{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1206L500SLWR","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1206L500SLWR","canonicalUrl":"https://icboms.com/littelfuse-inc/1206L500SLWR","factsUrl":"https://icboms.com/api/mcp/products/1206L500SLWR","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. POLY-FUSE®, LoRho series, polymeric PTC resettable fuse, 1206 (3216 Metric) concave SMD package, 5 A hold current, 6 V max, 50 A max fault current.","salesMarkdown":"## LoRho series — low-resistance PTC for tight voltage budgets The 1206L500SLWR: This is a polymeric PTC resettable fuse from Littelfuse's POLY-FUSE LoRho family, engineered for applications where every milliohm of series resistance matters. The initial resistance is 100 mOhms minimum, and the post-trip resistance holds at 12 mOhms maximum — an order of magnitude lower than standard PTCs, which keeps voltage drop across the fuse negligible in a 6 V rail. Rated for 5 A hold current (Ih) with a 10 A trip current (It), it handles normal operation up to 5 A and trips within 2 seconds at fault current levels. The maximum fault current it can interrupt is 50 A at 6 V, giving it solid short-circuit capability for low-voltage power distribution. ## 1206 footprint — standard pick-and-place fit Surface-mount construction means it flows through reflow soldering alongside other passives — no manual assembly step.","metaTitle":"Littelfuse 1206L500SLWR POLY-FUSE LoRho, 5A Hold","metaDescription":"Littelfuse 1206L500SLWR polymeric PTC resettable fuse, 5 A hold current, 6 V max, 50 A max fault, 1206 SMD package. Active production, sourced 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®, LoRho","Package":"Tape & Reel (TR); Cut Tape (CT)","Ratings":"-","Lead Spacing":"-","Time to Trip":"2 s","Current - Max":"50 A","Mounting Type":"Surface Mount","Voltage - Max":"6V","Package / Case":"1206 (3216 Metric), Concave","Product Status":"Active","Approval Agency":"-","Thickness (Max)":"0.039\\\" (1.00mm)","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.065\\\" W (3.20mm x 1.65mm)","Current - Trip (It)":"10 A","Height - Seated (Max)":"-","Operating Temperature":"-","Current - Hold (Ih) (Max)":"5 A","Resistance - Initial (Ri) (Min)":"100 mOhms","Resistance - Post Trip (R1) (Max)":"12 mOhms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1bba25c221c1a0e464f2c46553bc04f5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the hold current and voltage rating for 1206L500SLWR?","answer":"It holds 5 A continuously at up to 6 V, with a trip current of 10 A and a maximum interrupt rating of 50 A. The 2-second typical time-to-trip means it clears faults quickly without nuisance tripping on inrush."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1206L500SLWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1206L500SLWR 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}}