{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL2731M","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL2731M","canonicalUrl":"https://icboms.com/onsemi/HCPL2731M","factsUrl":"https://icboms.com/api/mcp/products/HCPL2731M","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL2731M dual-channel Darlington optoisolator, 8-DIP through-hole package, 5000 Vrms isolation, 500% minimum current transfer ratio at 1.6 mA input, -40°C to 100°C operating range.","salesMarkdown":"## Dual Darlington optoisolator with 5 kV isolation The HCPL2731M from onsemi is a dual-channel Darlington-output optoisolator in an 8-DIP through-hole package. It provides 5000 Vrms of galvanic isolation between a DC input and a Darlington transistor output, making it suitable for isolating logic signals in industrial controls, PLC I/O modules, and motor-drive interfaces. ## Current transfer ratio and drive requirements With a minimum current transfer ratio of 500% at 1.6 mA forward current, the Darlington output can sink up to 60 mA per channel while the input LED draws only 1.6 mA typical. ## Lifecycle and sourcing status","metaTitle":"HCPL2731M onsemi Optoisolator – 5 kV, Darlington, 8-DIP","metaDescription":"onsemi HCPL2731M dual-channel Darlington optoisolator, 5000 Vrms isolation, 500% min CTR, -40°C to 100°C, 8-DIP through-hole. Active production, ROHS3","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Darlington","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"2","Base Product Number":"HCPL2731","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-40°C ~ 100°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"18V","Supplier Device Package":"8-DIP","Current - Output / Channel":"60mA","Current Transfer Ratio (Max)":"-","Current Transfer Ratio (Min)":"500% @ 1.6mA","Voltage - Forward (Vf) (Typ)":"1.3V","Turn On / Turn Off Time (Typ)":"-","Current - DC Forward (If) (Max)":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1600","priceTiers":[{"qty":1,"price":"$2.16000","currency":"USD"},{"qty":10,"price":"$1.44000","currency":"USD"},{"qty":100,"price":"$1.10840","currency":"USD"},{"qty":500,"price":"$1.00192","currency":"USD"},{"qty":1000,"price":"$0.86102","currency":"USD"},{"qty":2000,"price":"$0.81406","currency":"USD"},{"qty":5000,"price":"$0.79527","currency":"USD"},{"qty":10000,"price":"$0.78275","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/646a30e661680f909facce39eb3cee6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL2731M/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL2731M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL2731M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}