{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL3700SDV","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL3700SDV","canonicalUrl":"https://icboms.com/onsemi/HCPL3700SDV","factsUrl":"https://icboms.com/api/mcp/products/HCPL3700SDV","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL3700SDV AC/DC to logic interface optocoupler, 1-channel Darlington output, 2500 Vrms isolation, 8-SMD Gull Wing package, Tape & Reel.","salesMarkdown":"## What makes this optocoupler different — AC/DC input on a single channel The HCPL3700SDV accepts both AC and DC inputs and converts them to a logic-level output through a Darlington stage, which means a single part can monitor a 50/60 Hz mains line or a 24 VDC control signal without external rectification or level shifting. Rated for 2500 Vrms isolation across an industrial temperature range of -40 to 85 °C, it fits applications where galvanic isolation between a high-voltage AC line and a low-voltage logic input is required — think PLC digital inputs, motor drive status feedback, or power supply monitoring. ## Switching speed and output drive — what the numbers mean for your BOM Turn-on time is 6 µs typical, turn-off 25 µs typical, with a 45 µs rise and 0.5 µs fall time. The 25 µs turn-off means the output stays high for roughly one cycle of a 50 Hz line after the input drops — fast enough for over-voltage detection but not for cycle-by-cycle current zero-crossing. ## Obsolete — sourcing reality for this optocoupler onsemi has marked the HCPL3700SDV as obsolete. Available through independent distribution channels — quantities are lot-specific and confirmed at RFQ. The 8-SMD Gull Wing package and Tape & Reel format mean the part is compatible with standard pick-and-place assembly, but any replacement will require a board-level qualification.","metaTitle":"onsemi HCPL3700SDV AC/DC Optocoupler, 2500 Vrms, Obsolete","metaDescription":"onsemi HCPL3700SDV AC/DC to logic interface optocoupler, 1-channel Darlington output, 2500 Vrms isolation, -40 to 85 °C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR)","Input Type":"AC, DC","Output Type":"Darlington","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"HCPL3700","Voltage - Isolation":"2500Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-40°C ~ 85°C","Rise / Fall Time (Typ)":"45µs, 0.5µs","Voltage - Output (Max)":"20V","Supplier Device Package":"8-SMD","Current - Output / Channel":"30mA","Current Transfer Ratio (Max)":"-","Current Transfer Ratio (Min)":"-","Voltage - Forward (Vf) (Typ)":"-","Turn On / Turn Off Time (Typ)":"6µs, 25µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2944","priceTiers":[{"qty":109,"price":"$2.77000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL3700SDV/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy HCPL3700SDV and how is it quoted?","answer":"Sourced through independent distribution against an RFQ."},{"question":"What is the input type and output configuration?","answer":"The HCPL3700SDV accepts both AC and DC input signals and provides a Darlington output — one channel, capable of sinking 30 mA at up to 20 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL3700SDV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL3700SDV when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:17:49.447Z","lastPublished":"2026-07-21T06:17:49.447Z","indexable":true}}