{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX9742ETX+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX9742ETX","canonicalUrl":"https://icboms.com/analog-devices/MAX9742ETX","factsUrl":"https://icboms.com/api/mcp/products/MAX9742ETX%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX9742ETX+, Class D stereo audio amplifier, 20.5W x 2 @ 8Ω, 20V–40V supply, -40°C to 85°C, 36-TQFN exposed pad, ROHS3 compliant.","salesMarkdown":"## Class D stereo amplifier rated 20.5 W per channel into 8 Ω The Maxim Integrated MAX9742ETX+ is a Class D stereo audio amplifier delivering 20.5 W per channel into an 8 Ω load. It operates from a single 20 V to 40 V supply or a split ±10 V to ±20 V rail, suiting it for powered speakers, automotive audio, and industrial sound systems where efficiency and heat dissipation matter. The 36-TQFN (6x6 mm) exposed-pad package aids thermal management in compact enclosures. On-chip features include differential inputs, mute, shutdown, and short-circuit and thermal protection — reducing external component count for a clean BOM. ## 20.5 W per channel — what it means for your speaker load 20.5 W into 8 Ω per channel. Class D topology keeps quiescent losses low. ## Supply flexibility and temperature grade 20 V to 40 V single-supply or ±10 V to ±20 V split supply. Rated -40°C to 85°C ambient. ## Active lifecycle — no LTB risk for new designs Active lifecycle status and ROHS3 compliant. No last-time-buy or end-of-life notice.","metaTitle":"MAX9742ETX+ Class D Audio Amp, 20.5W x 2 @ 8Ω, 36-TQFN","metaDescription":"MAX9742ETX+ 20.5W x 2 @ 8Ω Class D stereo amplifier, 20V–40V supply, -40°C to 85°C, 36-TQFN. Active, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class D","Package":"Tube","Features":"Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown","Output Type":"2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"36-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"20V ~ 40V, ±10V ~ 20V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-TQFN (6x6)","Max Output Power x Channels @ Load":"20.5W x 2 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.11000","currency":"USD"},{"qty":10,"price":"$4.59300","currency":"USD"},{"qty":25,"price":"$4.34240","currency":"USD"},{"qty":100,"price":"$3.76350","currency":"USD"},{"qty":250,"price":"$3.57048","currency":"USD"},{"qty":500,"price":"$3.20380","currency":"USD"},{"qty":1000,"price":"$2.89500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7afb0cf8b74825d1e492f85ce796ae52.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of MAX9742ETX+?","answer":"The MAX9742ETX+ delivers 20.5 W per channel into an 8 Ω load in stereo mode."},{"question":"Is MAX9742ETX+ RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"Where can I buy MAX9742ETX+ and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the closest pin-compatible alternative to MAX9742ETX+?","answer":"Within the same Class D stereo amplifier family, parts like the MAX9744 share a similar 36-TQFN footprint and supply range, but verify the output power and feature set against your load requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX9742ETX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX9742ETX 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}}