{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HCPL2531VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"HCPL2531VM","canonicalUrl":"https://icboms.com/onsemi/HCPL2531VM","factsUrl":"https://icboms.com/api/mcp/products/HCPL2531VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi HCPL2531VM dual-channel transistor output optocoupler, 5000Vrms isolation, 8-DIP through-hole package, 19-50% CTR at 16mA, 250ns/260ns switching.","salesMarkdown":"## Dual-channel isolation in a through-hole DIP The onsemi HCPL2531VM is a dual-channel optocoupler with transistor output, packing two isolated channels into a single 8-DIP (0.300\", 7.62mm) through-hole package. It delivers 5000Vrms of galvanic isolation between the DC input side and the transistor output side, making it a straightforward choice for breaking ground loops or level-shifting signals in industrial control and power conversion circuits. The current transfer ratio (CTR) is specified as 19% minimum and 50% maximum at a forward current of 16mA. This means with 16mA through the LED, the output transistor can sink between about 3mA and 8mA (the 8mA per-channel output rating is the absolute ceiling). If your downstream logic input needs 5mA to pull low, you're fine with any unit above a 31% CTR — but a batch at the 19% floor would only deliver 3mA, so budget the minimum CTR into your worst-case pull-up resistor calculation. Turn-on and turn-off times are 250ns and 260ns typical, respectively. That's fast enough for isolating a 1MHz PWM signal or a serial data line running at a few hundred kHz, but not for high-speed communication like 10BASE-T or CAN FD at 5Mbps. The 8-DIP package keeps parasitic capacitance low — the isolation barrier itself is the speed limit, not the lead frame. ## Where it fits in a panel or on a board Through-hole DIP packages are still the go-to for prototyping, rework, and low-volume production where hand-soldering is a reality. The 0.300-inch body width fits standard breadboards and perfboards, and the 7.62mm pin row spacing matches the common DIP footprint. Operating from -40°C to 100°C, it covers most industrial cabinet environments — the 100°C ceiling is the limit for the LED junction, not the epoxy body.","metaTitle":"onsemi HCPL2531VM Optoisolator, 2-Ch, 5kV, 8-DIP","metaDescription":"onsemi HCPL2531VM dual-channel transistor output optocoupler, 5000Vrms isolation, 19-50% CTR at 16mA, 8-DIP through-hole package. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","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-DIP","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":"$2.9500","priceTiers":[{"qty":1,"price":"$2.95000","currency":"USD"},{"qty":10,"price":"$1.96400","currency":"USD"},{"qty":100,"price":"$1.51110","currency":"USD"},{"qty":500,"price":"$1.36600","currency":"USD"},{"qty":1000,"price":"$1.17391","currency":"USD"},{"qty":2000,"price":"$1.10988","currency":"USD"},{"qty":5000,"price":"$1.08427","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/755a87ef05b8a59d6251e4dd0d139dc6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/HCPL2531VM/alternatives.json"},"ai":{"faq":[{"question":"What does the 19-50% CTR range mean for my design?","answer":"At 16mA forward current, the output transistor can sink between 19% and 50% of that current — roughly 3mA to 8mA. Design your pull-up resistor and load so that the minimum CTR (19%) still guarantees a valid logic low; the maximum CTR (50%) just means the output saturates harder, which is fine."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/HCPL2531VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/HCPL2531VM 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}}