Bayanin Fasaha na Nunin LED na LTD-6740KD-06J - Tsayin Lamba 0.56-inch - AlInGaP Hyper Red - Ƙarfin Gaba 2.6V - Ƙarfin Wutar Lantarki 70mW - Takardun Fasaha na Hausa

1. Bayanin Samfur

LTD-6740KD-06J shine tsarin nunin diode mai haske (LED) mai lamba biyu, bakwai-sashe. Babban aikinsa shine samar da karatu mai tsafta da iya karantawa a cikin na'urorin lantarki daban-daban. Fasahar cibiyar tana amfani da kayan semiconductor na AlInGaP (Aluminum Indium Gallium Phosphide) don samar da hasken Hyper Red. Wannan tsarin kayan, wanda aka girma akan substrate na GaAs marar gani, an san shi da ingantaccen aiki da haske a yankin bakan ja. Na'urar tana da fuskar launin toka tare da alamun sassa fari, tana ba da bayyanar da ya bambanta sosai wanda ya dace da mu'amalar mai amfani.

1.1 Siffofi da Fa'idodi Masu Muhimmanci

An tsara nunin tare da siffofi da yawa na mai amfani da kuma mai da hankali kan aiki:

• Tsayin Lamba:0.56 inches (14.22 mm), yana ba da kyakkyawan gani.
• Daidaituwar Sashe:Ci gaba da daidaitaccen fitar da haske a kowane sashe yana tabbatar da daidaiton bayyanar harafi.
• Ingantaccen Wutar Lantarki:Ƙaramin buƙatun wutar lantarki, yana sa ya dace da aikace-aikacen da ke da baturi ko masu kula da makamashi.
• Aikin Gani:Babban haske da babban bambanci yana haɓaka iya karantawa a ƙarƙashin yanayin hasken muhalli daban-daban.
• Kusurwar Dubawa:Faɗin kusurwar dubawa yana ba da damar karanta nunin daga wuraren da ba su da axis.
• Amincewa:Ginin ƙwaƙƙwaran jiki yana ba da dogon rayuwar aiki da juriya ga girgiza da rawar jiki.
• Rarrabawa:Ana rarraba na'urori (bin) don ƙarfin haske, yana ba da damar daidaita haske a aikace-aikacen lambobi da yawa.
• Yin Biyayya ga Muhalli:Kunshin ba shi da gubar, yana bin umarnin RoHS (Ƙuntata Abubuwa Masu Haɗari).

1.2 Aikace-aikace da Kasuwa da Ake Nufi

Ana nufin wannan nunin don amfani a cikin kayan aikin lantarki na yau da kullun. Yankunan aikace-aikace na yau da kullun sun haɗa da kayan aikin sarrafa ofis (misali, lissafi, agogon tebur), na'urorin sadarwa, allunan kayan aiki, kayan aikin gida, da na'urorin lantarki na mabukaci inda ake buƙatar nuni mai tsafta. An tsara shi don aikace-aikacen da ake tsammanin babban aminci a ƙarƙashin daidaitattun yanayin aiki.

2. Ƙayyadaddun Fasaha da Fassarar Manufa

Wannan sashe yana ba da cikakken bincike na manufa game da sigogin lantarki da na gani na na'urar.

2.1 Matsakaicin Matsakaicin Matsakaici

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na iya faruwa ga na'urar. Ba a ba da shawarar aiki a ko sama da waɗannan iyakokin.

• Rushewar Wutar Lantarki Kowane Sashe:70 mW matsakaici. Wannan iyaka yana da mahimmanci don sarrafa zafi.
• Matsakaicin Halin Gaba Kowane Sashe:90 mA, amma kawai a ƙarƙashin yanayin bugun jini (1/10 aikin haɗin gwiwa, faɗin bugun jini 0.1ms). Wannan ƙimar na gajerun bugun jini ne, ba ci gaba da aiki ba.
• Ci gaba da Halin Gaba Kowane Sashe:An rage layi daga 25 mA a 25°C a ƙimar 0.28 mA/°C. Wannan yana nufin ƙarfin halin yanzu na ci gaba da raguwa yayin da yanayin muhalli (Ta) ya ƙaru don hana yin zafi sosai.
• Ƙarfin Lantarki Baya Kowane Sashe:5 V matsakaici. Wuce wannan na iya haifar da rushewar haɗin gwiwa.
• Yanayin Aiki & Ma'ajiyar Zazzabi:-35°C zuwa +105°C. An ƙididdige na'urar don kewayon zafin jiki na masana'antu.
• Zafin Solder:260°C na dakika 5, an auna 1/16 inch (kusan 1.6 mm) a ƙasan farfajiyar zama.

