{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC223M","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC223M","canonicalUrl":"https://icboms.com/onsemi/MOC223M","factsUrl":"https://icboms.com/api/mcp/products/MOC223M","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC223M, 1-channel DC-input Darlington optoisolator, 8-SOIC (0.154\", 3.90mm width) surface mount, 2500Vrms isolation, 500% min current transfer ratio at 1 mA, 150 mA output, -40°C to 100°C.","salesMarkdown":"## Darlington gain at low drive current The MOC223M is a single-channel Darlington-output optoisolator from onsemi in an 8-SOIC surface-mount package. Its headline spec is a minimum current transfer ratio of 500% at a forward current of only 1 mA — so a 1 mA LED drive can sink 5 mA or more on the output side, enough to drive a PLC input, a small relay coil, or a logic gate without an external buffer transistor. The Darlington with Base output gives the designer access to the base node for external pull-up or speed-up components, which can reduce the turn-off time below the typical 125 µs when the application needs faster recovery. ## Isolation and temperature envelope for industrial I/O Rated for 2500Vrms galvanic isolation, the MOC223M provides a basic safety barrier between the low-voltage control side and the higher-voltage load side — typical in 24 VDC industrial I/O modules, sensor interfaces, and motor drive feedback circuits. The operating temperature range of -40°C to 100°C covers factory-floor, outdoor telecom cabinets, and HVAC equipment, but does not extend to extended automotive under-hood or military environments. The 8-SOIC package (0.154\" body width, 3.90 mm) is a standard surface-mount footprint shared by many optocouplers, making PCB layout straightforward with existing land patterns. ## Active lifecycle and sourcing posture ROHS3 compliant, with no exemption flags. For volume production, confirm the tube-to-reel conversion with your preferred distributor; reel quantities may be available under a different order code. ## Switching speed and load drive Typical rise time is 8 µs and fall time is 110 µs; turn-on is 10 µs, turn-off 125 µs. These figures suit low-frequency switching (relays, solenoid valves, indicator lamps) but are too slow for high-speed serial isolation or PWM above a few kilohertz. The output can sink up to 150 mA continuous at a maximum collector-emitter voltage of 30 V, with a saturation voltage of 1 V at rated current — adequate for driving a 24 V relay coil with a series resistor or a 5 V logic rail through a pull-up.","metaTitle":"MOC223M Optoisolator – onsemi Darlington Output 8-SOIC","metaDescription":"MOC223M from onsemi: 1-channel DC-input Darlington optoisolator, 2500Vrms isolation, 500% min CTR at 1 mA, 150 mA output, -40°C to 100°C, 8-SOIC surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Darlington with Base","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"2500Vrms","Vce Saturation (Max)":"1V","Operating Temperature":"-40°C ~ 100°C","Rise / Fall Time (Typ)":"8µs, 110µs","Voltage - Output (Max)":"30V","Supplier Device Package":"8-SOIC","Current - Output / Channel":"150mA","Current Transfer Ratio (Min)":"500% @ 1mA","Voltage - Forward (Vf) (Typ)":"1.08V","Turn On / Turn Off Time (Typ)":"10µs, 125µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.87","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.87000","currency":"USD"},{"qty":10,"price":"$0.56900","currency":"USD"},{"qty":100,"price":"$0.37270","currency":"USD"},{"qty":1000,"price":"$0.29421","currency":"USD"},{"qty":2000,"price":"$0.27460","currency":"USD"},{"qty":5000,"price":"$0.26479","currency":"USD"},{"qty":10000,"price":"$0.26087","currency":"USD"},{"qty":25000,"price":"$0.25498","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b42c772a887aca36bbc5f4d9785e790d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to the MOC223M?","answer":"The 4N33SM is a direct peer — same Darlington with Base output, same 150 mA output current, same surface-mount 8-SOIC package, and same -40°C to 100°C temperature range. The key difference is that 4N33SM offers a higher isolation rating (4170 Vrms vs 2500 Vrms) and faster turn-on/turn-off times (5 µs / 100 µs vs 10 µs / 125 µs). For a pin-compatible drop-in, verify the base pin connection matches your layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC223M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC223M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:08:58.877Z","lastPublished":"2026-07-17T20:08:58.877Z","indexable":true}}