{"product_id":"uln2001-3-channel-darlington-transistor-array-sop8-50v-500ma-flyback-diodes-10pack","title":"ULN2001 3-Channel Darlington Transistor Array IC — SOP-8, 50V 500mA, Flyback Diodes (10-Pack)","description":"\u003ch2\u003eULN2001 3-Channel Darlington Transistor Array IC — SOP-8, 50V \/ 500mA, Flyback Diodes (10-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eULN2001\u003c\/strong\u003e is a 3-channel NPN Darlington transistor array in SOP-8 package, designed to drive inductive loads such as relays, stepper motor coils, solenoid valves, and LED arrays directly from TTL or CMOS logic outputs. Built-in flyback diodes on each channel protect the IC from inductive voltage spikes, eliminating the need for external protection diodes. This 10-pack is ideal for prototyping stock and production use.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIC\u003c\/td\u003e\n\u003ctd\u003eULN2001 \/ ULN2001A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e3 (independent NPN Darlington pairs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Collector Voltage\u003c\/td\u003e\n\u003ctd\u003e50V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Collector Current\u003c\/td\u003e\n\u003ctd\u003e500mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Compatibility\u003c\/td\u003e\n\u003ctd\u003eTTL and CMOS logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlyback Diodes\u003c\/td\u003e\n\u003ctd\u003eBuilt-in (one per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVCE Saturation\u003c\/td\u003e\n\u003ctd\u003e~1V (at 350mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eULN2001 vs ULN2003 vs ULN2803\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIC\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eULN2001\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eSOP-8\u003c\/td\u003e\n\u003ctd\u003eCompact 3-channel SMD designs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eULN2003\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003eDIP-16 \/ SOP-16\u003c\/td\u003e\n\u003ctd\u003eStepper motor, 7-segment display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eULN2803\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eDIP-18 \/ SOP-18\u003c\/td\u003e\n\u003ctd\u003eHigh-channel-count relay arrays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose ULN2001?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSOP-8 package\u003c\/strong\u003e — compact SMD footprint for space-constrained PCBs\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBuilt-in flyback diodes\u003c\/strong\u003e — no external protection diodes needed for relay\/solenoid driving\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTTL\/CMOS compatible input\u003c\/strong\u003e — directly driven by Arduino, ESP32, STM32 GPIO\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e500mA per channel\u003c\/strong\u003e — sufficient for small relays and solenoids\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e10-pack value\u003c\/strong\u003e — ideal for prototyping and production stock\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRelay driver from Arduino \/ MCU GPIO\u003c\/li\u003e\n\u003cli\u003eStepper motor coil driver (3-phase)\u003c\/li\u003e\n\u003cli\u003eSolenoid valve driver\u003c\/li\u003e\n\u003cli\u003eLED array high-current driver\u003c\/li\u003e\n\u003cli\u003eDC motor driver (low current)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10 × ULN2001 SOP-8 Darlington Transistor Array IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991436185835,"sku":"\u003cnone\u003e","price":8.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/uln2001-sop8-three-channel-relay-driver-ic-chip.webp?v=1761879908","url":"https:\/\/keszoox.com\/products\/uln2001-3-channel-darlington-transistor-array-sop8-50v-500ma-flyback-diodes-10pack","provider":"Keszoox","version":"1.0","type":"link"}