{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4N36SM","brand":"onsemi","brandSlug":"onsemi","productSlug":"4N36SM","canonicalUrl":"https://icboms.com/onsemi/4N36SM","factsUrl":"https://icboms.com/api/mcp/products/4N36SM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 4N36SM, single-channel optocoupler, DC input, transistor with base output, 4170Vrms isolation, 100% CTR min at 10mA, -40°C to 100°C, 6-SMD Gull Wing package, Tube","salesMarkdown":"## What this opto does on the board The 4N36SM is a single-channel optocoupler from onsemi that isolates a DC input from a transistor output with a base terminal. Its 4170Vrms isolation rating lets it bridge logic and power domains in industrial controls, motor drives, and PLC I/O modules where galvanic separation is mandatory for safety and noise immunity. The base pin on the output side gives you the option to bias the phototransistor for faster switching or to configure it as a photodarlington with an external transistor — a flexibility not available on simpler optos. Typical turn-on and turn-off times are 2µs each, fast enough for 24V digital inputs running at a few kHz. ## Key ratings that drive BOM decisions Current transfer ratio is guaranteed at 100% minimum with 10mA forward current. That means for every 10mA you push through the LED, the output transistor can sink at least 10mA collector current — enough to drive a TTL or 5V CMOS logic input directly. If your logic family needs less than 1mA at the input, you can drop the LED current well below 10mA and still have margin. The output transistor is rated for 30V maximum with a saturation voltage of 300mV max. That 300mV drop at full load matters when you're switching a 5V rail — the logic-high level at the collector will be 4.7V, which is still above the 3.5V threshold for most 5V CMOS inputs. For 3.3V logic, you'll want to check the input threshold of the receiving device against the Vce(sat) plus pull-up resistor drop. Forward voltage is 1.18V typical at the rated forward current. That's a standard red-LED drop, so any 3.3V or 5V GPIO can drive it through a current-limiting resistor. The maximum continuous forward current is 60mA, but you'll normally run it at 10–20mA for the CTR knee. ## Lifecycle and sourcing reality The 4N36SM is listed as Active and ROHS3 compliant. The surface-mount Gull Wing leads reflow well with standard lead-free profiles; the lead pitch is wide enough that hand-soldering or hot-air rework is straightforward. Pricing and lead time are confirmed at quote time against your BOM quantity. Submit an RFQ through the site — we source direct from authorized channels and can provide current availability and pricing for your volume.","metaTitle":"4N36SM onsemi Optoisolator – 4170Vrms, Transistor Output","metaDescription":"onsemi 4N36SM optocoupler: 4170Vrms isolation, 100% CTR min, DC input, transistor with base output. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"4170Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-40°C ~ 100°C","Voltage - Output (Max)":"30V","Supplier Device Package":"6-SMD","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.18V","Turn On / Turn Off Time (Typ)":"2µs, 2µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.74","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.74000","currency":"USD"},{"qty":10,"price":"$0.48700","currency":"USD"},{"qty":100,"price":"$0.32200","currency":"USD"},{"qty":1000,"price":"$0.24864","currency":"USD"},{"qty":2000,"price":"$0.22468","currency":"USD"},{"qty":5000,"price":"$0.20970","currency":"USD"},{"qty":10000,"price":"$0.20221","currency":"USD"},{"qty":25000,"price":"$0.19921","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d7db4dc53d56bf7e534658a700fb47e3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for the 4N36SM?","answer":"Submit an RFQ through this page with your target quantity. We source the 4N36SM from authorized distribution and confirm price and lead time at quote. The part is Active and in regular production, so lead times are typically standard for the optocoupler class."},{"question":"What is the closest pin-compatible alternative to the 4N36SM?","answer":"Within the same 6-SMD Gull Wing footprint, the 4N35SM is a near match — same onsemi family, same pinout, same 4170Vrms isolation. The main difference is the CTR: the 4N35SM has a 100% minimum at 10mA like the 4N36SM, but the 4N36SM typically offers tighter CTR binning. Confirm the CTR requirement against your design before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/4N36SM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/4N36SM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:07:09.378Z","lastPublished":"2026-07-17T20:07:09.378Z","indexable":true}}