{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN7405N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN7405N","canonicalUrl":"https://icboms.com/texas-instruments/SN7405N","factsUrl":"https://icboms.com/api/mcp/products/SN7405N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 7400 series, SN7405N, Hex Inverter with Open Collector outputs, 6 circuits, 1 input per circuit, 4.75V ~ 5.25V supply, 14-DIP (0.300\", 7.62mm) through-hole package, 0°C ~ 70°C operating temperature.","salesMarkdown":"## What the SN7405N is and where it fits The Texas Instruments SN7405N is a 7400-series hex inverter with open-collector outputs, packing six independent inverter gates into a single 14-pin DIP package. Each gate accepts one input and inverts it; the open-collector output means the high-side transistor is absent, so the output can sink current to ground but cannot source it — the load must pull up to a positive rail. ## Key ratings and what they mean for the design The open-collector output can sink up to 16 mA per channel when low, but the high-level current is zero — the external pull-up resistor determines the high-state voltage and the current sourced from the load supply. ## Lifecycle and sourcing posture ROHS3 compliance is confirmed, so it meets the latest EU restriction directive for lead and other substances. Because it is an active, standard-logic part, it is widely available through multiple distribution channels. No second-source alternate is listed in the official cross-reference data, but functionally equivalent hex inverters with open-collector outputs exist from other manufacturers — verify pin compatibility and timing before substituting.","metaTitle":"SN7405N Texas Instruments 7400 Hex Inverter, Open Collector","metaDescription":"SN7405N is a 7400-series hex inverter with open-collector outputs in a 14-DIP package. 6 circuits, 4.75–5.25 V supply, 55 ns propagation delay.","metaKeywords":null},"attributes":{"series":"7400","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Series":"7400","Package":"Tube","Features":"Open Collector","Logic Type":"Inverter","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Inputs":"1","Voltage - Supply":"4.75V ~ 5.25V","Number of Circuits":"6","Operating Temperature":"0°C ~ 70°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-PDIP","Input Logic Level - High":"2V","Current - Quiescent (Max)":"12 mA","Current - Output High, Low":"-, 16mA","Max Propagation Delay @ V, Max CL":"55ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.12","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.12000","currency":"USD"},{"qty":10,"price":"$1.90700","currency":"USD"},{"qty":25,"price":"$1.79920","currency":"USD"},{"qty":100,"price":"$1.53300","currency":"USD"},{"qty":250,"price":"$1.43948","currency":"USD"},{"qty":500,"price":"$1.25954","currency":"USD"},{"qty":1000,"price":"$1.04362","currency":"USD"},{"qty":2500,"price":"$1.01850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/42a89b0cd2ad29f9fe30bcfdc5d87a13.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for SN7405N?","answer":"No official manufacturer replacement or successor is listed for the SN7405N. For a pin-compatible drop-in, a functionally equivalent hex inverter with open-collector outputs from another vendor (e.g., NTE or onsemi) may work — verify timing and drive current against the 55 ns propagation delay and 16 mA sink rating before substituting."},{"question":"How many gates are in SN7405N?","answer":"The SN7405N contains six independent inverter gates, each with one input, in a single 14-pin package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN7405N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN7405N 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}}