{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC56CA R7G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC56CA-R7G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CA-R7G","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC56CA%20R7G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation, 1.5SMC series, bidirectional Zener TVS diode, 1.5SMC56CA R7G, 47.8 V reverse standoff, 53.2 V min breakdown, 77 V max clamping, 20 A peak pulse, 1.5 kW peak pulse power, DO-214AB SMC surface mount, tape & reel.","salesMarkdown":"## TVS function and the 1.5SMC family positioning The 1.5SMC56CA R7G is a bidirectional Zener-type transient voltage suppressor — the CA suffix designates bidirectional polarity, clamping the same threshold in both directions. It slots into the 1.5SMC series, a general-purpose TVS family rated for board-level surge protection on data, signal, and power lines that do not require dedicated power-line certification. The reverse standoff voltage of 47.8 V is the rail voltage the TVS sees during normal operation — the protected line must sit comfortably below this so the Zener remains off and draws only leakage current. When a surge pushes the line above the breakdown threshold, the TVS clamps and diverts up to 20 A away from downstream circuitry. ## Protection window — standoff, breakdown, and clamping Minimum breakdown is 53.2 V — this is the voltage at which the Zener begins conducting in the reverse direction. The protection window opens above this figure and closes at the clamping voltage ceiling of 77 V maximum at the rated peak pulse current. A line sitting at 47.8 V nominal sees a 5.4 V margin to the breakdown floor under normal conditions. The clamping voltage at 20 A peak pulse (10/1000 µs waveform) is 77 V maximum — this is what the downstream IC or transceiver experiences if a surge event reaches the TVS. Selecting the standoff below the circuit working voltage while keeping the clamping ceiling below the downstream absolute maximum rating is the core TVS sizing decision. ## Peak pulse power and thermal headroom Rated 1.5 kW (1500 W) peak pulse power in the 10/1000 µs IEEE/IEC test waveform — this is the standard waveform specifiers use to match the TVS against the application's surge environment (ESD, inductive kick, lightning-induced transient). The 20 A peak pulse current is the companion figure at the 77 V clamping ceiling. Both ratings must be within the application's surge amplitude and duration profile. Derating curves in the datasheet translate peak pulse energy into steady-state junction temperature rise. ## DO-214AB SMC package and assembly fit DO-214AB (SMC) is the standard pick-and-place compatible footprint for 1.5–3 kW TVS diodes — the cathode bar on the package top identifies the polarity end. Soldering is reflow-compatible; the thermal pad on the package underside must wet fully to handle the peak pulse energy without dry-joint overheating. Tape and reel packaging suits high-volume SMT assembly. ## Sourcing — active production, no successor on record The base product number 1.5SMC56 identifies the family and voltage index — no official cross-reference or second-source alternative is documented for this specific order code. Quoted to order through independent distribution; availability and lead time confirmed at RFQ.","metaTitle":"1.5SMC56CA R7G TVS Diode, 47.8V, 1.5kW, DO-214AB SMC","metaDescription":"Taiwan Semiconductor 1.5SMC56CA R7G bidirectional Zener TVS, 47.8 V standoff / 53.2 V breakdown / 77 V clamping, 1.5 kW peak pulse at 20 A.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC56","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC56CA%20R7G/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CA-R7G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CA-R7G 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}}