{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PS9821-1-F3-AX","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"PS9821-1-F3-AX","canonicalUrl":"https://icboms.com/renesas/PS9821-1-F3-AX","factsUrl":"https://icboms.com/api/mcp/products/PS9821-1-F3-AX","rawCanonicalId":null},"summary":{"shortDescription":"Renesas NEPOC series PS9821-1-F3-AX, 1-channel DC-input optocoupler, 15Mbps data rate, open-collector output, 2500Vrms isolation, 15kV/µs CMTI, 8-SSOP package, -40°C to 85°C.","salesMarkdown":"## 15 Mbps open-collector optocoupler for industrial isolation The Renesas PS9821-1-F3-AX is a single-channel, DC-input optocoupler from the NEPOC series with an open-collector output rated for 15 Mbps data rate and 2500 Vrms isolation. Key distinguishing features include a 15 kV/µs common-mode transient immunity (CMTI) and symmetrical 75 ns max propagation delays (tpLH / tpHL), making it suited for isolating high-speed digital signals in noisy industrial environments such as PLC I/O modules, motor drive interfaces, and fieldbus communication links. Data rate of 15 Mbps supports Profibus, DeviceNet, and other industrial fieldbuses running at 12 Mbps or lower. The open-collector output requires an external pull-up resistor to the receiver's supply rail; the 25 mA per-channel output current drives standard logic families or small relays directly. Isolation rating of 2500 Vrms covers basic insulation for 240 VAC mains-powered equipment. The 15 kV/µs CMTI ensures the output stays clean when the input side experiences fast voltage transients from IGBT switching or relay coil kickback — a common failure point in motor drives and inverters. Forward voltage (Vf) typical 1.65 V with a 20 mA max forward current means the LED side can be driven directly from a 3.3 V logic output through a current-limiting resistor. Rise/fall times of 20 ns and 5 ns respectively, combined with the 75 ns propagation delay, give enough timing margin for most 15 Mbps NRZ serial links. The 8-SSOP package (0.154\" body width) saves board space compared to DIP-8 optocouplers. ## Active lifecycle — no EOL risk for new designs This part is suitable for both new design-ins and ongoing production builds without supply-chain disruption.","metaTitle":"PS9821-1-F3-AX Optoisolator, 15Mbps, Open Collector, 8-SSOP","metaDescription":"PS9821-1-F3-AX NEPOC series 1-channel optocoupler: 15Mbps data rate, 2500Vrms isolation, 15kV/µs CMTI, open-collector output. Active, ROHS3. Available to order.","metaKeywords":null},"attributes":{"series":"NEPOC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Series":"NEPOC","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"15Mbps","Input Type":"DC","Output Type":"Open Collector","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 3.6V","Number of Channels":"1","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C ~ 85°C","Inputs - Side 1/Side 2":"1/0","Rise / Fall Time (Typ)":"20ns, 5ns","Supplier Device Package":"8-SSOP","Current - Output / Channel":"25 mA","Voltage - Forward (Vf) (Typ)":"1.65V","Current - DC Forward (If) (Max)":"20mA","Propagation Delay tpLH / tpHL (Max)":"75ns, 75ns","Common Mode Transient Immunity (Min)":"15kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.15000","currency":"USD"},{"qty":10,"price":"$2.22700","currency":"USD"},{"qty":100,"price":"$1.82410","currency":"USD"},{"qty":500,"price":"$1.53772","currency":"USD"},{"qty":1500,"price":"$1.41047","currency":"USD"},{"qty":3000,"price":"$1.35214","currency":"USD"},{"qty":7500,"price":"$1.32563","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5982c3b5051764b9472116a10298f6b2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is PS9821-1-F3-AX obsolete?","answer":"No. It is suitable for current production and new designs."},{"question":"What is the data rate of PS9821-1-F3-AX?","answer":"The PS9821-1-F3-AX is rated for a 15 Mbps data rate."},{"question":"What is the equivalent of PS9821-1-F3-AX?","answer":"Renesas does not list a direct pin-compatible second source for this NEPOC series part. For a higher-isolation alternative with push-pull output, consider the RV1S9161ACCSP-100C#KC0 (3750 Vrms, 100 kV/µs CMTI, -40°C to 125°C), but verify the output type and supply voltage differences against your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/PS9821-1-F3-AX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/PS9821-1-F3-AX 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}}