{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"KSZ8893MBLI","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"KSZ8893MBLI","canonicalUrl":"https://icboms.com/microchip/KSZ8893MBLI","factsUrl":"https://icboms.com/api/mcp/products/KSZ8893MBLI","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology KSZ8893MBLI, 3-port Ethernet switch, 10/100 Base-FX/T/TX, I²C/SPI management, 3.1V–3.5V supply, 120 mA, -40°C to 85°C, 100-LFBGA tray","salesMarkdown":"## Three-port Ethernet switch with fiber support The KSZ8893MBLI is a 3-port managed Ethernet switch from Microchip that integrates three 10/100 Base-T/TX copper transceivers and one 10/100 Base-FX fiber interface. The management interface is I²C or SPI, selectable at reset, which keeps the host processor pin count low. Supply range is 3.1V to 3.5V, drawing 120 mA typical — about 400 mW on the 3.3V rail. The industrial temperature grade from -40°C to 85°C qualifies it for outdoor telecom cabinets, factory-floor Ethernet drops, and transportation equipment. ## Package and supply rail planning The 100-ball LFBGA has a 0.80 mm ball pitch — a 4-layer PCB with a solid ground plane under the BGA is recommended for signal integrity and thermal spreading. The 3.3V rail must supply 120 mA to the switch core plus any external magnetics and termination resistors. A local LDO or switching regulator with 3.3V output and at least 200 mA capability covers the switch plus margin. ## Active production — no obsolescence risk No end-of-life notification or last-time-buy window has been issued. ROHS3 compliant. For BOM planning, this part is single-sourced from Microchip. The 100-LFBGA package is not a common drop-in for other vendors' 3-port switches, so a layout change would be required for an alternative.","metaTitle":"KSZ8893MBLI Ethernet Switch – Microchip, 3-Port, 100-LFBGA","metaDescription":"Microchip KSZ8893MBLI 3-port Ethernet switch, 10/100 Base-FX/T/TX, I²C/SPI, -40°C to 85°C, 100-LFBGA. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Package":"Tray","Function":"Switch","Protocol":"Ethernet","Interface":"I²C, SPI","Standards":"10/100 Base-FX/T/TX","Package / Case":"100-LFBGA","lifecycle_stage":"eol_hot","Current - Supply":"120mA","Voltage - Supply":"3.1V ~ 3.5V","Operating Temperature":"-40°C ~ 85°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.52","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$14.52000","currency":"USD"},{"qty":25,"price":"$13.23000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c90d714cf4cde50f279e1f7ed6a8505b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the KSZ8893MBLI support fiber optic connections?","answer":"Yes, one of the three ports can operate in 10/100 Base-FX mode for fiber connections. The other two ports are 10/100 Base-T/TX copper. This makes the switch suitable for mixed-media links where one segment runs over fiber for distance or noise immunity."},{"question":"Is the KSZ8893MBLI compatible with 5V logic?","answer":"The supply voltage range is 3.1V to 3.5V. The I²C and SPI management pins are 3.3V-tolerant. If the host processor uses 5V logic, a level shifter is required on the management bus to avoid exceeding the absolute maximum ratings."},{"question":"What is the closest alternative to the KSZ8893MBLI?","answer":"Microchip's own KSZ8893MQL is a similar 3-port switch but in a 128-pin PQFP package — not pin-compatible with the 100-LFBGA. The KSZ8893MBLI's BGA package is unique in this family; a layout change is needed to use any alternative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/KSZ8893MBLI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/KSZ8893MBLI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:06:01.295Z","lastPublished":"2026-07-17T20:06:01.295Z","indexable":true}}