{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TC7SBL66CFU,LF","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TC7SBL66CFULF","canonicalUrl":"https://icboms.com/toshiba/TC7SBL66CFULF","factsUrl":"https://icboms.com/api/mcp/products/TC7SBL66CFU%2CLF","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TC7SBL66CFU,LF, SPST-NC analog switch, 1 circuit, 18 Ohm on-resistance, 5-SSOP package, Tape & Reel / Cut Tape.","salesMarkdown":"## What the 18 Ohm on-resistance means for signal integrity The TC7SBL66CFU,LF is a single-pole single-throw normally-closed (SPST-NC) analog switch with a maximum on-resistance of 18 Ohm — this is the series resistance between the signal path when the switch is closed. For a 50 Ohm impedance system, the switch adds roughly 0.3 dB of insertion loss at DC; the loss rises with frequency as the 3.5 pF channel capacitance (CS(off), CD(off)) starts to shunt the signal. The 6 ns typical turn-on and turn-off times mean the switch can handle digital signals up to about 80 MHz before the switching edges start to degrade, but for precision analog paths the flatness of RON over the input voltage swing matters more than the absolute value. The 1:1 multiplexer/demultiplexer circuit topology is a simple pass-gate — no internal logic to decode address lines, just a single control input that opens or closes the channel. The 1 µA maximum off-leakage current (IS(off)) keeps the signal path from loading the source when the switch is open, which is critical in high-impedance sensor front-ends or sample-and-hold stages. ## Supply rails and temperature range The surface-mount footprint is shared with many other single-gate logic and switch parts from Toshiba and competitors, so a single PCB land pattern can serve multiple BOM positions. ## Active lifecycle and RoHS compliance The 'LF' suffix in the order code indicates lead-free (RoHS-compliant) plating on the terminations.","metaTitle":"Toshiba TC7SBL66CFU,LF SPST-NC Switch, 18Ohm, 5-SSOP","metaDescription":"Toshiba TC7SBL66CFU,LF single SPST-NC analog switch, 18Ohm on-resistance, 6ns switching, 1.65-3.6V supply. Active, RoHS. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Switch Circuit":"SPST - NC","lifecycle_stage":"eol_hot","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"5-SSOP","On-State Resistance (Max)":"18Ohm","Switch Time (Ton, Toff) (Max)":"6ns, 6ns","Voltage - Supply, Single (V+)":"1.65V ~ 3.6V","Current - Leakage (IS(off)) (Max)":"1µA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"3.5pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.33300","currency":"USD"},{"qty":25,"price":"$0.29120","currency":"USD"},{"qty":100,"price":"$0.18850","currency":"USD"},{"qty":250,"price":"$0.15604","currency":"USD"},{"qty":500,"price":"$0.12484","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ce9f2bc9d5091b3284943255c216b67.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How does TC7SBL66CFU,LF compare to TC7SB66CFU,LF(CT?","answer":"The key difference is on-resistance: TC7SBL66CFU,LF has a maximum of 18 Ohm, while TC7SB66CFU,LF(CT is rated at 7 Ohm. Both are single SPST-NC switches in the same 5-SSOP package with the same supply voltage range (1.65 V to 3.6 V). The 7 Ohm version offers lower insertion loss for analog signals, but the 18 Ohm version is often adequate for digital signal gating or lower-frequency analog paths. The pinout is identical, so a board designed for one can accept the other without a layout change — the BOM line just swaps the order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TC7SBL66CFULF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TC7SBL66CFULF 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}}