{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5903ABEUT+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5903ABEUTT","canonicalUrl":"https://icboms.com/analog-devices/MAX5903ABEUTT","factsUrl":"https://icboms.com/api/mcp/products/MAX5903ABEUT%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated Simple Swapper™ series, MAX5903ABEUT+T Hot Swap Controller, 1-channel, external N-channel MOSFET, 9V~72V supply, 1 mA supply current, SOT-23-6 package, -40°C ~ 85°C.","salesMarkdown":"## What this hot-swap controller does — and what it does not The Maxim Integrated MAX5903ABEUT+T is a single-channel hot-swap controller from the Simple Swapper™ family. It manages the inrush current and protects against overcurrent faults when a board is plugged into a live backplane. The part controls an external N-channel MOSFET — there is no internal switch, so you size the FET for your load current, not a fixed limit. Supply range covers 9V to 72V, which takes in 12V, 24V, and 48V telecom/industrial rails without a separate bias supply. The controller draws 1 mA from that rail. It is packaged in a SOT-23-6, surface-mount, and rated for -40°C to 85°C, so it fits outdoor telecom cabinets and factory-floor equipment. ## Fault handling: auto-retry, timeout, and thermal limit Three built-in protection features save you from adding a supervisor MCU. Auto-retry means the controller will attempt to restart after a fault clears — useful for transient overloads that clear on their own. Fault timeout prevents the MOSFET from staying on indefinitely during a sustained overcurrent event. Thermal limit shuts things down if the die temperature exceeds the safe operating area. These are hardwired behaviors; no firmware required. ## Programmable UVLO — set the brownout threshold yourself The undervoltage lockout (UVLO) threshold is programmable via external resistors. This lets you match the turn-on voltage to the downstream converter's minimum input, preventing the load from browning out when the backplane sags. No factory-programmed threshold to work around. ## Sourcing and lifecycle The MAX5903ABEUT+T is listed as Active and ROHS3 compliant. No end-of-life notice is on record.","metaTitle":"MAX5903ABEUT+T Hot Swap Controller, Simple Swapper™, 9V-72V","metaDescription":"MAX5903ABEUT+T hot swap controller from Maxim Integrated. 9V to 72V supply, SOT-23-6, industrial temp -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"Simple Swapper™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Hot Swap Controller","Series":"Simple Swapper™","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Auto Retry, Fault Timeout, Thermal Limit","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","lifecycle_stage":"eol_hot","Current - Supply":"1 mA","Voltage - Supply":"9V ~ 72V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"UVLO","Supplier Device Package":"SOT-6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.24000","currency":"USD"},{"qty":10,"price":"$5.60100","currency":"USD"},{"qty":25,"price":"$5.29480","currency":"USD"},{"qty":100,"price":"$4.58890","currency":"USD"},{"qty":250,"price":"$4.35360","currency":"USD"},{"qty":500,"price":"$3.90648","currency":"USD"},{"qty":1000,"price":"$3.29462","currency":"USD"},{"qty":2500,"price":"$3.12989","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/713d1ef949327f85a7d09d2ebea02c0f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does MAX5903ABEUT+T have an internal switch?","answer":"No, it does not have an internal switch. An external N-channel MOSFET must be added to handle the load current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5903ABEUTT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5903ABEUTT 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}}