{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD073LR2","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD073LR2","canonicalUrl":"https://icboms.com/onsemi/FOD073LR2","factsUrl":"https://icboms.com/api/mcp/products/FOD073LR2","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD073LR2, dual-channel Darlington-output optocoupler, 8-SOIC surface-mount package, 2500 Vrms isolation, 400%–7000% CTR at 500 µA forward current.","salesMarkdown":"## Dual Darlington optocoupler in 8-SOIC The FOD073LR2 is a dual-channel Darlington-output optocoupler from onsemi in a standard 8-SOIC package (0.154\", 3.90 mm width). It accepts DC input and delivers up to 60 mA per channel at a maximum output voltage of 7 V. The current transfer ratio spans 400% minimum to 7000% maximum, both measured at 500 µA forward current — the Darlington gain stage gives you a wide operating margin for driving logic inputs or low-current relays. Isolation is rated at 2500 Vrms, suitable for basic functional isolation in industrial control, motor drives, and isolated power-supply feedback loops. ## Switching speed and drive current Typical turn-on time is 5 µs and turn-off time is 25 µs — the slower turn-off is characteristic of the Darlington output stage and limits the part to switching applications below about 20 kHz. Maximum DC forward current is 20 mA, with a typical forward voltage of 1.35 V. The output side can sink 60 mA per channel, enough to drive a small relay coil or a PLC input module directly. ## Active lifecycle and ordering Operating temperature range is -40°C to 85°C, covering most industrial and commercial environments. The surface-mount 8-SOIC footprint is widely used and easy to place with standard pick-and-place equipment.","metaTitle":"FOD073LR2 onsemi Optoisolator 2.5kV 2Ch Darlington 8-SOIC","metaDescription":"onsemi FOD073LR2 dual Darlington optocoupler, 400%–7000% CTR at 500 µA, 2500 Vrms isolation, -40°C to 85°C, 8-SOIC surface mount. Active lifecycle, Bulk","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Bulk","Input Type":"DC","Output Type":"Darlington","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"2","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C ~ 85°C","Voltage - Output (Max)":"7V","Supplier Device Package":"8-SOIC","Current - Output / Channel":"60mA","Current Transfer Ratio (Max)":"7000% @ 500µA","Current Transfer Ratio (Min)":"400% @ 500µA","Voltage - Forward (Vf) (Typ)":"1.35V","Turn On / Turn Off Time (Typ)":"5µs, 25µs","Current - DC Forward (If) (Max)":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.09","stockQuantity":0,"priceTiers":[{"qty":208,"price":"$1.45000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d2f027400b5f819bd22731ad9eb55724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) range of FOD073LR2?","answer":"The CTR is 400% minimum to 7000% maximum, both specified at a forward current of 500 µA. The wide range is typical for Darlington-output optocouplers and gives you headroom for load-current variation over temperature and device tolerance."},{"question":"Is FOD073LR2 compatible with FOD073L?","answer":"The FOD073LR2 is the Bulk (tube) variant of the FOD073L family. The 'R2' suffix indicates the packaging format — the die, electrical specs, and 8-SOIC package are identical to the tape-and-reel version (FOD073L). If your BOM calls for FOD073L in tube, the FOD073LR2 is a direct drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD073LR2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD073LR2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:11:01.556Z","lastPublished":"2026-07-17T20:11:01.556Z","indexable":true}}