{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD4049UBDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD4049UBDR","canonicalUrl":"https://icboms.com/texas-instruments/CD4049UBDR","factsUrl":"https://icboms.com/api/mcp/products/CD4049UBDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 4000B series hex inverter, CD4049UBDR, 6 circuits, 1 input per gate, 3V to 18V supply, 50ns prop delay at 15V/50pF, 4µA quiescent, -55°C to 125°C, 16-SOIC package.","salesMarkdown":"## What the 3V to 18V supply range buys the design The CD4049UBDR is a Texas Instruments 4000B-series hex inverter — six independent inverter gates in a single 16-SOIC package. Each gate draws a maximum 4µA quiescent current, so the part can sit on an always-on power domain without draining the backup battery. ## Output drive and fan-out — the asymmetry to budget for The output stage delivers 4.3mA sourcing and 24mA sinking. That 5.6:1 ratio means the CD4049UBDR can drive a heavier pull-down load than pull-up — useful when interfacing to open-drain buses or driving the base of an NPN transistor, but a constraint if you need symmetric drive into a terminated transmission line. The 50ns propagation delay at 15V and 50pF is the timing ceiling; at lower supply voltages the delay stretches, so a timing closure check is needed if the part runs at 5V in a 1MHz control loop. ## Package and footprint — what the SOIC-16 tells the layout The CD4049UBDR is supplied in a 16-SOIC body, 3.90mm width, surface-mount only. The 1.27mm pin pitch is standard for automated assembly and rework. No exposed pad — all six inverters dissipate through the leads and the board copper. ## Lifecycle and compliance — active, RoHS3, no LTB risk The date-code and marking should trace cleanly to TI's authorized chain — any lot with inconsistent laser etch or mismatched font on the package body warrants a decap check before accepting it on a production line.","metaTitle":"TI CD4049UBDR 4000B Inverter, 6 Circuits, 3V-18V, 16-SOIC","metaDescription":"CD4049UBDR is a Texas Instruments 4000B-series hex inverter in SOIC-16. 3V to 18V supply, -55°C to 125°C range, 4µA quiescent, 50ns prop delay.","metaKeywords":null},"attributes":{"series":"4000B","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"4000B","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"Inverter","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"1","Voltage - Supply":"3V ~ 18V","Number of Circuits":"6","Operating Temperature":"-55°C ~ 125°C","Input Logic Level - Low":"1V ~ 2.5V","Supplier Device Package":"16-SOIC","Input Logic Level - High":"4V ~ 12.5V","Current - Quiescent (Max)":"4 µA","Current - Output High, Low":"4.3mA, 24mA","Max Propagation Delay @ V, Max CL":"50ns @ 15V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.64","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.64000","currency":"USD"},{"qty":10,"price":"$0.55200","currency":"USD"},{"qty":25,"price":"$0.51520","currency":"USD"},{"qty":100,"price":"$0.41220","currency":"USD"},{"qty":250,"price":"$0.38280","currency":"USD"},{"qty":500,"price":"$0.32390","currency":"USD"},{"qty":1000,"price":"$0.25028","currency":"USD"},{"qty":2500,"price":"$0.22820","currency":"USD"},{"qty":5000,"price":"$0.21347","currency":"USD"},{"qty":12500,"price":"$0.20834","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cee5e635680f5c2543b21b033300d6fe.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CD4049UBDR obsolete?","answer":"TI continues to manufacture the 4000B series in SOIC-16."},{"question":"What is the difference between CD4049UBDR and CD4049UBE?","answer":"The CD4049UBE is the through-hole DIP-16 variant of the same die. The CD4049UBDR is the surface-mount SOIC-16 version. All electrical ratings — supply range, output drive, propagation delay, temperature grade — are identical between the two package options."},{"question":"Is CD4049UBDR RoHS compliant?","answer":"Yes — the lifecycle record confirms ROHS3 compliance. No lead, mercury, cadmium, or restricted phthalates above the exemption thresholds."},{"question":"Can CD4049UBDR replace CD4049UBE?","answer":"Yes — the same 4000B die in a different package. The SOIC-16 footprint replaces the DIP-16 on the board; all electrical specifications are shared. Layout must accommodate the smaller body and 1.27mm pitch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD4049UBDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD4049UBDR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}