>\n
      • Industrial panel status lights<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Lite-On<\/td>LTST-C191KRKT<\/td>0603<\/td>Red version, same series<\/td><\/tr>\n
        Lite-On<\/td>LTST-C191KGKT<\/td>0603<\/td>Green version, same series<\/td><\/tr>\n
        Kingbright<\/td>APHHS1005QBDZGKC<\/td>0402<\/td>Yellow alternative in 0402<\/td><\/tr>\n
        Broadcom<\/td>HSMD-C190<\/td>0603<\/td>Yellow LED alternative<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9544","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=9544"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9544\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9544"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9544"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}