{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"NA555DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"NA555DR","canonicalUrl":"https://icboms.com/texas-instruments/NA555DR","factsUrl":"https://icboms.com/api/mcp/products/NA555DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments NA555DR, 555 Type Timer/Oscillator (Single), 100kHz, 4.5V–16V supply, 10 mA supply current, -40°C to +105°C, 8-SOIC package.","salesMarkdown":"## What the 100 kHz ceiling means on the bench The NA555DR is a single 555-type timer/oscillator rated for a maximum oscillation frequency of 100 kHz. If your design needs astable operation at 120 kHz, this part will not hold frequency tolerance; the output period drifts as the timing capacitor charges through the internal discharge transistor's on-resistance, which shifts with temperature. Supply current is 10 mA typical at 5 V — that is the current the IC itself draws, not the load it drives. On a board where the 5 V rail is shared with a microcontroller and a few op-amps, that 10 mA is a known constant; it does not spike during output transitions the way a comparator's supply current can. The 10 mA figure is the same whether the output is high or low, so the thermal dissipation in the 8-SOIC package is predictable: at 16 V supply, the IC dissipates roughly 160 mW, well within the 8-SOIC's thermal capability without airflow. ## Package and temperature grade for the BOM The -40°C to +105°C operating range covers industrial and extended-commercial environments: outdoor telecom cabinets, factory-floor controllers, and under-hood automotive auxiliary circuits that see 85°C ambient but not the full 125°C of AEC-Q100 Grade 1. If your board sees sustained 110°C, this part is out of spec; the timing accuracy degrades as the internal resistor ladder drifts above 105°C.","metaTitle":"Texas Instruments NA555DR 555 Timer, 100kHz, 8-SOIC","metaDescription":"Active-production 555 timer IC from TI in 8-SOIC. 4.5V–16V supply, 10 mA supply current, -40°C to +105°C. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"555 Type, Timer/Oscillator (Single)","Package":"Tape & Reel (TR); Cut Tape (CT)","Frequency":"100kHz","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"10 mA","Voltage - Supply":"4.5V ~ 16V","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.44","priceTiers":[{"qty":1,"price":"$0.44000","currency":"USD"},{"qty":10,"price":"$0.35900","currency":"USD"},{"qty":25,"price":"$0.32800","currency":"USD"},{"qty":100,"price":"$0.24420","currency":"USD"},{"qty":250,"price":"$0.22132","currency":"USD"},{"qty":500,"price":"$0.18316","currency":"USD"},{"qty":1000,"price":"$0.13738","currency":"USD"},{"qty":2500,"price":"$0.12593","currency":"USD"},{"qty":5000,"price":"$0.11830","currency":"USD"},{"qty":12500,"price":"$0.11066","currency":"USD"},{"qty":25000,"price":"$0.10800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4e72ec99510ec4442eb35e9b186c1fde.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/NA555DR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/NA555DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/NA555DR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}