{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD4503BE","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD4503BE","canonicalUrl":"https://icboms.com/texas-instruments/CD4503BE","factsUrl":"https://icboms.com/api/mcp/products/CD4503BE","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 4000B series Buffer, Non-Inverting, Push-Pull output, Through Hole, 16-DIP (0.300\", 7.62mm), 3V ~ 18V supply, -55°C ~ 125°C, CD4503BE.","salesMarkdown":"## 16-DIP buffer with wide 3V-18V rail The CD4503BE: It operates across a 3V to 18V supply range, making it a straightforward choice for legacy 5V, 12V, or unregulated battery-powered logic rails where a single supply covers the whole board. That means it survives the thermal extremes of an engine bay, a cold-soaked avionics bay, or a downhole instrument without a grade bump — the same part number serves both the prototype and the qualified build. ## Two elements, six buffers total The CD4503BE contains two independent buffer elements: one with two bits, the other with four bits, for a total of six non-inverting channels. Because the outputs are push-pull, there is no pull-up resistor needed on the output side. The high and low drive currents are asymmetric (14.1 mA source vs 23 mA sink), which matters when the load is capacitive or when the fan-out to multiple CMOS inputs must stay within the DC budget.","metaTitle":"Texas Instruments CD4503BE Buffer, Non-Inverting, 3V-18V","metaDescription":"Texas Instruments CD4503BE, 4000B series buffer with non-inverting push-pull output. 3V to 18V supply, -55°C to 125°C range, 16-DIP package.","metaKeywords":null},"attributes":{"series":"4000B","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"4000B","Package":"Tube","Logic Type":"Buffer, Non-Inverting","Output Type":"Push-Pull","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 18V","Number of Elements":"2","Operating Temperature":"-55°C ~ 125°C (TA)","Supplier Device Package":"16-PDIP","Current - Output High, Low":"14.1mA, 23mA","Number of Bits per Element":"2, 4 (Hex)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.68","priceTiers":[{"qty":1,"price":"$0.68000","currency":"USD"},{"qty":10,"price":"$0.58000","currency":"USD"},{"qty":25,"price":"$0.54160","currency":"USD"},{"qty":100,"price":"$0.43330","currency":"USD"},{"qty":250,"price":"$0.40236","currency":"USD"},{"qty":500,"price":"$0.34048","currency":"USD"},{"qty":1000,"price":"$0.26309","currency":"USD"},{"qty":2500,"price":"$0.23988","currency":"USD"},{"qty":5000,"price":"$0.22440","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5173b9073e2f8d2ec187eee4be60eb9c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CD4503BE/alternatives.json"},"ai":{"faq":[{"question":"Will the CD4503BE drop into a board designed for the SN74LVC2G17QDCKRQ1?","answer":"No — the SN74LVC2G17 is a surface-mount SOT-23-6 package with a 1.65V to 5.5V supply and Schmitt-trigger inputs. The CD4503BE is a 16-pin through-hole DIP with a 3V to 18V rail and no Schmitt trigger. The packages, pinouts, and supply ranges are incompatible without a board spin."},{"question":"How can I order the CD4503BE or check availability?","answer":"Submit an RFQ for a firm quote and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD4503BE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD4503BE 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}}