{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5901LBEUT-T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5901LBEUT-T","canonicalUrl":"https://icboms.com/analog-devices/MAX5901LBEUT-T","factsUrl":"https://icboms.com/api/mcp/products/MAX5901LBEUT-T","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices Simple Swapper™ Hot Swap Controller, MAX5901LBEUT-T, -9V to -100V supply, 500 µA quiescent, SOT-23-6, Bulk.","salesMarkdown":"## What this part does on the board The MAX5901LBEUT-T is a hot swap controller from the Simple Swapper series, designed to manage inrush current and protect downstream circuitry when a board is plugged into a live backplane. It handles negative supply rails from -9V down to -100V, which is the headline spec that decides fit — most hot swap controllers top out at -48V or -80V, so this one covers the higher-voltage telecom and industrial backplanes. The internal switch is integrated (no external MOSFET needed), and the controller draws just 500 µA from the supply rail. That quiescent current matters when the controller is always powered, monitoring the bus for faults — it won't eat into the load budget. ## Package and field replacement Housed in a SOT-23-6 package, the MAX5901LBEUT-T is small enough for tight layouts but still hand-solderable with a fine-tip iron. No hot-air station required — a rework tech can swap it on site with basic kit, as long as the board is clean and the pad layout matches the supplier device package footprint. Operating from -40°C to 85°C, it covers the industrial temperature band — networking cabinets, base stations, and outdoor telecom shelters see that range without issue. ## Protection features and programmability The controller packs a full set of programmable protections: auto retry, circuit breaker, current limit, fault timeout, latched fault, slew rate control, and undervoltage lockout (UVLO). The auto retry and latched fault options let you choose whether the part resets after a fault or stays off until manually cleared — a decision that depends on the system's fault-recovery philosophy. Thermal limit is built in, so if the die temperature climbs during a sustained fault, the controller shuts itself down before damage occurs. That's a reliability feature, not just a protection one — it saves the board from a cascade failure. ## Sourcing and compliance reality One important flag: this part is RoHS non-compliant. If your assembly line is lead-free only, you will need a waiver or a separate reflow profile for tin-lead solder. The SOT-23-6 package is small enough that a manual soldering station with leaded solder is a practical field fix, but the BOM line must account for the non-RoHS status.","metaTitle":"MAX5901LBEUT-T Hot Swap Controller, -9V to -100V, SOT-23-6","metaDescription":"MAX5901LBEUT-T Analog Devices Simple Swapper hot swap controller, -9V to -100V supply, 500 µA quiescent, SOT-23-6. Active production, available to order.","metaKeywords":null},"attributes":{"series":"Simple Swapper™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Hot Swap Controller","Series":"Simple Swapper™","Package":"Bulk","Features":"Auto Retry, Fault Timeout, Latched Fault, Thermal Limit, UVLO","Applications":"Networking","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","lifecycle_stage":"eol_hot","Current - Supply":"500 µA","Voltage - Supply":"-9V ~ -100V","Internal Switch(s)":"Yes","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, Latched Fault, Slew Rate, UVLO","Supplier Device Package":"SOT-23-6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.83","stockQuantity":0,"priceTiers":[{"qty":164,"price":"$1.83000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/999ad8ddc5b5f69cff4770c683284b52.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX5901LBEUT-T used for?","answer":"It is a hot swap controller for negative-voltage rails (-9V to -100V), primarily in networking equipment where boards are hot-plugged into a live backplane. It limits inrush current and provides programmable fault protection (circuit breaker, current limit, UVLO, thermal shutdown) so the downstream circuitry survives insertion events."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5901LBEUT-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5901LBEUT-T 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}}