{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5901LBEUT","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5901LBEUT","canonicalUrl":"https://icboms.com/analog-devices/MAX5901LBEUT","factsUrl":"https://icboms.com/api/mcp/products/MAX5901LBEUT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated Simple Swapper™ series, Hot Swap Controller, MAX5901LBEUT, -9V to -100V supply, 500 µA supply current, SOT-23-6 package, Bulk.","salesMarkdown":"## Negative-rail hot swap for -48V telecom backplanes The MAX5901LBEUT is a single-channel hot swap controller from Maxim's Simple Swapper™ family, designed to manage inrush current and protect downstream circuitry when boards are inserted into a live backplane. Its supply range of -9V to -100V targets the -48V telecom rack standard, where a hot-swap controller must handle the full -36V to -72V nominal swing plus transients. The internal switch handles the pass element, so no external MOSFET is needed for the basic function — the part integrates the N-channel FET on-chip. ## Programmable protection and fault handling Programmable features include circuit breaker threshold, current limit, slew rate, UVLO, and fault timeout — the designer sets the inrush profile and overcurrent trip point with external resistors and a capacitor. On a fault, the part can be configured for auto-retry or latched shutdown, and a thermal-limit circuit protects the die if the junction temperature climbs during a sustained overcurrent event. Supply current is 500 µA typical, a low overhead for the -48V rail where the controller's own draw is negligible compared to the load. ## Active lifecycle and compliance note Note that this part is marked RoHS non-compliant — the lead-bearing finish is intentional for applications where tin-whisker risk is unacceptable, such as high-reliability telecom or aerospace assemblies.","metaTitle":"MAX5901LBEUT Hot Swap Controller, -9V to -100V, SOT-23-6","metaDescription":"MAX5901LBEUT Simple Swapper™ hot swap controller, -9V to -100V supply, 500 µA supply current, SOT-23-6. Active production, RoHS non-compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"Simple Swapper™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"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":"$2.79","stockQuantity":0,"priceTiers":[{"qty":108,"price":"$2.79000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/999ad8ddc5b5f69cff4770c683284b52.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX5901LBEUT used for?","answer":"It is a hot swap controller for negative-voltage rails, typically -48V telecom backplanes. It limits inrush current on board insertion and protects against overcurrent and short circuits with programmable fault response."},{"question":"Is the MAX5901LBEUT RoHS compliant?","answer":"No, it is listed as RoHS non-compliant. The lead-bearing finish is deliberate for applications where tin whisker mitigation is required."},{"question":"Does the MAX5901LBEUT need an external MOSFET?","answer":"No — the internal switch is integrated on-chip. The part handles the pass element itself, simplifying the BOM for single-channel hot swap designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5901LBEUT","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 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}}