{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ40A-AU_R1_000A1","brand":"Panjit International Inc.","brandSlug":"panjit-international-inc","productSlug":"1.5SMCJ40A-AU_R1_000A1","canonicalUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ40A-AU_R1_000A1","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ40A-AU_R1_000A1","rawCanonicalId":null},"summary":{"shortDescription":"Panjit International Inc. Automotive, AEC-Q101 Zener unidirectional TVS diode, 1.5SMCJ40A-AU_R1_000A1, 40 V reverse standoff, 1.5 kW peak pulse, 64.5 V max clamping @ 23.2 A, SMC (DO-214AB).","salesMarkdown":"## Clamping ceiling — what the 40 V standoff and 1.5 kW peak mean for the board The 1.5SMCJ40A-AU_R1_000A1: The 40 V reverse standoff defines the working rail the TVS watches in normal operation — it sits unbiased on the line and clips transients above that threshold. When a surge fires, the 23.2 A peak pulse (10/1000 µs waveform) flows and the clamping voltage ceiling is 64.5 V at that current. That standoff/clamp pair is the governing spec for choosing this part against a known transient magnitude and source impedance on the board. 1.5 kW peak pulse is the 10/1000 µs rating — this is the industry's standard surge-waveshape reference for board-level protection upstream of ECU inputs. The part survives a single-event transient of that energy without degradation to the Zener junction. Switching to a faster 8/20 µs surge or repeating the event without adequate inter-event cooling will push the junction toward its 150 °C TJ limit faster than the datasheet thermal budget assumes. ## AEC-Q101 — what automotive grade means for the ECU environment The AEC-Q101 qualification is the discrete-semiconductor counterpart to AEC-Q100 for ICs — it screens the part for temperature cycling, humidity bias, and surge stress that an untested commercial TVS would not survive in an engine-compartment or chassis-domain ECU. ## SMC (DO-214AB) — reel, bake, and reflow considerations for EMS The DO-214AB (SMC) is the mid-range automotive TVS package — wider than the SMB and heavier than the SMA, which means the land pattern and paste mask for the cathode tab carry more solder volume. For a Zener TVS the thermal pad is the anode-side epoxy body, not an exposed paddle, so the primary heat path is through the lead frame to the PCB pad. Confirm the anode/cathode polarity marking on the reel orientation before the pick-and-place program loads — the Cathode band is on the sleeve, not the body, and a reversed part protects the wrong polarity.","metaTitle":"1.5SMCJ40A-AU_R1_000A1 TVS Diode 40V 1.5kW SMC","metaDescription":"Panjit 1.5SMCJ40A-AU_R1_000A1 unidirectional Zener TVS, 40 V standoff, 1.5 kW peak pulse, 64.5 V clamping. AEC-Q101 automotive. Active — 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":"Automotive, AEC-Q101","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","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)":"44.4V","Voltage - Clamping (Max) @ Ipp":"64.5V","Voltage - Reverse Standoff (Typ)":"40V","Current - Peak Pulse (10/1000µs)":"23.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ40A-AU_R1_000A1/alternatives.json"},"ai":{"faq":[{"question":"What voltage does the 1.5SMCJ40A-AU_R1_000A1 clamp at, and how much peak current can it handle?","answer":"The reverse standoff is 40 V — the TVS sits idle below that. At the peak pulse event the clamping ceiling is 64.5 V measured at 23.2 A with a 10/1000 µs waveshape, and the peak pulse power rating is 1.5 kW under those conditions."},{"question":"Is the 1.5SMCJ40A-AU_R1_000A1 qualified for automotive use, and what temperature range applies?","answer":"The part is AEC-Q101 qualified, which is the discrete-semiconductor automotive stress screen — it covers temperature cycling, humidity, and surge events that a standard commercial TVS is not screened for. The rated junction temperature span is -55°C to 150°C, which brackets both the underhood cold-start and sustained high-ambient extremes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panjit-international-inc/1.5SMCJ40A-AU_R1_000A1","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/1.5SMCJ40A-AU_R1_000A1 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}}