{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ULN2004AIN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ULN2004AIN","canonicalUrl":"https://icboms.com/texas-instruments/ULN2004AIN","factsUrl":"https://icboms.com/api/mcp/products/ULN2004AIN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ULx200xA NPN Darlington transistor array, 7 outputs, 500 mA per channel, 50 V max load, inverting input, through-hole 16-DIP package.","salesMarkdown":"The ULN2004AIN: ROHS3 compliant — no lead, no restricted substances per the latest EU directive. No special handling or exemption paperwork needed for shipping into regulated markets. ## Seven Darlington outputs — what 500 mA per channel actually drives Each of the seven outputs sinks up to 500 mA continuously with a 50 V maximum load voltage. That covers the vast majority of 24 V industrial relays, 12 V automotive relays, small solenoids, and indicator lamps you will encounter in a control panel or ECU. The input-to-output ratio is 1:1 — each of the seven inputs switches its corresponding output directly. No decoding, no multiplexing. The input is inverting: a logic high on the input turns the output on (sinks current to ground). This matches the typical microcontroller GPIO behaviour where an active-high signal drives the load. No external Vcc supply is required for the logic side — the base drive comes from the input signal itself. This simplifies the PCB layout: just route the GPIO lines and the load supply, no separate bias rail. ## Through-hole DIP-16 — field-swappable without a hot-air station On a customer site, you can pull the old part from a DIP socket and push in a fresh ULN2004AIN with no soldering, no hot air, no rework station. That is the difference between a 30-second swap and a board pull. The supplier device package is 16-PDIP — the standard through-hole plastic DIP. Pin 1 is clearly marked with a notch and a dot on the package body; orientation is unambiguous even under a flashlight in a dim equipment room. ## Industrial temperature range — -40 to 105 °C That is the full industrial temperature band — cold storage warehouses, unventilated enclosures next to a motor drive, engine-bay-adjacent electronics in off-highway vehicles. The Darlington outputs have enough thermal margin to run at 500 mA per channel at 85 °C ambient with reasonable derating.","metaTitle":"Texas Instruments ULN2004AIN Darlington Array, 7-Ch, 500mA","metaDescription":"Texas Instruments ULN2004AIN, 7-output NPN Darlington driver, 500 mA per channel, 50 V load max, DIP-16, active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"ULx200xA","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"ULx200xA","Package":"Tube","Interface":"Parallel","Input Type":"Inverting","Output Type":"NPN","Switch Type":"Relay, Solenoid Driver","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","Voltage - Load":"50V (Max)","lifecycle_stage":"eol_hot","Number of Outputs":"7","Output Configuration":"Low Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 105°C (TA)","Current - Output (Max)":"500mA","Supplier Device Package":"16-PDIP","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.70000","currency":"USD"},{"qty":10,"price":"$0.61200","currency":"USD"},{"qty":100,"price":"$0.46930","currency":"USD"},{"qty":500,"price":"$0.37100","currency":"USD"},{"qty":1000,"price":"$0.29680","currency":"USD"},{"qty":2000,"price":"$0.26898","currency":"USD"},{"qty":5000,"price":"$0.26250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9851e3dd5e7cce7afe0006658c1e779d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the ULN2004AIN used for?","answer":"It is a 7-channel NPN Darlington transistor array used to drive relays, solenoids, stepper motors, and indicator lamps from microcontroller GPIO. Each output sinks up to 500 mA at up to 50 V, and the input is inverting so a logic high turns the load on."},{"question":"What package does the ULN2004AIN come in?","answer":"The supplier device package is 16-PDIP. It fits standard DIP sockets for easy field replacement."},{"question":"What compliance documentation does Texas Instruments provide for the ULN2004AIN?","answer":"The ULN2004AIN is ROHS3 compliant, meaning it meets the latest EU restriction of hazardous substances directive. Texas Instruments provides the standard RoHS certificate of compliance and material declaration sheets through their documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ULN2004AIN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ULN2004AIN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}