{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4N25FVM","brand":"onsemi","brandSlug":"onsemi","productSlug":"4N25FVM","canonicalUrl":"https://icboms.com/onsemi/4N25FVM","factsUrl":"https://icboms.com/api/mcp/products/4N25FVM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 4N25FVM optocoupler, 1-channel DC input, transistor with base output, 7500Vpk isolation, 6-SMD Gull Wing, -55°C to 100°C.","salesMarkdown":"The onsemi 4N25FVM is listed as Obsolete by the manufacturer. Sourced through independent distribution channels against an RFQ. Rated for 7500Vpk isolation — this is a reinforced-level isolation barrier for a phototransistor optocoupler in a 6-SMD Gull Wing package. Suitable for applications where the primary and secondary circuits must be galvanically separated, such as in power-supply feedback loops, motor-drive interface signals, or medical equipment where patient-contact isolation is required. Minimum current transfer ratio (CTR) of 20% at 10 mA forward current means the output transistor conducts at least 2 mA collector current when the LED is driven with 10 mA. This sets the minimum load current the optocoupler can sink at the output side, which governs the pull-up resistor value and the noise margin in the receiving logic input. Typical turn-on and turn-off times of 2 µs each define the maximum switching frequency for clean pulse transmission. At 2 µs per edge, the practical data rate ceiling is roughly 250 kbps before pulse-width distortion becomes significant — adequate for 50/60 Hz line-sync feedback, relay-drive signals, or slow digital status lines. Operating temperature range of -55°C to 100°C covers the full industrial and military temperature envelope. The lower limit suits cold-start conditions in outdoor telecom or avionics; the upper limit stays within the junction temperature rating of the phototransistor. Supplied in a 6-SMD Gull Wing package (6-SMD), surface-mount. The Gull Wing leads provide a visible solder joint for inspection and rework, and the 1.27 mm (0.050-inch) pitch is compatible with standard SMT assembly processes. The package footprint matches the industry-standard 6-pin DIP SMD pattern used by the 4N25 family. DC input type — the internal LED is driven with a DC forward current up to 60 mA max. The typical forward voltage is 1.18 V at rated current, so a 5 V logic output can drive it through a series resistor without a level shifter. Output is a phototransistor with base access — the base pin allows external biasing or a speed-up capacitor to reduce turn-off time, though in most designs the base is left open or tied to emitter through a resistor for noise immunity.","metaTitle":"onsemi 4N25FVM Optoisolator, 7500Vpk, 6-SMD Gull Wing","metaDescription":"onsemi 4N25FVM optocoupler, 1-channel DC input, transistor output, 7500Vpk isolation, 6-SMD Gull Wing. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"4N25","Voltage - Isolation":"7500Vpk","Vce Saturation (Max)":"500mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"30V","Supplier Device Package":"6-SMD","Current - Output / Channel":"-","Current Transfer Ratio (Max)":"-","Current Transfer Ratio (Min)":"20% @ 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":"$0.5900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cdfaf651d7a1a3387e48131363a5f4f6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/4N25FVM/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 4N25FVM?","answer":"The base product number 4N25 covers a family of optocouplers with the same 6-pin DIP/SMD footprint; other variants within the 4N25 family (e.g., 4N25, 4N25M) may be functionally similar but are not direct drop-in replacements without verifying CTR, isolation voltage, and package dimensions against the BOM requirement."},{"question":"What compliance documentation does onsemi provide for the 4N25FVM?","answer":"Buyers should request the manufacturer's compliance declaration or the latest datasheet from the supplier at RFQ time to confirm regulatory status for the target market."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/4N25FVM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/4N25FVM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:19:49.064Z","lastPublished":"2026-07-21T06:19:49.064Z","indexable":true}}