{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMB27CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMB27CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMB27CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMB27CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMB Series bidirectional Zener TVS, 1.5SMB27CA, DO-214AA SMB package, 1500W peak pulse power, 23.1V reverse standoff, 37.5V clamp.","salesMarkdown":"## 1.5kW bidirectional TVS for telecom signal-line clamping The 1.5SMB27CA: Single bidirectional channel means it clamps both polarities on a signal pair — no need for two unidirectional diodes in anti-series, which saves board space on telecom line cards where ESD and lightning surges hit the twisted pair. The 23.1V reverse standoff sits below common telecom rail voltages (24V or 48V nominal) so the TVS stays off the line during normal operation and only conducts during a fault, keeping leakage to a minimum. ## DO-214AA surface-mount package and temperature range Operating junction temperature range spans -65°C to 150°C, covering outdoor telecom cabinet thermal extremes (cold start at -40°C and solar load at +85°C ambient) with margin for self-heating during the surge event. Surface-mount tape-and-reel packaging (TR) supports automated pick-and-place assembly; the SMB body is large enough for visual inspection after reflow but small enough for high-density line card layouts. ## Active lifecycle — no EOL watch needed Compliance documentation (RoHS, REACH, UL recognition) is available per Littelfuse standard TVS product collateral — no special screening beyond the standard production lot.","metaTitle":"Littelfuse 1.5SMB27CA TVS Diode, 1.5kW, 23.1V Standoff","metaDescription":"Littelfuse 1.5SMB27CA bidirectional Zener TVS, 1500W peak pulse power, 23.1V reverse standoff, 37.5V clamp. Active production — quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMB","Package":"Tape & Reel (TR)","Applications":"Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMB","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AA (SMBJ)","Voltage - Breakdown (Min)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2635","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/81b90dfb07fef606df152b0bf1427329.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the clamping performance of 1.5SMB27CA?","answer":"The 23.1V reverse standoff ensures it does not conduct during normal 24V telecom line operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMB27CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMB27CA 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}}