2.2 Halaye na Lantarki & Gani

Waɗannan sune sigogin aiki na yau da kullun da aka auna a Ta=25°C, suna ayyana aikin na'urar a ƙarƙashin yanayin al'ada.

• Matsakaicin Ƙarfin Hasken (Iv):320 ucd (ƙarami), 700 ucd (na al'ada) a halin yanzu na gaba (IF) na 1 mA. Wannan shine ma'aunin mahimmanci na haske.
• Matsakaicin Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsaw nm (typ) at IF=20mA, placing it in the Hyper Red region of the spectrum.
• Dominant Wavelength (λd): nm (typ). This is the wavelength perceived by the human eye.
• Forward Voltage per Chip (VF):.1V (min), 2.6V (typ) at IF=20mA. This parameter is essential for designing the current-limiting circuitry.
• Reverse Current per Segment (IR): µA (max) at VR=5V. This is a leakage current specification.
• Luminous Intensity Matching Ratio::1 (max) for segments within the same light area. This ensures visual consistency between segments.
• Cross Talk:≤ 2.50%. This specifies the amount of unintended light leakage between adjacent segments.

. Binning System Explanation

The datasheet indicates that devices are \"categorized for luminous intensity.\" This refers to a binning process where manufactured LEDs are sorted based on measured light output (Iv) at a standard test current (1mA). Devices falling within specific intensity ranges are grouped into bins. This allows designers to select parts from the same bin to ensure uniform brightness across all digits and segments in an assembly, avoiding a patchy or uneven display appearance. The specific bin code is marked on the module as \"Z\".

. Performance Curve Analysis

While the provided PDF excerpt mentions \"Typical Electrical / Optical Characteristics Curves,\" the specific graphs are not included in the text. Typically, such curves for an LED display would include:

• Relative Luminous Intensity vs. Forward Current (I-V Curve):Shows how light output increases with current, usually in a non-linear relationship. It helps determine the operating point for desired brightness.
• Forward Voltage vs. Forward Current:Illustrates the diode's I-V characteristic, crucial for driver design.
• Relative Luminous Intensity vs. Ambient Temperature:Demonstrates how light output decreases as junction temperature rises, highlighting the importance of thermal management.
• Spectral Distribution:A plot of relative intensity versus wavelength, showing the narrow bandwidth characteristic of AlInGaP LEDs centered around 650 nm.

. Mechanical and Package Information

.1 Package Dimensions

The display has a standard dual-digit seven-segment through-hole package. Key dimensional notes include:

• All dimensions are in millimeters with a general tolerance of ±0.25 mm unless specified otherwise.
• Pin length is specified (subject to revisions noted in the document). The recommended PCB hole diameter is 1.30 mm.
• Tolerances are provided for pin tip shift, foreign materials, bubbles in the segment, bending of the reflector, and surface ink contamination to define visual and mechanical quality.

.2 Pin Connection and Circuit Diagram

The device has an 18-pin configuration. It is acommon cathodetype, meaning the cathodes (negative terminals) of all LEDs for each digit are connected together internally. The internal circuit diagram shows two independent sets of seven segments plus a decimal point, one set for each digit. The pinout table clearly defines the function of each pin (e.g., Pin 1: Anode E for Digit 1, Pin 14: Common Cathode for Digit 1). Correct interpretation of this table is essential for proper PCB layout and multiplexing driver circuit design.

.3 Polarity and Marking

The module is marked with the Part Number (LTD-6740KD-06J), a Date Code in YYWW format, the Manufacturing Country, and the Bin Code (Z). Proper orientation during assembly is critical and can be determined from the pin-1 identifier on the package drawing.

. Soldering and Assembly Guidelines

.1 Soldering Profile

The datasheet provides specific soldering conditions to prevent thermal damage:

• Automatic Soldering:°C for 5 seconds, measured 1.6 mm (1/16 inch) below the seating plane.
• Manual Soldering:°C ±30°C for a maximum of 5 seconds.

Adhering to these time and temperature limits is crucial. Excessive heat or prolonged exposure can damage the plastic package, internal wire bonds, or the LED semiconductor material itself.

.2 Storage and Handling

While not explicitly detailed beyond the storage temperature range (-35°C to +105°C), standard ESD (Electrostatic Discharge) precautions should be observed when handling these devices. They should be stored in a dry, anti-static environment.

. Packaging and Ordering Information

The packing specification is hierarchical:

• Units per Tube: displays are packed in one tube.
• Tubes per Inner Carton: tubes, resulting in 600 units per inner carton.
• Tubes per Outer Carton: tubes, resulting in 2400 units per outer carton.

The primary part number for ordering isLTD-6740KD-06J. The suffix \"-06J\" likely denotes specific options such as right-hand decimal point placement, color (gray face/white segment), and possibly the intensity bin.

