{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1206L150THWR-A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1206L150THWR-A","canonicalUrl":"https://icboms.com/littelfuse-inc/1206L150THWR-A","factsUrl":"https://icboms.com/api/mcp/products/1206L150THWR-A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. POLY-FUSE® 1206L series, Type Polymeric, 1206L150THWR-A PTC resettable fuse, 1.5 A hold, 8 V max, 100 A max, 300 ms trip, AEC-Q200, surface mount 1206.","salesMarkdown":"## 1.5 A hold, 8 V max — the overcurrent reset point The Littelfuse 1206L150THWR-A is a polymeric PTC resettable fuse from the POLY-FUSE® 1206L series, rated for a 1.5 A hold current at 8 V maximum. When the fault current exceeds the trip threshold (It=3 A), the polymer heats and its resistance rises sharply, limiting the circuit current within 300 ms typical. The 100 A maximum fault current rating means it can interrupt short-circuit events up to that level without rupturing — a key parameter for automotive and industrial power rails where the prospective fault current can be high. ## AEC-Q200 qualification — automotive-grade overcurrent protection The 1206L150THWR-A carries AEC-Q200 qualification, the automotive passive-component stress-test standard. Approvals from cURus and TUV provide additional safety-agency acceptance for equipment sold into North American and European markets, covering the UL 1434 and IEC 60738-1 standards for polymeric PTCs. ## Resistance window and board-fit note Initial resistance (Ri) is 40 mOhms minimum; after a trip event the post-trip resistance (R1) rises to 120 mOhms maximum. This resistance shift is typical for polymeric PTCs — the trip resets the polymer but the crystalline structure does not fully recover, so the series resistance is permanently higher after the first fault.","metaTitle":"Littelfuse 1206L150THWR-A PTC Resettable Fuse, 1.5A, 8V","metaDescription":"Littelfuse 1206L150THWR-A polymeric PTC resettable fuse, 1.5A hold, 8V max, AEC-Q200, 300ms trip. Active, sourced per RFQ. cURus, TUV.","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":"300 ms","Current - Max":"100 A","Mounting Type":"Surface Mount","Voltage - Max":"8V","Package / Case":"1206 (3216 Metric), Concave","Product Status":"Active","Approval Agency":"cURus, TUV","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)":"3 A","Height - Seated (Max)":"-","Operating Temperature":"-40°C~85°C","Current - Hold (Ih) (Max)":"1.5 A","Resistance - Initial (Ri) (Min)":"40 mOhms","Resistance - Post Trip (R1) (Max)":"120 mOhms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd6794590906b9a34104657bec909382.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1206L150THWR-A and how is it quoted?","answer":"The 1206L150THWR-A is an active Littelfuse part sourced through authorized and independent distribution."},{"question":"What is the closest pin-compatible alternative to the 1206L150THWR-A in the POLY-FUSE 1206L family?","answer":"The 1206L150THWR-A is the specific 1.5 A hold variant in the 1206L series. Other hold-current ratings (e.g. 0.75 A, 1.0 A, 2.0 A) share the same 1206 footprint and 8 V max rating but differ in trip current and resistance — they are not pin-compatible substitutes without verifying the BOM's overcurrent threshold."},{"question":"What compliance documentation does Littelfuse provide for the 1206L150THWR-A?","answer":"The part carries cURus and TUV agency approvals. Littelfuse typically provides RoHS and REACH compliance declarations upon request through the distribution channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1206L150THWR-A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1206L150THWR-A 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}}