{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD8802B","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD8802B","canonicalUrl":"https://icboms.com/onsemi/FOD8802B","factsUrl":"https://icboms.com/api/mcp/products/FOD8802B","rawCanonicalId":null},"summary":{"shortDescription":"onsemi OptoHit™ dual-channel transistor output optocoupler, FOD8802B, 2500Vrms isolation, 130-260% CTR at 1mA, 8-SOIC, tube.","salesMarkdown":"## Dual-channel transistor output in a narrow SOIC-8 The FOD8802B: It provides 2500Vrms galvanic isolation between a DC input LED and a transistor output, making it a straightforward fit for isolating logic-level signals across a safety barrier or breaking ground loops in mixed-voltage systems. That CTR band means the output transistor saturates reliably with modest LED drive — useful when the microcontroller's GPIO can only source a few milliamps. ## Parametric fit for signal isolation The output side is rated for up to 75 V across the collector-emitter and 30 mA continuous output current per channel. Switching is specified with typical turn-on and turn-off times of 6 µs each, and rise/fall times of 6 µs and 7 µs respectively. That places the useful data rate around 50-100 kbps — fine for isolated serial buses (UART, SPI at reduced speed) or digital I/O status feedback, but not for high-speed CAN or Ethernet. Forward voltage is 1.35 V typical at 20 mA max forward current. The LED side is DC-coupled, so a series resistor sets the drive current; no AC coupling needed. ## Lifecycle and compliance The dual-channel configuration in the narrow SOIC-8 footprint saves board space compared to two single-channel optocouplers. The tube packaging is standard for pick-and-place; reel options may be available through onsemi's distribution channel.","metaTitle":"onsemi FOD8802B OptoHit™ Optocoupler, 2-Ch, 2500Vrms","metaDescription":"onsemi FOD8802B dual-channel transistor output optocoupler, 2500Vrms isolation, 130-260% CTR at 1mA, -40 to 125°C. Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"OptoHit™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Series":"OptoHit™","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"2","Voltage - Isolation":"2500Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-40°C ~ 125°C","Rise / Fall Time (Typ)":"6µs, 7µs","Voltage - Output (Max)":"75V","Supplier Device Package":"8-SOIC","Current - Output / Channel":"30mA","Current Transfer Ratio (Max)":"260% @ 1mA","Current Transfer Ratio (Min)":"130% @ 1mA","Voltage - Forward (Vf) (Typ)":"1.35V","Turn On / Turn Off Time (Typ)":"6µs, 6µs","Current - DC Forward (If) (Max)":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.19","stockQuantity":30,"priceTiers":[{"qty":1,"price":"$2.19000","currency":"USD"},{"qty":10,"price":"$1.46000","currency":"USD"},{"qty":100,"price":"$1.12340","currency":"USD"},{"qty":500,"price":"$1.01550","currency":"USD"},{"qty":1000,"price":"$0.87269","currency":"USD"},{"qty":2000,"price":"$0.82509","currency":"USD"},{"qty":5000,"price":"$0.80605","currency":"USD"},{"qty":10000,"price":"$0.79336","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bb17ee017ad51e1e9ec161b294759e3b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to the FOD8802B?","answer":"The onsemi FODM8801C is a single-channel variant in the same OptoHit™ series, with similar CTR and switching speed but 3750Vrms isolation and a single output. The FOD8802B is dual-channel, so a drop-in replacement would require two FODM8801C devices and a board layout change."},{"question":"What compliance documentation does onsemi provide for the FOD8802B?","answer":"The FOD8802B is ROHS3 compliant. onsemi typically provides a declaration of compliance and a material declaration sheet through their documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD8802B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD8802B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}