{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ54AS_R1_00001","brand":"Panjit International Inc.","brandSlug":"panjit-international-inc","productSlug":"1.5SMCJ54AS_R1_00001","canonicalUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ54AS_R1_00001","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ54AS_R1_00001","rawCanonicalId":null},"summary":{"shortDescription":"Panjit International Inc. Zener TVS diode, unidirectional 1-channel, DO-214AB (SMC) surface-mount package, 54V reverse standoff (typ), 87.1V clamping max @ 17.2A peak pulse, 1.5kW peak pulse power, -55°C to 150°C junction operating temperature.","salesMarkdown":"## Transient protection fit — what the standoff and clamping ratings decide The 1.5SMCJ54AS_R1_00001: The reverse standoff of 54 V typ sets the bias voltage below which the TVS presents a high-impedance off-state — the protected rail runs at or below this level during normal operation. The breakdown minimum of 60 V gives a 6 V guard band over the standoff, so the part does not turn on below 54 V line noise. When a surge arrives, the clamping maximum of 87.1 V at a 17.2 A peak pulse current is the clamping voltage the downstream circuit sees at that current level. Matching the 10/1000 µs waveform of the spec to your system's surge test class (IEC 61000-4-5, for example) is the primary sizing step; a part rated at a different pulse width absorbs a different energy dose even at the same peak power number. The unidirectional polarity means it protects a single polarity rail — positive transients on the line to ground. For a bidirectional bus or a signal line that swings both ways, a dual-polarity or bidirectional TVS would be needed. The data does not list a bidirectional variant in this family, so confirm the polarity match to your protected node before committing it to the BOM. ## DO-214AB SMC package and thermal layout The SMC (DO-214AB) package is the mid-size SMC footprint — larger than the SMA (DO-214AC) and smaller than the SMB (DO-214BA). The land pattern must follow the IPC-7351B generic surface-mount land pattern for the SMC; thermal relief from the cathode tab to the PCB pad directly controls the transient thermal resistance during clamping events. The junction temperature rating of -55°C to 150°C is the maximum allowable internal temperature during the pulse — the device derates from 100% rated peak pulse capability at 25°C ambient toward the 150°C absolute maximum as ambient temperature rises. A thermal pad with adequate copper area on both board surfaces is required to stay within the peak junction temperature at the rated 17.2 A pulse current. Surface-mount pick-and-place assembly is straightforward; the package ships in Tape & Reel (TR) for automated placement and Cut Tape (CT) for low-volume or prototype runs. ## Sourcing and production status The part is listed Active by Panjit International Inc..","metaTitle":"1.5SMCJ54AS_R1_00001 TVS Diode, DO-214AB, 87.1V Clamping","metaDescription":"Panjit Zener TVS diode, unidirectional, 54V standoff / 87.1V clamping, 1.5kW peak pulse at 10/1000µs. DO-214AB SMC, surface mount, -55°C to 150°C junction.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Panjit International Inc.","Type":"Zener","Series":"-","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","Capacitance @ Frequency":"-","Supplier Device Package":"SMC (DO-214AB)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"60V","Voltage - Clamping (Max) @ Ipp":"87.1V","Voltage - Reverse Standoff (Typ)":"54V","Current - Peak Pulse (10/1000µs)":"17.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b8c6eab3232d925afed42f648094bb7c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ54AS_R1_00001/alternatives.json"},"ai":{"faq":[{"question":"What does the 1.5 kW peak pulse power rating mean for my protection circuit?","answer":"This waveform approximates the energy shape of a lightning surge or inductive load dump on a power bus. The part clamps the surge to 87.1 V max while conducting up to 17.2 A peak pulse current. When selecting a TVS for IEC 61000-4-5 or similar surge tests, confirm the test waveform's pulse width and peak current match the 10/1000 µs rating — a part rated at 8/20 µs (capacitor discharge waveform) at the same peak power handles a different energy dose."},{"question":"What is the difference between the 54 V standoff and the 60 V minimum breakdown?","answer":"The 54 V reverse standoff is the maximum voltage the TVS holds off in its high-impedance state during normal operation. The minimum breakdown of 60 V is the voltage at which the TVS begins to conduct significantly. The 6 V gap between them is the guard band — it prevents the TVS from prematurely clamping below 54 V on a noisy but nominally 48 V rail. The clamping voltage of 87.1 V is what the downstream circuit experiences only when the surge current reaches 17.2 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ54AS_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/1.5SMCJ54AS_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}}