{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL2531WV","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL2531WV","canonicalUrl":"https://icboms.com/onsemi/HCPL2531WV","factsUrl":"https://icboms.com/api/mcp/products/HCPL2531WV","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL2531WV dual-channel transistor output optocoupler, 2500Vrms isolation, 8-DIP through-hole package, DC input, 19-50% CTR @ 16mA.","salesMarkdown":"## Dual-channel isolation for digital signals The onsemi HCPL2531WV is a two-channel optocoupler with transistor outputs, packaged in an 8-DIP (0.400\", 10.16mm) through-hole body. It provides 2500Vrms galvanic isolation between a DC input LED and the phototransistor output — enough for basic safety isolation in industrial control and PLC I/O modules. Each channel's current transfer ratio (CTR) is specified between 19% and 50% at a forward current of 16mA, meaning the output transistor can sink at least 3mA when the LED is driven at 16mA. This CTR range gives the designer a predictable gain margin for logic-level translation across the isolation barrier. Switching is rated at 450ns turn-on and 300ns turn-off typical — fast enough for 1 MHz digital signals or PLC input debounce filtering, but not for high-speed data buses. The output can sink up to 8mA per channel at a maximum collector-emitter voltage of 20V. ## Lifecycle reality — obsolete but sourced onsemi lists the HCPL2531WV as obsolete. For existing BOM lines that require this exact dual-channel DIP-8 optocoupler, supply is available through independent distribution — quantities are confirmed at RFQ. The part operates over the full industrial temperature range of -55°C to 100°C, so it can serve in outdoor or factory-floor equipment where the ambient temperature swings widely. The through-hole DIP package is still common in legacy control boards and prototyping. No stock-holding claim is made — each order is sourced fresh. The part ships in Tube packaging, DC input type, transistor output. The supplier device package is 8-MDIP.","metaTitle":"onsemi HCPL2531WV Optocoupler, 2-Ch, 2500Vrms, DIP-8","metaDescription":"onsemi HCPL2531WV dual-channel transistor output optocoupler, 2500Vrms isolation, 19-50% CTR, -55°C to 100°C. Obsolete — sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.400\\\", 10.16mm)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"2","Base Product Number":"HCPL2531","Voltage - Isolation":"2500Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-55°C~100°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"20V","Supplier Device Package":"8-MDIP","Current - Output / Channel":"8mA","Current Transfer Ratio (Max)":"50% @ 16mA","Current Transfer Ratio (Min)":"19% @ 16mA","Voltage - Forward (Vf) (Typ)":"1.45V","Turn On / Turn Off Time (Typ)":"450ns, 300ns","Current - DC Forward (If) (Max)":"25 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0200","priceTiers":[{"qty":296,"price":"$1.02000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e07b6f9734be36d0f2f78a319d4ac031.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL2531WV/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to HCPL2531WV?","answer":"No official pin-compatible successor is recorded from onsemi. The base product number HCPL2531 covers the same dual-channel DIP-8 family; the WV suffix may indicate a specific lead-free or wide-body variant. For a drop-in replacement, verify the package dimensions and CTR range against your BOM."},{"question":"How do I get current pricing and availability for HCPL2531WV?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; current pricing and available quantities are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL2531WV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL2531WV when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:18:26.891Z","lastPublished":"2026-07-21T06:18:26.891Z","indexable":true}}