{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1206L005/30WR","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1206L005-30WR","canonicalUrl":"https://icboms.com/littelfuse-inc/1206L005-30WR","factsUrl":"https://icboms.com/api/mcp/products/1206L005%2F30WR","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. POLY-FUSE®, 1206L series, Polymeric PTC Resettable Fuse, 1206L005/30WR, 50 mA hold, 60 VDC, 1206 SMD, AEC-Q200.","salesMarkdown":"## Hold current, voltage, and the trip decision The 1206L005/30WR is a Littelfuse POLY-FUSE polymeric PTC resettable fuse in the 1206L series. Its 50 mA hold current (Ih) at 60 VDC max defines the steady-state operating envelope — below that current the device stays low-resistance; above it, the polymer heats and the resistance jumps, protecting the downstream circuit. Trip time is 1.5 seconds at fault current, with a post-trip resistance ceiling of 20 Ohms. The AEC-Q200 qualification confirms it has passed the stress tests for automotive-grade passive components — thermal shock, vibration, and bias humidity. Surface-mount reflow assembly; the concave body allows visual inspection of the solder fillet on the terminations. ## Approvals and compliance Safety-agency approvals include cURus and TUV, covering North American and European equipment certification requirements. The AEC-Q200 rating means it is qualified for automotive electronics supply chains.","metaTitle":"Littelfuse 1206L005/30WR PTC Resettable Fuse, 50 mA Hold","metaDescription":"Littelfuse 1206L005/30WR POLY-FUSE polymeric PTC resettable fuse, 50 mA hold current, 60 VDC max, 1206 SMD package, AEC-Q200 qualified.","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®, 1206L","Package":"Tape & Reel (TR) Cut Tape (CT)","Ratings":"AEC-Q200","Lead Spacing":"-","Time to Trip":"1.5 s","Current - Max":"10 A","Mounting Type":"Surface Mount","Voltage - Max":"60V","Package / Case":"1206 (3216 Metric), Concave","Product Status":"Active","Approval Agency":"cURus, TUV","Thickness (Max)":"-","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.065\\\" W (3.20mm x 1.65mm)","Current - Trip (It)":"150 mA","Height - Seated (Max)":"-","Operating Temperature":"-40°C ~ 85°C","Current - Hold (Ih) (Max)":"50 mA","Resistance - Initial (Ri) (Min)":"3.6 Ohms","Resistance - Post Trip (R1) (Max)":"20 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd6794590906b9a34104657bec909382.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the 50 mA hold current mean for my circuit?","answer":"The 50 mA hold current (Ih) is the maximum steady-state current the PTC can carry without tripping at 25°C ambient. Above that threshold, the device will heat up and switch to a high-resistance state within 1.5 seconds, limiting fault current to protect downstream components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1206L005-30WR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1206L005-30WR 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}}