{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PS2561DL2-1Y-A","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"PS2561DL2-1Y-A","canonicalUrl":"https://icboms.com/renesas/PS2561DL2-1Y-A","factsUrl":"https://icboms.com/api/mcp/products/PS2561DL2-1Y-A","rawCanonicalId":null},"summary":{"shortDescription":"Renesas / NEPOC PS2561DL2-1Y-A single-channel transistor-output optocoupler, 5000Vrms isolation, 50% to 400% CTR at 5mA, 80V output max, 50mA output current, 3µs/5µs rise/fall, -55°C to 110°C, 4-SMD Gull Wing package.","salesMarkdown":"## 5000Vrms isolation — the rating that defines the part The Renesas NEPOC PS2561DL2-1Y-A is a single-channel transistor-output optocoupler rated for 5000Vrms of galvanic isolation. That isolation voltage is the headline spec — it tells you this part is built for reinforced insulation in industrial power supplies, motor drives, PLC digital inputs, and any application where a clean safety barrier between a low-voltage control side and a high-voltage power side is non-negotiable. The 4-SMD Gull Wing package keeps the creepage distance long enough to support that rating in a surface-mount assembly. ## CTR range — 50% to 400% at 5mA forward current The current transfer ratio spans 50% minimum to 400% maximum, both specified at 5mA LED forward current. That wide spread is typical for a standard-transistor optocoupler — you design the feedback loop or logic input around the minimum CTR to guarantee operation over temperature and LED aging. The 1.2V typical forward voltage and 40mA absolute-max forward current define the LED drive budget; a 5mA drive is a safe operating point that keeps the LED well within its ratings while delivering enough photocurrent to saturate the output transistor. ## Output ratings — 80V, 50mA, 300mV saturation The output transistor can handle up to 80V collector-emitter and 50mA continuous current, with a maximum saturation voltage of 300mV. That combination makes it suitable for driving a relay coil, a logic gate input, or a DC load in an I/O module. The 3µs rise and 5µs fall times (typical) cap the useful switching speed — this is not a high-speed digital isolator; it is a robust, slow-switching part for 50/60 Hz line-frequency signals, status feedback, or slow digital buses like a few hundred hertz PLC inputs. ## Temperature range — -55°C to 110°C operating Rated for -55°C to 110°C operating temperature, this optocoupler covers industrial, outdoor telecom, and automotive cabin environments without needing a commercial-grade derating. The wide range also simplifies BOM consolidation — one isolation part for a product line that ships into both heated factories and unheated enclosures. ## Lifecycle and compliance — active, ROHS3 The NEPOC series is Renesas's optocoupler family; the PS2561DL2-1Y-A is a single-channel, DC-input, transistor-output variant in the surface-mount Gull Wing package.","metaTitle":"PS2561DL2-1Y-A NEPOC Optocoupler, 5000Vrms, 50-400% CTR","metaDescription":"PS2561DL2-1Y-A NEPOC single-channel transistor-output optocoupler, 5000Vrms isolation, 50-400% CTR at 5mA, -55°C to 110°C, 4-SMD Gull Wing. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"NEPOC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Series":"NEPOC","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C ~ 110°C","Rise / Fall Time (Typ)":"3µs, 5µs","Voltage - Output (Max)":"80V","Supplier Device Package":"4-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"400% @ 5mA","Current Transfer Ratio (Min)":"50% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.2V","Current - DC Forward (If) (Max)":"40 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.94000","currency":"USD"},{"qty":10,"price":"$0.61500","currency":"USD"},{"qty":100,"price":"$0.40280","currency":"USD"},{"qty":1000,"price":"$0.33400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3e3a0a88fa6792e6a36afdbec1b11905.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio of PS2561DL2-1Y-A?","answer":"The current transfer ratio is 50% minimum to 400% maximum, both specified at 5mA forward current. Design around the 50% minimum to guarantee operation over temperature and LED aging."},{"question":"Does PS2561DL2-1Y-A meet 5000Vrms isolation?","answer":"Yes, the PS2561DL2-1Y-A is rated for 5000Vrms isolation, making it suitable for reinforced insulation in industrial and power-supply applications."},{"question":"Is PS2561DL2-1Y-A RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/PS2561DL2-1Y-A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/PS2561DL2-1Y-A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}