{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0603L002/60YR","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"0603L002-60YR","canonicalUrl":"https://icboms.com/littelfuse-inc/0603L002-60YR","factsUrl":"https://icboms.com/api/mcp/products/0603L002%2F60YR","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse POLY-FUSE® 0603L Series, Polymeric PTC Resettable Fuse, 0603 (1608 Metric) Concave, 20 mA Hold, 60V, 40 A Max, Tape & Reel.","salesMarkdown":"## Polymeric PTC in a 0603 footprint The 0603L002/60YR is a Littelfuse POLY-FUSE® polymeric PTC resettable fuse in the 0603 (1608 Metric) concave surface-mount package. It protects low-current signal or power rails against overcurrent faults by switching from a low-resistance state to a high-resistance state when the trip current is exceeded. Hold current (Ih) is 20 mA maximum — the fuse remains conductive below this threshold. Trip current (It) is 60 mA, and the typical time to trip at 25°C is 1 second, meaning the device clears a fault quickly enough to protect downstream components without nuisance tripping on inrush. ## Fault ratings and resistance profile Maximum voltage rating is 60V, and the device can withstand a fault current up to 40 A — sufficient for most low-power DC rails in telecom, industrial control, or battery-management circuits. The initial series resistance (Ri) is at least 12 Ohms, rising to a maximum of 70 Ohms after a trip event (R1). This post-trip resistance limits the leakage current during the fault and resets when power is removed and the device cools. The hold and trip currents derate with ambient temperature — at the upper end of the range the effective hold current is lower, so the circuit designer should consult the derating curve for the specific application. ## Active production and sourcing posture Regulatory approvals include cURus and TUV, which certify the device for use in equipment sold in North America and the EU respectively.","metaTitle":"0603L002/60YR Littelfuse PTC Resettable Fuse, 20 mA Hold","metaDescription":"0603L002/60YR Littelfuse POLY-FUSE® polymeric PTC resettable fuse: 20 mA hold current, 60V max, 0603 SMD. cURus, TUV. Active production, available to order.","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)":"60 mA","Height - Seated (Max)":"-","Operating Temperature":"-40°C~85°C","Current - Hold (Ih) (Max)":"20 mA","Resistance - Initial (Ri) (Min)":"12 Ohms","Resistance - Post Trip (R1) (Max)":"70 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":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/0603L002-60YR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/0603L002-60YR 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}}