{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC6.8CA BK PBFREE","brand":"Central Semiconductor Corp","brandSlug":"central-semiconductor-corp","productSlug":"1.5SMC6.8CA-BK-PBFREE","canonicalUrl":"https://icboms.com/central-semiconductor-corp/1.5SMC6.8CA-BK-PBFREE","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CA%20BK%20PBFREE","rawCanonicalId":null},"summary":{"shortDescription":"Central Semiconductor Corp, bidirectional Zener TVS diode, 1.5SMC6.8CA BK PBFREE, 6.45V min breakdown, 10.5V max clamping, 1.5 kW peak pulse, DO-214AB SMC, surface mount.","salesMarkdown":"## What the voltage ratings mean for protection design The 1.5SMC6.8CA BK PBFREE: The minimum breakdown voltage of 6.45 V marks where the Zener channel begins conducting in the reverse direction — above this threshold the device is in avalanche and clamping, not standoff. The typical reverse standoff voltage sits at 5.8 V, which is the working rail the designer plans around; the part does not conduct below it. A 5.8 V rail sees at most a 10.5 V spike at the protected node during the event — the downstream IC or MOSFET must survive that transient, not the full surge. A faster waveform delivers the same energy at lower current, so the 143 A figure is specific to that pulse shape and the part's thermal response within that window. ## Package and thermal margin DO-214AB (SMC) is the standard surface-mount footprint for 1.5 kW TVS diodes — the same land pattern across most manufacturers means this part drops into a layout originally designed for any SMC-packaged 1.5 kW bidirectional suppressor without a board spin. Junction temperature range is -65°C to 150°C, which covers the full commercial and industrial envelope. The lower bound matters for cold-start and outdoor equipment; the upper bound is the usual derating ceiling for silicon avalanche suppressors. The part is bidirectional — a single channel that clamps both polarities. For an asymmetric rail or a differential signal line, the symmetric clamping characteristic is the intended behaviour, not a limitation. ## Active lifecycle — what sourcing looks like Central Semiconductor marks this part Active. No NRND notice or EOL event appears in the record. For a Zener TVS at this power class, second-source alternatives in the same SMC package are maintained by multiple suppliers — worth qualifying if the BOM carries a sole-source risk.","metaTitle":"Central Semiconductor 1.5SMC6.8CA BK PBFREE TVS Diode, 6.45V","metaDescription":"Central Semiconductor 1.5SMC6.8CA BK PBFREE, bidirectional Zener TVS in DO-214AB SMC. 6.45V min breakdown, 10.5V clamping, 1.5 kW peak pulse. Active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Central Semiconductor Corp","Type":"Zener","Series":"-","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-65°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Voltage - Breakdown (Min)":"6.45V","Voltage - Clamping (Max) @ Ipp":"10.5V","Voltage - Reverse Standoff (Typ)":"5.8V","Current - Peak Pulse (10/1000µs)":"143A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3126","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fd317436be1bfbe4279ec14240044171.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CA%20BK%20PBFREE/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5SMC6.8CA BK PBFREE used for?","answer":"The part is listed for general-purpose use."},{"question":"Is 1.5SMC6.8CA BK PBFREE still available?","answer":"The part carries an Active product status from Central Semiconductor. If the BOM runs on a single supplier, qualifying a second-source SMC-packaged TVS at the same ratings is a routine hedge for this power class."},{"question":"What is the difference between a Zener TVS and a standard Zener diode?","answer":"A Zener TVS is designed to clamp a transient surge energy pulse and return to its high-impedance state — the 1.5 kW peak rating and 10.1000 µs response are the defining figures. A standard Zener is designed for continuous voltage reference, not surge absorption. The 1.5SMC6.8CA BK PBFREE is a TVS with Zener-type avalanche characteristics, not a reference diode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/central-semiconductor-corp/1.5SMC6.8CA-BK-PBFREE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/central-semiconductor-corp/1.5SMC6.8CA-BK-PBFREE 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}}