{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL0638","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL0638","canonicalUrl":"https://icboms.com/onsemi/HCPL0638","factsUrl":"https://icboms.com/api/mcp/products/HCPL0638","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL0638 dual-channel optoisolator, 10 Mbps data rate, 3750 Vrms isolation, open-collector Schottky-clamped output, 8-SOIC package, tube.","salesMarkdown":"## Parametric fit for isolated digital links The onsemi HCPL0638 is a dual-channel optoisolator rated for 10 Mbps data throughput with 3750 Vrms galvanic isolation — fast enough for most industrial fieldbus and PLC digital I/O isolation, with margin for a 75 ns propagation delay budget per channel. Common-mode transient immunity is specified at 10 kV/µs minimum — this is the figure that determines whether the isolator holds its state when a motor drive or inverter switches a high dV/dt across the isolation barrier. ## Timing and signal integrity Rise and fall times are 17 ns and 5 ns typical respectively, which together with the 75 ns max propagation delay define the channel's pulse-width distortion — a factor when the downstream receiver expects a minimum pulse width at the rated data rate. The 2/0 input-side configuration means both channels are driven from the same input side, with no reverse-direction channel — suitable for unidirectional data or control signals where the return path is handled by a separate isolator or a common ground reference on the output side. Housed in an 8-SOIC narrow-body package (3.90 mm body width), the HCPL0638 fits the standard SOIC-8 footprint used across the HCPL06 family — the same land pattern serves multiple speed and channel-count variants without a layout change. The base product number HCPL06 covers a family of dual-channel optoisolators with varying speed and output options; the HCPL0638 sits at the 10 Mbps performance tier with Schottky-clamped open-collector output.","metaTitle":"onsemi HCPL0638 Optoisolator, 10Mbps, 3750Vrms, 8-SOIC","metaDescription":"onsemi HCPL0638 dual-channel optoisolator, 10 Mbps data rate, 3750 Vrms isolation, open-collector Schottky-clamped output. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","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":"HCPL06","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":"$4.1200","priceTiers":[{"qty":1,"price":"$4.12000","currency":"USD"},{"qty":10,"price":"$2.91700","currency":"USD"},{"qty":100,"price":"$2.38880","currency":"USD"},{"qty":500,"price":"$2.01378","currency":"USD"},{"qty":1000,"price":"$1.84712","currency":"USD"},{"qty":2000,"price":"$1.77074","currency":"USD"},{"qty":5000,"price":"$1.74257","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d87989943ba65496217d84f8b6494a2d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL0638/alternatives.json"},"ai":{"faq":[{"question":"What is the HCPL0638's data rate and what does it mean for my design?","answer":"The HCPL0638 is rated for 10 Mbps with a 75 ns max propagation delay. At this speed it can handle most industrial fieldbus isolation (Profibus, DeviceNet at 500 kbps, CAN at 1 Mbps) with margin, but for 100 Mbps Ethernet or high-speed serial links you would need a faster isolator."},{"question":"What package does the HCPL0638 come in?","answer":"The HCPL0638 is supplied in an 8-SOIC narrow-body package (3.90 mm width) in tube packaging. The same SOIC-8 footprint is shared across the HCPL06 family, so a single PCB land pattern supports multiple speed variants."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL0638","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL0638 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}}