{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PS2533L-1-A","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"PS2533L-1-A","canonicalUrl":"https://icboms.com/renesas/PS2533L-1-A","factsUrl":"https://icboms.com/api/mcp/products/PS2533L-1-A","rawCanonicalId":null},"summary":{"shortDescription":"NEPOC PS2533L-1-A Darlington optocoupler, 1-channel DC input, 5000Vrms isolation, 1500% to 6500% CTR at 1mA, 350V/150mA output, 4-SMD Gull Wing, -55°C to 100°C, ROHS3, Active.","salesMarkdown":"The PS2533L-1-A is a single-channel Darlington-output optocoupler from Renesas's NEPOC series, packaged in a 4-SMD Gull Wing for surface-mount assembly. Its headline rating is 5000Vrms isolation between input and output — a safety barrier sized for mains-referenced circuits, motor drives, and industrial PLC I/O modules where galvanic isolation is a regulatory requirement. The Darlington output stage delivers a current transfer ratio (CTR) of 1500% minimum to 6500% maximum at just 1 mA forward current, meaning a small LED drive signal can switch a much larger load on the output side. Output rating is 350V maximum and 150mA per channel, covering relay coil replacement, solenoid valves, and low-power AC/DC load switching. ## Darlington vs. transistor output — the CTR difference matters Compared to a transistor-output optocoupler like the PS2801C-4-V-A (which offers a 300mV Vce saturation and 5µs rise/fall times), the PS2533L-1-A's Darlington output trades switching speed for current gain. The Darlington's 1500% to 6500% CTR range at 1mA forward current means the LED can be driven with a fraction of the current needed for a transistor-output part to achieve the same output current — useful in low-power or battery-backed designs. The trade-off is slower switching: 100µs rise and fall times typical, versus 5µs and 7µs for the transistor-output peer. For 50/60 Hz line-frequency switching or DC load control, the Darlington's speed is adequate; for high-speed data or PWM above a few kilohertz, the transistor-output part is the better fit. ## Package and temperature range Surface-mount in a 4-SMD Gull Wing package (supplier device package 4-SMD). The Gull Wing leads provide a visible solder joint for inspection — a practical advantage over J-bend or leadless packages in production and rework. Operating temperature range is -55°C to 100°C, covering industrial and outdoor telecom environments. The -55°C low end also suits cold-climate or avionics bay installations where the board sees ambient cold soak.","metaTitle":"PS2533L-1-A NEPOC Darlington Optocoupler, 5000Vrms, 4-SMD","metaDescription":"PS2533L-1-A NEPOC Darlington optocoupler with 5000Vrms isolation, 1500-6500% CTR at 1mA, 350V/150mA output. Active lifecycle, 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":"Darlington","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"1V","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"100µs, 100µs","Voltage - Output (Max)":"350V","Supplier Device Package":"4-SMD","Current - Output / Channel":"150mA","Current Transfer Ratio (Max)":"6500% @ 1mA","Current Transfer Ratio (Min)":"1500% @ 1mA","Voltage - Forward (Vf) (Typ)":"1.15V","Current - DC Forward (If) (Max)":"80 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.06","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.06000","currency":"USD"},{"qty":10,"price":"$1.37100","currency":"USD"},{"qty":100,"price":"$1.05470","currency":"USD"},{"qty":500,"price":"$0.95344","currency":"USD"},{"qty":1000,"price":"$0.81936","currency":"USD"},{"qty":2000,"price":"$0.77467","currency":"USD"},{"qty":5000,"price":"$0.75679","currency":"USD"},{"qty":10000,"price":"$0.74488","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/800e8c879afd64a9940979b0197d4576.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between PS2533L-1-A and PS2801C-4-V-A?","answer":"The PS2533L-1-A is a single-channel Darlington-output optocoupler with 5000Vrms isolation and a 1500% to 6500% CTR range at 1mA. The PS2801C-4-V-A is a four-channel transistor-output optocoupler with 2500Vrms isolation and faster switching (5µs rise/fall). The Darlington part trades switching speed for much higher current gain — choose the PS2533L-1-A when you need to drive a load with minimal LED current, and the PS2801C-4-V-A when you need multiple channels or faster response."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/PS2533L-1-A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/PS2533L-1-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}}