{"id":2396,"date":"2026-05-19T09:10:30","date_gmt":"2026-05-19T09:10:30","guid":{"rendered":"https:\/\/materialparts.com\/ltst-c191tbkt-5a\/"},"modified":"2026-05-19T09:10:30","modified_gmt":"2026-05-19T09:10:30","slug":"ltst-c191tbkt-5a","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ltst-c191tbkt-5a\/","title":{"rendered":"LTST-C191TBKT-5A"},"content":{"rendered":"

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

LTST-C191TBKT-5A \u662f\u5149\u5b9d\u79d1\u6280\u5236\u9020\u7684\u4e00\u6b3e\u8d85\u8584 InGaN \u84dd\u8272 SMD LED\u3002\u8be5\u5668\u4ef6\u91c7\u7528\u7d27\u51d1\u578b 0603\uff081608 \u516c\u5236\uff09\u82af\u7247 LED \u5c01\u88c5\uff0c\u9ad8\u5ea6\u4ec5\u4e3a 0.55mm \u7684\u8d85\u8584\u5916\u5f62\uff0c\u5728 5mA \u7535\u6d41\u4e0b\u53ef\u63d0\u4f9b 15mcd \u7684\u5178\u578b\u53d1\u5149\u5f3a\u5ea6\uff0c\u4e3b\u8981\u6ce2\u957f\u4e3a 470nm \u81f3 475nm\u3002130 \u5ea6\u7684\u5bbd\u89c6\u89d2\u548c\u9632\u6c34\u900f\u955c\u4f7f\u5176\u6210\u4e3a\u7a7a\u95f4\u6709\u9650\u5e94\u7528\u4e2d\u80cc\u5149\u3001\u72b6\u6001\u6307\u793a\u548c\u901a\u7528\u7167\u660e\u7684\u7406\u60f3\u4e4b\u9009\u3002.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
LED \u989c\u8272<\/td>\n\u84dd\u8272\uff08\u6c2e\u5316\u9553\uff09<\/td>\n<\/tr>\n
\u4e3b\u5bfc\u6ce2\u957f<\/td>\n470 \u7eb3\u7c73\u81f3 475 \u7eb3\u7c73<\/td>\n<\/tr>\n
\u5cf0\u503c\u6ce2\u957f<\/td>\n468 \u7eb3\u7c73<\/td>\n<\/tr>\n
\u53d1\u5149\u5f3a\u5ea6\uff08\u5178\u578b\u503c\uff09<\/td>\n15mcd @ 5mA<\/td>\n<\/tr>\n
\u6b63\u5411\u7535\u538b\uff08\u5178\u578b\u503c\uff09<\/td>\n2.8V @ 5mA<\/td>\n<\/tr>\n
\u6b63\u5411\u7535\u538b\uff08\u6700\u5927\u503c\uff09<\/td>\n3.05V @ 5mA<\/td>\n<\/tr>\n
\u8fde\u7eed\u6b63\u5411\u7535\u6d41\uff08\u6700\u5927\u503c\uff09<\/td>\n20 \u6beb\u5b89<\/td>\n<\/tr>\n
\u5cf0\u503c\u6b63\u5411\u7535\u6d41\uff08\u6700\u5927\u503c\uff09<\/td>\n100\u6beb\u5b89\uff081\/10\u5360\u7a7a\u6bd4\uff0c0.1\u6beb\u79d2\u8109\u51b2\uff09<\/td>\n<\/tr>\n
\u529f\u7387\u8017\u6563\uff08\u6700\u5927\u503c\uff09<\/td>\n120mW<\/td>\n<\/tr>\n
\u89c6\u89d2<\/td>\n130\u00b0<\/td>\n<\/tr>\n
\u53cd\u5411\u7535\u6d41\uff08\u6700\u5927\u503c\uff09<\/td>\n100\u00b5A @ VR=5V<\/td>\n<\/tr>\n
\u5149\u8c31\u7ebf\u534a\u5bbd\u5ea6<\/td>\n25 \u7eb3\u7c73<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n0603\uff081.60 x 0.80 x 0.55 \u6beb\u7c73\uff09<\/td>\n<\/tr>\n
\u955c\u5934<\/td>\n\u6c34\u900f\u660e\uff0c\u957f\u65b9\u5f62<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-20\u00b0C\u81f3+80\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 0.55 \u6beb\u7c73\u8d85\u8584\u5916\u5f62\uff0c\u662f\u4f4e\u51c0\u7a7a\u8bbe\u8ba1\u7684\u7406\u60f3\u4e4b\u9009<\/li>\n
  • \u8d85\u4eae InGaN \u84dd\u82af\u7247 LED\uff0c\u5178\u578b\u5f3a\u5ea6\u4e3a 15mcd<\/li>\n
  • 130 \u5ea6\u5bbd\u89c6\u89d2\uff0c\u5b9e\u73b0\u5747\u5300\u7167\u660e<\/li>\n
  • \u7d27\u51d1\u578b 0603\uff081608 \u516c\u5236\uff09\u5c01\u88c5\uff0c\u9002\u5408\u8282\u7701\u7a7a\u95f4\u7684\u8bbe\u8ba1<\/li>\n
  • \u96c6\u6210\u7535\u8def\u4e0e\u4f4e 5mA \u6d4b\u8bd5\u7535\u6d41\u517c\u5bb9<\/td>\n<\/li>\n
  • \u7b26\u5408 RoHS \u89c4\u8303\uff0c\u7eff\u8272\u4ea7\u54c1<\/li>\n
  • \u4e0e\u81ea\u52a8\u8d34\u7247\u8bbe\u5907\u548c\u7ea2\u5916\u56de\u6d41\u710a\u63a5\u517c\u5bb9<\/li>\n
  • \u7528\u76f4\u5f84 7 \u82f1\u5bf8\u7684 8 \u6beb\u7c73\u78c1\u5e26\u5377\u4f9b\u5e94<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • \u7528\u4e8e LCD \u663e\u793a\u5c4f\u3001\u952e\u76d8\u548c\u5f00\u5173\u7684\u80cc\u5149\u706f<\/li>\n
    • \u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u4e2d\u7684\u72b6\u6001\u6307\u793a\u548c\u4fe1\u53f7 LED<\/li>\n
    • \u4fbf\u643a\u5f0f\u548c\u624b\u6301\u5f0f\u8bbe\u5907\u4e2d\u7684\u901a\u7528\u7167\u660e\u8bbe\u5907<\/li>\n
    • \u5de5\u4e1a\u8bbe\u5907\u524d\u9762\u677f\u6307\u793a\u706f<\/li>\n
