{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ51CA_R1_00001","brand":"Panjit International Inc.","brandSlug":"panjit-international-inc","productSlug":"1.5SMCJ51CA_R1_00001","canonicalUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ51CA_R1_00001","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ51CA_R1_00001","rawCanonicalId":null},"summary":{"shortDescription":"Panjit International Inc., 1.5SMCJ series, bidirectional TVS diode, 51V reverse standoff, 56.7V min breakdown, 82.4V clamping @ 18.2A, 1500W peak pulse, DO-214AB SMC surface mount.","salesMarkdown":"## Bidirectional TVS — what the 51 V rail rating means The 1.5SMCJ51CA_R1_00001: The 51 V reverse standoff is the normal operating rail — the diode stays off and invisible to the circuit up to that level. A downstream component must survive 82.4 V during a surge event, not 51 V — that distinction governs the clamping margin your circuit requires. The CA suffix marks this as bidirectional — it handles both polarities without a polarity marker, making it the right choice for AC signal lines, floating rails, and any circuit where the transient can swing both directions. A unidirectional TVS would clamp asymmetrically on an AC waveform or misfire on a negative-going surge. The 18.2 A peak pulse current is the companion figure at that waveform. If your surge source delivers a different energy profile — faster rise, longer tail — the effective clamping voltage and peak current will shift. The datasheet curves for your specific waveform are what size the part, not the 1500 W headline alone. Above 25 °C the derating curve applies — the peak pulse capability drops as the junction runs hotter, so in a hot environment the 1.5 kW rating buys less margin than the datasheet number implies at room temperature.","metaTitle":"Panjit 1.5SMCJ51CA_R1_00001, 51V Bidirectional TVS Diode","metaDescription":"Bidirectional TVS diode, 51V standoff, 56.7V min breakdown, 82.4V clamping, 1.5kW peak pulse. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Panjit International Inc.","Type":"Zener","Series":"1.5SMCJ","Package":"Tape & Reel (TR); Cut Tape (CT)","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":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC (DO-214AB)","Voltage - Breakdown (Min)":"56.7V","Voltage - Clamping (Max) @ Ipp":"82.4V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"18.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a271c765b4bf7e62ca251a7791548580.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the 1.5SMCJ51CA_R1_00001 do in a circuit?","answer":"It is a bidirectional TVS (transient voltage suppressor) diode that clamps voltage spikes above 56.7 V breakdown, limiting what the protected rail sees to 82.4 V during a surge event. The 51 V standoff rating defines the normal operating rail — the diode draws only leakage current until a transient exceeds that level."},{"question":"What is the difference between the 51 V standoff and the 82.4 V clamping voltage?","answer":"The 51 V standoff is the maximum voltage at which the diode remains off during normal operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ51CA_R1_00001","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/panjit-international-inc/1.5SMCJ51CA_R1_00001 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}}