{"id":10599,"date":"2026-07-20T06:38:48","date_gmt":"2026-07-20T06:38:48","guid":{"rendered":"https:\/\/ic-vendor.com\/xzm2acr78w\/"},"modified":"2026-07-20T06:38:48","modified_gmt":"2026-07-20T06:38:48","slug":"xzm2acr78w","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/xzm2acr78w\/","title":{"rendered":"XZM2ACR78W"},"content":{"rendered":"

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

The XZM2ACR78W from SunLED is a surface-mount LED indicator designed for general illumination and status indication applications. The device features a compact SMD package with wide viewing angle and is available in a white color temperature. It is suitable for front panel indicators, backlighting, and general-purpose lighting in consumer and industrial products.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
LED \u989c\u8272<\/td>\nWhite<\/td>\n<\/tr>\n
Package Type<\/td>\nSMD (surface mount)<\/td>\n<\/tr>\n
Forward Voltage (Vf)<\/td>\n3.0V typical (at 20mA)<\/td>\n<\/tr>\n
Forward Current (If)<\/td>\n20 mA (continuous)<\/td>\n<\/tr>\n
Peak Current<\/td>\n50 mA (1\/10 duty, 0.1ms)<\/td>\n<\/tr>\n
Reverse Voltage (Vr)<\/td>\n5V<\/td>\n<\/tr>\n
Luminous Intensity<\/td>\nRefer to specific bin<\/td>\n<\/tr>\n
\u89c6\u89d2<\/td>\n120\u00b0 (typical)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Mounting<\/td>\n\u8868\u9762\u8d34\u88c5<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • White SMD LED in compact package<\/li>\n
  • Wide 120\u00b0 viewing angle for uniform illumination<\/li>\n
  • Low forward voltage: 3.0V typical<\/td>\n<\/tr>\n
  • 20 mA continuous forward current<\/li>\n
  • Suitable for reflow soldering process<\/li>\n
  • RoHS compliant (lead-free)<\/li>\n
  • High luminous efficiency for low-power applications<\/li>\n
  • Compatible with standard SMD pick-and-place assembly<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Front panel status indicators<\/li>\n
    • Backlighting for LCD displays and keypads<\/li>\n
    • General-purpose illumination<\/li>\n
    • Consumer electronics notifications<\/li>\n
    • Industrial equipment status lights<\/li>\n
    • Automotive interior lighting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The XZM2ACR78W from SunLED is a surface-mount LED indicator designed for general illumination and status indication applications. The device features a compact SMD package with wide viewing angle and is available in a white color temperature. It is suitable for front panel indicators, backlighting, and general-purpose lighting in consumer and industrial products. Key […]<\/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":[13,33],"tags":[1938],"chip_brand":[913],"class_list":["post-10599","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-led-driver-ics","tag-xzm2acr78w","chip_brand-sunled"],"acf":{"brief_explanation":"White SMD LED, 3.0V Vf, 20mA, 120\u00b0 viewing angle, surface mount","date_code":"","package_case":"SMD (surface mount)","in_stock":8900,"datasheet":"https:\/\/www.sunled.com\/products\/XZM2ACR78W.pdf","price":"$0.08 @ 1ku","product_introduction":"The XZM2ACR78W from SunLED is a white surface-mount LED designed for indication and general illumination applications. The device operates at a typical forward voltage of 3.0V with a continuous forward current of 20mA. The wide 120\u00b0 viewing angle ensures uniform light distribution, making it suitable for front panel indicators and backlighting applications. The SMD package is compatible with standard automated pick-and-place assembly and lead-free reflow soldering processes. The white color output makes it ideal for use as a status indicator, notification light, or general-purpose illumination source in consumer electronics, industrial equipment, and automotive interior applications.","working_principle":"The XZM2ACR78W operates through electroluminescence in a semiconductor junction:\n\n1. Light Generation: When forward current (20mA) flows through the LED PN junction, electrons in the conduction band recombine with holes in the valence band, releasing energy as photons. The semiconductor material determines the primary emission wavelength (blue for white LEDs).\n\n2. White Light Production: White LEDs use a blue GaN semiconductor die coated with a yellow phosphor layer (typically Ce:YAG). The blue light from the die excites the phosphor, which emits broad-spectrum yellow light. The combination of transmitted blue light and phosphor-emitted yellow light produces the perception of white light.\n\n3. Thermal Management: The LED junction temperature must be kept below the maximum rating for reliable operation and consistent light output. The SMD package provides thermal conduction through the PCB pads. At 20mA forward current and 3.0V forward voltage, the LED dissipates 60mW of power, requiring adequate PCB copper area for heat spreading.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Cathode<\/td>Terminal<\/td>Negative terminal (connect to ground via current limiting resistor)<\/td><\/tr>
      2<\/td>Anode<\/td>Terminal<\/td>Positive terminal (connect to supply via current limiting resistor)<\/td><\/tr><\/table>","application_scenarios":"
      • Front panel indicators: Wide 120\u00b0 viewing angle ensures visibility from multiple angles in consumer electronics front panels<\/li>
      • Backlighting: Low power (60mW) and compact SMD package suitable for LCD and keypad backlighting in portable devices<\/li>
      • Status notification: White LED provides high-contrast indication against dark bezels in industrial equipment and consumer products<\/li>
      • Automotive interior: Operating temperature range (-40\u00b0C to +85\u00b0C) and 3.0V forward voltage compatible with automotive interior lighting circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        SunLED<\/td>XZM2ACR57W<\/td>SMD<\/td>Similar series, different intensity<\/td><\/tr>
        Lite-On<\/td>LTW-2R3S5<\/td>0805<\/td>White, 3.2V, 20mA<\/td><\/tr>
        OSRAM<\/td>LW Q38E-Q1OO-5K8L-1<\/td>PLCC-2<\/td>White, high brightness<\/td><\/tr>
        Nichia<\/td>NSSW157AT-W1<\/td>0603<\/td>White, ultra-compact<\/td><\/tr>
        Kingbright<\/td>APT1608QWC\/D<\/td>0603<\/td>White, 3.2V<\/td><\/tr>
        Broadcom<\/td>ASMT-QTB0-0AA00<\/td>PLCC-4<\/td>White, high power<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10599","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10599"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10599\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10599"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}