    • \u6c7d\u8f66\u5185\u90e8\u7167\u660e\u548c\u4eea\u8868\u677f\u6307\u793a\u706f<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LTST-C191TBKT-5A is an ultra-thin InGaN blue SMD LED manufactured by Lite-On Technology. Packaged in a compact 0603 (1608 metric) chip LED package with an extra-thin profile of only 0.55mm height, this device delivers a typical luminous intensity of 15mcd at 5mA with a dominant wavelength of 470nm to 475nm. Its wide 130-degree […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,33],"tags":[],"chip_brand":[166],"class_list":["post-2396","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-led-driver-ics","chip_brand-everlight"],"acf":{"brief_explanation":"Ultra-thin InGaN blue SMD LED, 0603, 470nm dominant, 15mcd, 2.8V, 130\u00b0 viewing angle, 0.55mm height","date_code":"","package_case":"0603 (1.60 x 0.80 x 0.55 mm)","in_stock":5817,"datasheet":"https:\/\/optoelectronics.liteon.com\/upload\/download\/DS22-2003-020\/LTST-C191TBKT-5A.pdf","price":"$0.027 @ 5ku","product_introduction":"The LTST-C191TBKT-5A from Lite-On Technology is an ultra-thin InGaN blue chip LED designed for applications demanding compact form factors and reliable blue light emission. Featuring a dominant wavelength of 470nm to 475nm and a peak wavelength of 468nm, this LED delivers consistent blue color output with a typical luminous intensity of 15mcd at just 5mA forward current. The ultra-thin 0.55mm package height makes it particularly suitable for low-clearance and space-constrained designs such as thin-profile consumer electronics, wearable devices, and miniaturized instrumentation. The wide 130-degree viewing angle ensures uniform light distribution across the viewing area. Packaged in the industry-standard 0603 (1608 metric) footprint, the LTST-C191TBKT-5A is compatible with standard surface-mount assembly processes and automated pick-and-place equipment.","working_principle":"The LTST-C191TBKT-5A utilizes an InGaN (Indium Gallium Nitride) semiconductor chip as its light-emitting element. When forward-biased at a typical voltage of 2.8V, electrons in the InGaN active layer recombine with holes at the p-n junction, releasing energy as photons in the blue spectrum with a peak emission at 468nm. The water-clear rectangular lens encapsulates the chip and provides optical coupling with a wide 130-degree half-angle, ensuring broad and even light distribution. The device is designed for continuous operation at up to 20mA forward current, with a peak rating of 100mA for pulsed applications. The spectral line half-width of 25nm indicates a relatively narrow emission band, contributing to the vivid and saturated blue color appearance. Proper ESD handling precautions are recommended during assembly, as InGaN LEDs are sensitive to electrostatic discharge.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Anode (+)<\/td>Input<\/td>Positive terminal; connect to forward bias supply through current-limiting resistor<\/td><\/tr>
      2<\/td>Cathode (-)<\/td>Ground<\/td>Negative terminal; connect to circuit ground<\/td><\/tr><\/table>","application_scenarios":"
      • LCD display backlighting in smartphones, tablets, and portable electronics requiring thin-profile blue LEDs<\/li>
      • Status and indicator LEDs on consumer electronics front panels, routers, and set-top boxes<\/li>
      • Keypad and switch backlighting in industrial control panels and handheld instruments<\/li>
      • General illumination in wearable devices and fitness trackers with height constraints<\/li>
      • Interior automotive lighting including dashboard indicators and cabin ambient lighting<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Lite-On<\/td>LTST-C191TBKT<\/td>0603<\/td>Same LED, standard tape packaging without -5A suffix<\/td><\/tr>
        Samsung<\/td>SPHWH2D3N01YE4<\/td>0603<\/td>Blue LED, 470nm, similar form factor<\/td><\/tr>
        Kingbright<\/td>APHHS1005QBDZGKC<\/td>0402<\/td>Smaller footprint alternative, blue 470nm<\/td><\/tr>
        Rohm<\/td>SML-D12M1WT86<\/td>0603<\/td>Blue LED, 468nm, similar package<\/td><\/tr>
        Vishay<\/td>VLMU1500-GS08<\/td>0603<\/td>Blue LED, 470nm, comparable performance<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2396","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=2396"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2396\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2396"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}