{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0603L001/60YR","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"0603L001-60YR","canonicalUrl":"https://icboms.com/littelfuse-inc/0603L001-60YR","factsUrl":"https://icboms.com/api/mcp/products/0603L001%2F60YR","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse POLY-FUSE® 0603L series, Polymeric PTC resettable fuse, 0603L001/60YR, 60V max, 40A max, 10mA hold current, surface mount, 0603 (1608 Metric) concave package.","salesMarkdown":"## What this PTC fuse does on your board The 0603L001/60YR is a Littelfuse POLY-FUSE® polymeric PTC resettable fuse — it protects low-current signal or power rails from overcurrent faults by switching from low-resistance to high-resistance when the trip current is exceeded, then resetting when power is removed and the device cools. Hold current is 10 mA max, trip current is 50 mA — the rail must stay below 10 mA in normal operation; above 50 mA the fuse trips within 1 second typical. Rated for a maximum voltage of 60 V and a maximum fault current of 40 A — sufficient for protecting 24 V or 48 V bus lines in telecom or industrial control boards where the upstream supply can deliver tens of amps short-circuit. Initial resistance is 15 Ohms min, post-trip resistance rises to 100 Ohms max — the series voltage drop at 10 mA is under 0.15 V in the untripped state, negligible for most logic-level loads. ## Package, mounting, and operating range Housed in a 0603 (1608 Metric) concave surface-mount package, 1.60 mm x 0.80 mm, 1.00 mm max thickness — standard pick-and-place footprint, no special reflow profile beyond the typical lead-free solder curve for 0603 passives. Operating temperature range is -40°C to +85°C — suited for indoor and outdoor equipment that sees ambient heat but not continuous engine-bay or industrial oven temperatures. ## Regulatory approvals and supply status Approved by cURus and TUV — accepted for North American and European equipment certification without additional component-level testing.","metaTitle":"Littelfuse 0603L001/60YR PTC Resettable Fuse, 60V, 10mA Hold","metaDescription":"Littelfuse 0603L001/60YR POLY-FUSE polymeric PTC resettable fuse, 60V max, 40A max, 10mA hold current. Active production, sourced per RFQ. cURus, TUV approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Polymeric","Series":"POLY-FUSE®, 0603L","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Lead Spacing":"-","Time to Trip":"1 s","Current - Max":"40 A","Mounting Type":"Surface Mount","Voltage - Max":"60V","Package / Case":"0603 (1608 Metric), Concave","Product Status":"Active","Approval Agency":"cURus, TUV","Thickness (Max)":"0.039\\\" (1.00mm)","lifecycle_stage":"unknown","Size / Dimension":"0.063\\\" L x 0.031\\\" W (1.60mm x 0.80mm)","Current - Trip (It)":"50 mA","Height - Seated (Max)":"-","Operating Temperature":"-40°C~85°C","Current - Hold (Ih) (Max)":"10 mA","Resistance - Initial (Ri) (Min)":"15 Ohms","Resistance - Post Trip (R1) (Max)":"100 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f3e6b5aefd63d9cd1e6d6b839ee617f3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 0603L001/60YR and get a quote?","answer":"Sourced to order against your BOM quantity through independent and authorized distribution."},{"question":"What is the hold and trip current for this PTC fuse?","answer":"Hold current (Ih) is 10 mA max — the circuit must stay below this in normal operation. Trip current (It) is 50 mA, and the fuse trips within 1 second typical at that level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/0603L001-60YR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/0603L001-60YR 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}}