{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PS2561D-1Y-V-H-A","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"PS2561D-1Y-V-H-A","canonicalUrl":"https://icboms.com/renesas/PS2561D-1Y-V-H-A","factsUrl":"https://icboms.com/api/mcp/products/PS2561D-1Y-V-H-A","rawCanonicalId":null},"summary":{"shortDescription":"NEPOC series, PS2561D-1Y-V-H-A, single-channel transistor-output optocoupler, 5000Vrms isolation, 80-160% CTR at 5mA, 80V Vce max, 50mA output, through-hole 4-DIP, -55°C to 110°C.","salesMarkdown":"## 5000Vrms isolation in a 4-DIP through-hole package The Renesas PS2561D-1Y-V-H-A is a single-channel transistor-output optocoupler from the NEPOC series, packaged in a through-hole 4-DIP (0.300\", 7.62mm) body. The through-hole DIP package is the traditional industrial standard — easier to hand-rework during prototyping or field repair, and preferred in high-vibration environments where a surface-mount joint might fatigue over time. The 7.62mm pin pitch matches standard 300-mil DIP footprints used across generations of industrial control boards. ## CTR range: 80% to 160% at 5mA forward current The current transfer ratio is specified as 80% minimum and 160% maximum, both measured at 5mA LED forward current. This is a relatively tight bin — it means the designer can count on at least 4mA of collector current from a 5mA LED drive, which is enough to saturate the output transistor and pull a logic input low or drive a low-speed relay coil through a resistor. The 1.2V typical forward voltage drop is standard for an IR LED. With a 50mA continuous output current rating and an 80V Vce maximum, this part can directly drive small relays, solid-state relays, or logic inputs without a buffer transistor in many cases. The 300mV Vce saturation at rated current keeps the on-state voltage drop low enough to not steal headroom from a 5V or 3.3V logic rail. ## Switching speed: 3µs rise, 5µs fall — for line-frequency and DC signals Rise and fall times are 3µs and 5µs typical, respectively. This limits the part to switching frequencies well below 100 kHz — think 50/60 Hz AC zero-crossing detection, DC bus voltage sensing, relay driver latching, or slow digital status signals. It is not intended for high-speed data isolation or serial communication links; for those, look at a digital isolator or a high-speed optocoupler with a logic output. ## Temperature range: -55°C to 110°C The wide range also gives headroom for self-heating in enclosed power supplies where ambient temperature plus internal dissipation could push the local temperature above 85°C.","metaTitle":"PS2561D-1Y-V-H-A NEPOC Optocoupler, 5000Vrms, 4-DIP","metaDescription":"PS2561D-1Y-V-H-A NEPOC single-channel transistor optocoupler. 5000Vrms isolation, 80-160% CTR at 5mA, 80V output. Through-hole 4-DIP.","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":"Through Hole","Package / Case":"4-DIP (0.300\\\", 7.62mm)","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-DIP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"160% @ 5mA","Current Transfer Ratio (Min)":"80% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.2V","Current - DC Forward (If) (Max)":"40 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.55","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.58000","currency":"USD"},{"qty":10,"price":"$0.37900","currency":"USD"},{"qty":100,"price":"$0.25070","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/429e70b23ba923430e8abbe3eb5cc678.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is PS2561D-1Y-V-H-A obsolete or end-of-life?","answer":"No. There is no EOL notice or last-time-buy window currently in effect."},{"question":"What is the current transfer ratio (CTR) of PS2561D-1Y-V-H-A?","answer":"This is a single-bin range, meaning the output collector current will be between 4mA and 8mA for a 5mA input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/PS2561D-1Y-V-H-A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/PS2561D-1Y-V-H-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}}