{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4646EUK+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4646EUKT","canonicalUrl":"https://icboms.com/analog-devices/MAX4646EUKT","factsUrl":"https://icboms.com/api/mcp/products/MAX4646EUK%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4646EUK+T SPST-NC analog switch, 2.5 Ohm on-resistance, 1.8V-5V supply, SOT-23-5, Tape & Reel.","salesMarkdown":"## Low on-resistance, normally-closed signal switch The MAX4646EUK+T is a single-pole single-throw (SPST) analog switch from Analog Devices, configured normally-closed (NC). Its headline spec is a maximum on-resistance of 2.5 Ohm — low enough to pass a precision analog signal with minimal attenuation and voltage drop across the switch, which matters when the downstream ADC reference or load impedance is in the low kilo-ohm range. ## Switching speed and signal integrity parametrics Turn-on time is 15 ns max, turn-off 10 ns max — these set the throughput ceiling in a multiplexed data-acquisition front-end or an audio routing matrix. The charge injection is rated 5 pC typical, a figure that determines how much glitch energy couples onto the signal path each time the switch toggles; in a sample-and-hold circuit this translates directly into hold-step error. Off-state leakage is 250 pA max at 25°C, and the off-capacitance on both source and drain pins is 17 pF each. The leakage floor matters when the switch isolates a high-impedance sensor node — 250 pA into a 10 MOhm source creates a 2.5 mV offset error, a factor in precision DC paths. The 17 pF off-capacitance, combined with the off-state resistance, sets the isolation bandwidth; above roughly 10 MHz the capacitive feedthrough dominates the off-isolation. Channel-to-channel matching (ΔRon) is 100 mOhm max — a single-channel part, but the matching spec tells you the on-resistance repeatability from unit to unit within a reel, relevant if multiple parts are used in a gain-setting or divider network where ratiometric accuracy depends on matched switch resistance. Housed in a 5-pin SOT-23 (SC-74A) package, the supplier device package is SOT-23-5. The footprint is shared across hundreds of analog switches and op-amps — a standard 0.95 mm pitch, 2.9 mm body length. It is RoHS3 compliant (2011/65/EU + 2015/863), with no exemptions.","metaTitle":"MAX4646EUK+T Analog Devices SPST NC Switch, 2.5Ohm, SOT-23-5","metaDescription":"MAX4646EUK+T Analog Devices SPST-NC analog switch, 2.5Ohm on-resistance, 15ns/10ns switching, SOT-23-5. Active, RoHS3. Quoted per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Switch Circuit":"SPST - NC","lifecycle_stage":"eol_hot","Charge Injection":"5pC","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-5","On-State Resistance (Max)":"2.5Ohm","Switch Time (Ton, Toff) (Max)":"15ns, 10ns","Voltage - Supply, Single (V+)":"1.8V ~ 5V","Current - Leakage (IS(off)) (Max)":"250pA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"17pF, 17pF","Channel-to-Channel Matching (ΔRon)":"100mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.51000","currency":"USD"},{"qty":10,"price":"$3.14900","currency":"USD"},{"qty":25,"price":"$2.97680","currency":"USD"},{"qty":100,"price":"$2.58000","currency":"USD"},{"qty":250,"price":"$2.44772","currency":"USD"},{"qty":500,"price":"$2.19634","currency":"USD"},{"qty":1000,"price":"$1.85234","currency":"USD"},{"qty":2500,"price":"$1.75972","currency":"USD"},{"qty":5000,"price":"$1.69357","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of the MAX4646EUK+T?","answer":"Maximum on-resistance is 2.5 Ohm across the full supply range and temperature band."},{"question":"What package does the MAX4646EUK+T use?","answer":"It comes in a 5-pin SOT-23 (SC-74A) package, also referred to as SOT-23-5. Available on Tape & Reel or Cut Tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4646EUKT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4646EUKT 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}}