{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VO2223B","brand":"Vishay","brandSlug":"vishay","productSlug":"VO2223B","canonicalUrl":"https://icboms.com/vishay/VO2223B","factsUrl":"https://icboms.com/api/mcp/products/VO2223B","rawCanonicalId":null},"summary":{"shortDescription":"VO2223B, Vishay, Phototriac Output, 1A RMS On-State, 600V Off-State, 4470Vrms Isolation, 600V/µs dV/dt, Through Hole 8-DIP, -40°C to 85°C, Active.","salesMarkdown":"The Vishay VO2223B is a single-channel phototriac output optocoupler in a through-hole 8-DIP package with 7 leads. It switches AC loads up to 1 A RMS at 600 V off-state voltage, with 4470 Vrms isolation between the LED input and the triac output. The part is typically used for resistive-load switching in industrial controls, solid-state relays, appliance power switching, and AC motor starters where galvanic isolation is required between a low-voltage logic circuit and the mains line. ## 1 A RMS and 600 V off-state — the load-handling reality The 1 A RMS on-state current is a continuous rating for resistive loads like heaters, incandescent lamps, and solenoid valves. For inductive loads — motors, contactors, transformers — the triac's turn-off dV/dt immunity of 600 V/µs (typical) is high enough that many designs can omit the external snubber, saving board space and BOM cost. The 600 V off-state voltage covers 240 VAC mains with margin for line surges up to 400 V peak. ## No zero-crossing — phase-control freedom The VO2223B has no internal zero-crossing circuit, so the triac can be triggered at any point in the AC cycle. This enables phase-angle dimming for incandescent lamps or soft-start for motors, but for inductive loads the lack of zero-crossing means the designer should evaluate snubber requirements at the maximum dV/dt the load generates. The 600 V/µs typical static dV/dt gives a wide margin for most industrial loads. ## LED drive — logic-compatible trigger The LED forward voltage is 1.4 V max, and the LED trigger current (Ift) is 10 mA max. The maximum DC forward current is 50 mA, so the resistor value should be chosen to keep the LED current between 10 mA and 50 mA. A 330 Ω resistor from a 5 V output gives about 12 mA, well within the trigger threshold. ## Isolation and approvals The 4470 Vrms isolation rating qualifies the VO2223B for reinforced insulation between low-voltage control circuits and mains AC. It carries cUR and UR approval, which simplifies certification for North American safety standards. ## Lifecycle and sourcing posture It is ROHS3 compliant. No end-of-life risk for new designs.","metaTitle":"VO2223B Phototriac Output, 1A 600V, 8-DIP Through Hole","metaDescription":"VO2223B phototriac with 1A RMS on-state, 600V off-state, 4470Vrms isolation, 600V/µs dV/dt. Through-hole 8-DIP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Output Type":"Triac, Power","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm), 7 Leads","Approval Agency":"cUR, UR","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"600V/µs (Typ)","Current - Hold (Ih)":"25mA","Voltage - Isolation":"4470Vrms","Voltage - Off State":"600 V","Operating Temperature":"-40°C ~ 85°C","Zero Crossing Circuit":"No","Supplier Device Package":"8-DIP","Voltage - Forward (Vf) (Typ)":"1.4V (Max)","Current - DC Forward (If) (Max)":"50 mA","Current - LED Trigger (Ift) (Max)":"10mA","Current - On State (It (RMS)) (Max)":"1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.26000","currency":"USD"},{"qty":10,"price":"$1.51000","currency":"USD"},{"qty":100,"price":"$1.16200","currency":"USD"},{"qty":500,"price":"$1.05040","currency":"USD"},{"qty":1000,"price":"$0.90269","currency":"USD"},{"qty":2000,"price":"$0.85345","currency":"USD"},{"qty":5000,"price":"$0.83376","currency":"USD"},{"qty":10000,"price":"$0.82063","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5d6b68190d2097bba96d526ac7a3ad0a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can VO2223B switch 1A at 600V AC without a snubber?","answer":"Yes, for many resistive loads. The typical static dV/dt of 600 V/µs is high enough to avoid self-triggering from line transients. For inductive loads, evaluate the load's dV/dt at turn-off; the margin is usually sufficient, but a small RC snubber may still be needed for heavily inductive loads like motors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/VO2223B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/VO2223B 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}}