{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL2531TSR2VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL2531TSR2VM","canonicalUrl":"https://icboms.com/onsemi/HCPL2531TSR2VM","factsUrl":"https://icboms.com/api/mcp/products/HCPL2531TSR2VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL2531TSR2VM dual-channel transistor-output optocoupler, 5000Vrms isolation, 19-50% CTR at 16mA, 8-SMD Gull Wing, -40°C to 100°C.","salesMarkdown":"## 5000Vrms isolation — dual-channel signal transfer across a safety barrier The HCPL2531TSR2VM is a dual-channel optocoupler from onsemi with a transistor output stage, rated for 5000Vrms isolation between input and output. This isolation rating suits applications requiring galvanic separation for safety or noise immunity — think PLC digital inputs, motor-drive feedback paths, or medical equipment where the barrier must withstand high-voltage transients without breakdown. Each channel drives up to 8 mA at a maximum output voltage of 20 V, with a current transfer ratio (CTR) ranging from 19% to 50% at a forward current of 16 mA. The CTR spread means the output side can sink enough current to drive a logic gate input or a small relay coil directly, but the minimum 19% figure sets the load-driving margin — if the downstream input requires 2 mA, the LED side must supply at least 10.5 mA to guarantee the output turns on across all units. ## 250 ns switching — fast enough for isolated serial data up to 2 MHz Typical turn-on time is 250 ns, turn-off 260 ns, giving a combined propagation delay around 500 ns. This supports isolated data rates up to roughly 2 MHz — adequate for isolating SPI clock lines, encoder pulse trains, or low-speed fieldbus signals like RS-485 at 1 Mbps. For faster protocols like 10 Mbps Ethernet or high-speed CAN, a digital isolator with CMOS outputs would be a better fit. The input is DC-coupled with a maximum forward current of 25 mA and a typical forward voltage of 1.45 V. The 8-SMD Gull Wing package (supplier device package 8-SMD) is a standard surface-mount footprint compatible with reflow soldering; the Gull Wing leads provide visual solder-joint inspection access. onsemi lists the HCPL2531TSR2VM as Active with no discontinuation notice. For a spare-parts storeroom or a production line, this means the part is still in the manufacturer's standard portfolio and can be ordered through authorized distribution without last-time-buy urgency.","metaTitle":"onsemi HCPL2531TSR2VM Optoisolator, 5000Vrms, Dual Channel","metaDescription":"onsemi HCPL2531TSR2VM dual-channel transistor-output optocoupler, 5000Vrms isolation, 19-50% CTR at 16mA, -40°C to 100°C. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"2","Base Product Number":"HCPL2531","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-40°C~100°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"20V","Supplier Device Package":"8-SMD","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)":"250ns, 260ns","Current - DC Forward (If) (Max)":"25 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6378","priceTiers":[{"qty":222,"price":"$1.35000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a11e6da3da17d1eee2b2215b815ab1b5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL2531TSR2VM/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL2531TSR2VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL2531TSR2VM 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}}