{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TEA1733T/N1,118","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"TEA1733T-N1118","canonicalUrl":"https://icboms.com/nxp/TEA1733T-N1118","factsUrl":"https://icboms.com/api/mcp/products/TEA1733T%2FN1%2C118","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors GreenChip™ flyback controller, TEA1733T/N1,118, 66.5 kHz switching, 75 W, 8-SOIC surface mount, isolated output.","salesMarkdown":"## 66.5 kHz switching — what it means for transformer and filter design The TEA1733T/N1,118 is a GreenChip flyback controller from NXP, switching at a fixed 66.5 kHz. That frequency sits below the 150 kHz AM radio band, so the EMI filter design is simpler — you can get through conducted emissions testing without a multi-stage LC filter on the input. The transformer core size is a trade-off: at 66.5 kHz you need a slightly larger ferrite than a 100 kHz design, but the switching losses in the external MOSFET are lower, which matters when the junction temperature is already pushing 150 °C. ## 75 W power ceiling — where this controller fits in a supply design Rated for 75 W in a flyback topology, this controller covers the sweet spot for auxiliary and bias supplies in industrial gear — think 24 VDC panel power, gate-drive bias rails, or IoT gateway PSUs. The 72% duty cycle limit gives the transformer reset time, so you can run at a reasonable input voltage range without saturating the core. Output isolation is built into the control scheme, meaning the feedback loop crosses the isolation barrier through an optocoupler or a digital isolator. ## Fault protection set — what is covered and what is not The TEA1733T/N1,118 integrates current limiting, over-power protection, over-temperature shutdown, and over-voltage protection. That covers the four failure modes that kill an offline supply: a shorted output, a load dump that pushes the feedback loop past its limit, a fan failure that cooks the board, and a feedback-loop open that sends the output rail above the rated voltage. There is no under-voltage lockout hysteresis on the Vcc pin — the startup threshold is 20.6 V, and the controller runs down to 12.2 V before it resets. ## Package and field-rework reality No thermal pad underneath, so a standard soldering iron or hot-air pencil works — no bottom-side preheat required. The part is marked with the full order code, so orientation is obvious from the pin-1 dot. ## Active lifecycle and compliance posture It is ROHS3 compliant, so it passes the EU RoHS exemption list without any of the restricted substances.","metaTitle":"TEA1733T/N1,118 NXP GreenChip Flyback Controller, 66.5 kHz","metaDescription":"NXP TEA1733T/N1,118 GreenChip flyback controller, 66.5 kHz switching, 75 W, 8-SOIC. Active production, ROHS3. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"GreenChip™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"GreenChip™","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Flyback","Duty Cycle":"72%","Mounting Type":"Surface Mount","Power (Watts)":"75 W","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting, Over Power, Over Temperature, Over Voltage","Output Isolation":"Isolated","Internal Switch(s)":"No","Voltage - Start Up":"20.6 V","Frequency - Switching":"66.5kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"8-SO","Voltage - Supply (Vcc/Vdd)":"12.2V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.94000","currency":"USD"},{"qty":25,"price":"$0.89240","currency":"USD"},{"qty":100,"price":"$0.73310","currency":"USD"},{"qty":250,"price":"$0.68532","currency":"USD"},{"qty":500,"price":"$0.60564","currency":"USD"},{"qty":1000,"price":"$0.47813","currency":"USD"},{"qty":2500,"price":"$0.44626","currency":"USD"},{"qty":5000,"price":"$0.42395","currency":"USD"},{"qty":12500,"price":"$0.40801","currency":"USD"},{"qty":25000,"price":"$0.39526","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c5b273f059a5965cbdeae474d2b0511f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the switching frequency of the TEA1733T/N1,118?","answer":"The controller switches at a fixed 66.5 kHz. This frequency is below the AM radio band, simplifying EMI filter design."},{"question":"What package does the TEA1733T/N1,118 come in?","answer":"The supplier device package is 8-SO."},{"question":"What compliance documentation does NXP provide for the TEA1733T/N1,118?","answer":"The part is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/TEA1733T-N1118","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/TEA1733T-N1118 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}