{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL0638R2","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL0638R2","canonicalUrl":"https://icboms.com/onsemi/HCPL0638R2","factsUrl":"https://icboms.com/api/mcp/products/HCPL0638R2","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL0638R2 dual-channel optoisolator, 10 Mbps data rate, 3750 Vrms isolation, open-collector Schottky-clamped output, 8-SOIC surface-mount package, industrial temperature range.","salesMarkdown":"## Open-collector Schottky-clamped output and timing The HCPL0638R2: The output stage is an open-collector Schottky-clamped transistor that sinks up to 15 mA per channel — the Schottky clamp prevents the collector from saturating deeply, which keeps propagation delay short and repeatable at 75 ns max for both tpLH and tpHL. Rise and fall times are 17 ns and 5 ns typical respectively, so the output edges stay fast enough for 10 Mbps NRZ signalling without excessive duty-cycle distortion. Both input channels are on side 1 (2/0 configuration), meaning the LED drive is referenced to a single supply domain — the second channel does not require its own isolated power, saving board space in multi-channel isolation banks.","metaTitle":"onsemi HCPL0638R2 Optoisolator, 10 Mbps, 3750 Vrms, 8-SOIC","metaDescription":"onsemi HCPL0638R2 dual-channel optoisolator: 10 Mbps data rate, 3750 Vrms isolation, 10 kV/µs CMTI, open-collector Schottky-clamped output.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Data Rate":"10Mbps","Input Type":"DC","Output Type":"Open Collector, Schottky Clamped","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Channels":"2","Base Product Number":"HCPL0638","Voltage - Isolation":"3750Vrms","Operating Temperature":"-40°C ~ 85°C","Inputs - Side 1/Side 2":"2/0","Rise / Fall Time (Typ)":"17ns, 5ns","Supplier Device Package":"8-SOIC","Current - Output / Channel":"15 mA","Voltage - Forward (Vf) (Typ)":"1.75V (Max)","Current - DC Forward (If) (Max)":"-","Propagation Delay tpLH / tpHL (Max)":"75ns, 75ns","Common Mode Transient Immunity (Min)":"10kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5700","priceTiers":[{"qty":1,"price":"$3.75000","currency":"USD"},{"qty":10,"price":"$2.65300","currency":"USD"},{"qty":100,"price":"$2.17250","currency":"USD"},{"qty":500,"price":"$1.83148","currency":"USD"},{"qty":1000,"price":"$1.67992","currency":"USD"},{"qty":2500,"price":"$1.61045","currency":"USD"},{"qty":5000,"price":"$1.58483","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d87989943ba65496217d84f8b6494a2d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL0638R2/alternatives.json"},"ai":{"faq":[{"question":"What is the data rate and isolation rating of HCPL0638R2?","answer":"The HCPL0638R2 supports a 10 Mbps data rate with 3750 Vrms isolation. The common-mode transient immunity is a minimum of 10 kV/µs, which prevents output glitches in high-noise environments like motor drives and inverters."},{"question":"What output type does HCPL0638R2 use?","answer":"It uses an open-collector Schottky-clamped output. The Schottky clamp prevents deep saturation, keeping propagation delay under 75 ns and rise/fall times at 17 ns / 5 ns typical for clean 10 Mbps signalling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL0638R2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL0638R2 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}}