{"product_id":"uln2803a-darlington-transistor-array-smd-high-voltage-high-current-driver","title":"ULN2803A Darlington Array SMD IC – High-Voltage High-Current Driver","description":"\n\u003ch2\u003eULN2803A Darlington Transistor Array – Reliable High-Voltage, High-Current Drive\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eULN2803A Darlington Transistor Array\u003c\/strong\u003e (SMD package) is a dependable eight-channel driver IC engineered for high-voltage and high-current switching applications. Whether you're working on relay drivers, stepper motor controllers, display panels, or embedded computer systems, this versatile chip delivers consistent performance in a compact surface-mount form factor.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e ULN2803A (2803 Darlington Array)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SMD (Surface Mount Device)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Current Rating:\u003c\/strong\u003e 500 mA per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e Up to 50 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Computer systems, motor drivers, relay interfaces, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the ULN2803A?\u003c\/h3\u003e\n\u003cp\u003eThe ULN2803A integrates eight NPN Darlington transistor pairs in a single IC, allowing you to drive multiple high-current loads simultaneously from low-level logic signals (TTL, CMOS, PMOS). Its wide operating temperature range makes it suitable for both indoor and light industrial environments, while the SMD footprint keeps your PCB designs slim and efficient.\u003c\/p\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRelay and solenoid drivers\u003c\/li\u003e\n  \u003cli\u003eStepper and DC motor control\u003c\/li\u003e\n  \u003cli\u003eLED and lamp arrays\u003c\/li\u003e\n  \u003cli\u003ePrinter and display drivers\u003c\/li\u003e\n  \u003cli\u003eEmbedded microcontroller output expansion\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose high-current switching circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × ULN2803A SMD Darlington Array IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for more electronics tools and accessories? Check out the \u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e for diagnosing circuit faults, or browse the \u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e for your workshop needs.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the ULN2803A Darlington Array used for?\u003c\/h4\u003e\n\u003cp\u003eA: The ULN2803A is an 8-channel Darlington transistor array commonly used to drive high-current loads such as relays, stepper motors, LEDs, solenoids, and display drivers from logic-level signals (TTL or CMOS). It is widely used in computer interface boards and embedded electronics projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What package type is this ULN2803A and what current can it handle?\u003c\/h4\u003e\n\u003cp\u003eA: This ULN2803A comes in an SMD (Surface Mount Device) package. Each channel is rated for up to 500 mA output current, with a maximum supply voltage of 50 V, making it suitable for a broad range of switching and driver circuit applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What operating temperature range does this IC support?\u003c\/h4\u003e\n\u003cp\u003eA: The ULN2803A SMD IC operates reliably across a temperature range of -40°C to +85°C, making it suitable for standard commercial and light industrial environments.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the ULN2803A Darlington Array used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ULN2803A is an 8-channel Darlington transistor array commonly used to drive high-current loads such as relays, stepper motors, LEDs, solenoids, and display drivers from logic-level signals (TTL or CMOS). 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Each channel is rated for up to 500 mA output current, with a maximum supply voltage of 50 V, making it suitable for a broad range of switching and driver circuit applications.\"}}, {\"@type\": \"Question\", \"name\": \"What operating temperature range does this IC support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ULN2803A SMD IC operates reliably across a temperature range of -40°C to +85°C, making it suitable for standard commercial and light industrial environments.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"ULN2803A Darlington Array SMD IC – High-Voltage High-Current Driver\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/uln2803a-darlington-transistor-array-smd-high-voltage-high-current-driver\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"1pcs","offer_id":44166625493079,"sku":"14:1254#1pcs","price":7.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S4fb42ee0c2e14fd09439a7c5b0f15874c.webp?v=1786741032","url":"https:\/\/axlcustomersupport.com\/products\/uln2803a-darlington-transistor-array-smd-high-voltage-high-current-driver","provider":"Axl","version":"1.0","type":"link"}