. Application Suggestions

.1 Typical Application Circuits

As a common cathode display, it is typically driven using a multiplexing technique. A microcontroller or dedicated driver IC sequentially activates each digit's common cathode (sinking current) while providing the appropriate segment anode data (sourcing current) for that digit. This method reduces the number of required I/O pins compared to static driving. External current-limiting resistors are mandatory for each segment anode (or a regulated current source) to set the forward current (IF) to the desired value, typically between 5-20 mA depending on the required brightness and power budget.

.2 Design Considerations

• Current Limiting:Always use series resistors. Calculate resistor value as R = (Vcc - VF) / IF, where VF is taken from the datasheet (e.g., 2.6V typ).
• Multiplexing Frequency:Use a refresh rate high enough to avoid visible flicker, typically above 60 Hz per digit.
• Peak Current in Multiplexing:When multiplexed with a duty cycle (DC), the instantaneous segment current can be higher than the average. Ensure the peak current does not exceed the Absolute Maximum Rating for Peak Forward Current (90 mA under specified conditions).
• Thermal Management:Ensure the PCB and overall design allow for heat dissipation, especially if operating near maximum ratings or in high ambient temperatures.

. Technical Comparison and Differentiation

The key differentiators of the LTD-6740KD-06J are its use ofAlInGaP Hyper Redtechnology and its specific mechanical/optical specifications. Compared to older GaAsP or GaP red LEDs, AlInGaP offers significantly higher luminous efficiency and brightness. Compared to other colors or technologies, the 650 nm Hyper Red wavelength provides a distinct, saturated red color. The 0.56-inch digit height, gray face/white segment combination, and common cathode configuration position it for specific readability and interface design requirements.

. Frequently Asked Questions (Based on Technical Parameters)

Q1: What is the difference between Peak Wavelength (650 nm) and Dominant Wavelength (639 nm)?

A1: Peak wavelength is the point of maximum power output in the spectrum. Dominant wavelength is the single wavelength that would produce the same color perception as the LED's output. For a monochromatic source like this red LED, they are close but not identical due to the shape of the human eye's sensitivity curve.

Q2: Can I drive this display with a 5V supply?

A2: Yes, but you must use a current-limiting resistor. For example, to achieve a typical IF of 20 mA with a VF of 2.6V using a 5V supply: R = (5V - 2.6V) / 0.02A = 120 Ohms. A standard 120Ω resistor would be suitable.

Q3: What does \"Luminous Intensity Matching Ratio ≤ 2:1\" mean?

A3: It means the brightest segment in a device will be no more than twice as bright as the dimmest segment within the same defined \"light area.\" This ensures visual uniformity.

Q4: Why is there a derating curve for continuous forward current?

A4: As temperature increases, the LED's ability to dissipate heat decreases. To prevent the junction temperature from exceeding safe limits, the maximum allowed continuous current must be reduced. The derating factor of 0.28 mA/°C provides the guideline for this reduction.

. Practical Design and Usage Case

Case: Designing a Simple Digital Voltmeter Readout

A designer is building a 2-digit DC voltmeter using a microcontroller with an ADC. The LTD-6740KD-06J is selected for its readability. The microcontroller will run a multiplexing routine. Two of its I/O pins are configured as open-drain outputs to sink current for the common cathodes (Digits 1 & 2). Eight other I/O pins (7 segments + 1 decimal point) are configured to source current through 150Ω resistors to the segment anodes. The software scans each digit at a 100 Hz rate, converting the measured voltage to BCD format and looking up the corresponding 7-segment pattern from a table to output to the anodes. The gray face provides good contrast in the well-lit lab environment.

. Operating Principle

An LED is a semiconductor diode. When a forward voltage exceeding its bandgap energy is applied across the p-n junction, electrons and holes recombine in the active region (the AlInGaP layer in this case). This recombination releases energy in the form of photons (light). The specific wavelength of the light (color) is determined by the bandgap energy of the semiconductor material. AlInGaP has a bandgap corresponding to red/orange light. In a seven-segment display, multiple individual LED chips are mounted in the pattern of the segments and electrically interconnected according to the pinout diagram.

. Technology Trends

While traditional through-hole seven-segment displays like this one remain relevant for many applications, the broader trend in display technology is towards surface-mount device (SMD) packages for automated assembly, higher density, and lower profile. There is also a trend towards integration, where the driver circuitry is combined with the display module. Furthermore, for numeric readouts, dot-matrix or fully integrated alphanumeric displays offer greater flexibility. However, the simplicity, robustness, high brightness, and excellent readability of discrete seven-segment LEDs ensure their continued use in instrumentation, industrial controls, and applications where a classic, highly legible numeric display is preferred.