{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP2021-500E/MD","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP2021-500E-MD","canonicalUrl":"https://icboms.com/microchip/MCP2021-500E-MD","factsUrl":"https://icboms.com/api/mcp/products/MCP2021-500E%2FMD","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP2021-500E/MD LINbus Transceiver, Half-Duplex, 1/1 Drivers/Receivers, 6V-18V Supply, 175 mV Hysteresis, -40°C to +125°C, 8-VDFN Exposed Pad, Tube.","salesMarkdown":"The MCP2021-500E/MD is a LINbus transceiver from Microchip Technology, configured as a half-duplex interface with one driver and one receiver (1/1). It operates from a 6V to 18V supply rail, making it suitable for automotive and industrial 12V battery systems where the bus voltage can sag or rise during cranking and load-dump events. The receiver hysteresis is specified at 175 mV, providing noise immunity on the LIN bus against signal degradation from coupled interference in a harness. The part is supplied in tube packaging, consistent with prototype and low-to-medium volume assembly. For reel quantities, confirm the alternate order code with Microchip. ## Second-source and cross-reference considerations The closest functional peer is the MCP2022-500E/P, which shares the same LINbus protocol, half-duplex topology, 1/1 driver/receiver count, and 175 mV hysteresis, but is packaged in a through-hole PDIP rather than the surface-mount DFN. A board designed for the MCP2021-500E/MD (8-DFN) cannot accept the MCP2022-500E/P without a PCB respin due to the different footprint and mounting type (surface-mount vs through-hole).","metaTitle":"Microchip MCP2021-500E/MD LIN Transceiver, Half-Duplex","metaDescription":"Active LINbus transceiver, half-duplex 1/1, 6V-18V supply, -40°C to +125°C, 175 mV hysteresis. 8-VDFN exposed pad. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Transceiver","Duplex":"Half","Package":"Tube","Protocol":"LINbus","Mounting Type":"Surface Mount","Package / Case":"8-VDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"6V ~ 18V","Receiver Hysteresis":"175 mV","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-DFN (4x4)","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.11","priceTiers":[{"qty":1,"price":"$2.11000","currency":"USD"},{"qty":25,"price":"$1.73840","currency":"USD"},{"qty":100,"price":"$1.63500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4954a47dd94e7246dd9400ebb38e26a7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP2021-500E%2FMD/alternatives.json"},"ai":{"faq":[{"question":"Will MCP2021-500E/MD drop into a panel that was specified around MCP2022-500E/P without rewiring?","answer":"No. The MCP2022-500E/P is a through-hole PDIP package, while the MCP2021-500E/MD is a surface-mount 8-DFN. The footprints are incompatible without a PCB redesign."},{"question":"What compliance documentation does Microchip provide for MCP2021-500E/MD?","answer":"Microchip certifies the MCP2021-500E/MD as ROHS3 compliant. Standard documentation includes the datasheet, RoHS declaration, and material composition data available from Microchip's website or through your distributor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP2021-500E-MD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP2021-500E-MD 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}}