{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC56CA_R1_00001","brand":"Panjit International Inc.","brandSlug":"panjit-international-inc","productSlug":"1.5SMC56CA_R1_00001","canonicalUrl":"https://icboms.com/panjit-international-inc/1.5SMC56CA_R1_00001","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC56CA_R1_00001","rawCanonicalId":null},"summary":{"shortDescription":"Panjit International Inc. 1.5SMC56CA_R1_00001, Zener unidirectional TVS diode, 47.8V standoff, 53.2V min breakdown, 77V clamping @ 19.5A, 1500W peak pulse, -55 to 150°C TJ, DO-214AB SMC surface mount.","salesMarkdown":"## What the 1.5SMC56CA is — and what it protects The 1.5SMC56CA_R1_00001 is a unidirectional TVS (transient voltage suppressor) diode built on a Zener mechanism, packaged in the DO-214AB (SMC) surface-mount outline. It clamps voltage spikes on a single polarity rail, shunting surge current away from downstream circuitry. ## What the clamping spec means on the bench At 19.5A peak pulse current the clamping ceiling is 77V maximum — meaning the protected node cannot see more than 77V even when the surge tries to push the line higher. For a 48V rail this gives nearly 30V of headroom above the normal working voltage, which is the typical design target for telecom and industrial 48V input stages. The bidirectional channel count of 1 confirms unidirectional polarity — it protects the positive rail; the negative rail needs a separate diode or a bidirectional (CA vs CA) part in the same series if symmetric protection is required. Continuous dissipation is governed by the thermal resistance of the package to the board, not by this peak number. Board designers need to run a separate thermal analysis using the TJ(max) = 150°C limit against their actual board pad geometry and ambient. ## Temperature grade and deployment environment TJ rated -55°C to 150°C — this is the extended industrial/jGrade temperature band. The upper limit applies at the junction, so the board-level ambient derating must keep the package temperature well below 150°C under worst-case surge and ambient conditions. For outdoor enclosure or factory-floor installations without active cooling, the 150°C TJ ceiling gives reasonable margin above the -40°C floor of commercial equipment. Surface-mount DO-214AB SMC footprint — the standard EIA-468 land pattern applies. Solder joint reliability under thermal cycling is governed by the board pad design and the thermal expansion match between the package and the board substrate, not by the TVS itself. No IP sealing is specified — the SMC is an open package intended for a sealed enclosure, not direct environmental exposure without conformal coat or housing.","metaTitle":"Panjit 1.5SMC56CA_R1_00001 TVS Diode, 77V Clamping, 1500W","metaDescription":"Panjit 1.5SMC56CA_R1_00001 unidirectional TVS diode, 47.8V standoff, 53.2V min breakdown, 77V clamping @ 19.5A, 1500W peak pulse, -55 to 150°C TJ, DO-214AB SMC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Panjit International Inc.","Type":"Zener","Series":"1.5SMC","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)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9b1a0293ff65c6af80e9dd770f371944.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between a unidirectional and bidirectional TVS, and which does this part use?","answer":"A unidirectional TVS clips positive transients on one polarity rail and behaves like a Zener in reverse-bias; a bidirectional TVS clamps on both polarities. The 1.5SMC56CA_R1_00001 is a unidirectional Zener-type TVS with 1 bidirectional channel — it protects a single polarity rail. For a 48V positive supply rail this is the correct part; a bidirectional alternative in the same series would carry a different polarity variant suffix."},{"question":"Can I get a price or lead time for 1.5SMC56CA_R1_00001?","answer":"Quoted to order through independent distribution channels — availability and current lead times are confirmed against the RFQ quantity. No stock-holding claim is made; the part is sourced to BOM order with traceability back to the original manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panjit-international-inc/1.5SMC56CA_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/1.5SMC56CA_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}}