{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5.0SMDJ58CA-QH","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"5.0SMDJ58CA-QH","canonicalUrl":"https://icboms.com/bourns-inc/5.0SMDJ58CA-QH","factsUrl":"https://icboms.com/api/mcp/products/5.0SMDJ58CA-QH","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. Automotive, AEC-Q101, 5.0SMDJ-Q Zener TVS diode, 5.0SMDJ58CA-QH, bidirectional, 58V standoff, 5kW peak pulse, DO-214AB (SMC), -55°C~150°C TJ.","salesMarkdown":"## Bourns 5.0SMDJ58CA-QH — what it is and what it protects It clamps voltage spikes on a protected rail by conducting the surge current away from downstream circuitry. The standoff voltage is 58 V typ, meaning the diode sits reverse-biased on a 58 V rail without conduction — the protection window opens above the 64.4 V breakdown minimum and clamps at 93.6 V max under the 53.5 A peak pulse (10/1000 µs waveform). ## Protection window and the 5kW peak pulse rating 5 kW peak pulse power in a SMC package is the 10/1000 µs rating — the standard automotive surge waveform. This is not the same as an 8/20 µs lightning rating, which produces higher peak currents for a given energy. Confirm which surge standard your system specification requires before committing the BOM line. A downstream semiconductor with a lower abs-max rating than 93.6 V needs additional headroom or a tighter-clamping part. ## AEC-Q101 temperature grade and automotive fit A 150°C TJ on a part with 20°C thermal resistance to ambient leaves limited margin in a sealed engine-bay enclosure on a 125°C ambient day. The -55°C lower bound covers cold-start and downhole / outside-instrumentation deployments where the board sees sub-zero temperatures before the enclosure warms. This part is not a consumer-grade TVS clipped to 0–70°C; the full automotive temp band removes a common screening failure mode in outdoor telecom enclosures. ## Surface-mount integration and tape-and-reel packaging Surface-mount DO-214AB (SMC) is the standard foot for this power class — the lead frame die-attach area under the cathode tab is the thermal path to the PCB pad. Check the land-pattern recommendation: insufficient solder coverage at the tab reduces the effective thermal resistance and raises the operating junction temperature at rated surge current. Single bidirectional channel — this part has one polarity of protection, not a dual-polarity stack. Verify your rail polarity: a reverse-biased standoff on the negative half-cycle must not exceed the reverse voltage rating in the application. There is no internal anti-series configuration; the bidirectional rating comes from the Zener avalanche symmetry.","metaTitle":"Bourns 5.0SMDJ58CA-QH TVS Diode, 5kW, 58V, AEC-Q101, SMC","metaDescription":"Bourns 5.0SMDJ58CA-QH — bidirectional Zener TVS, 5kW peak pulse, 58V standoff, 93.6V clamping, AEC-Q101 automotive. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Bourns Inc.","Type":"Zener","Series":"Automotive, AEC-Q101, 5.0SMDJ-Q","Package":"Tape & Reel (TR)","Applications":"Automotive, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"5000W (5kW)","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)":"64.4V","Voltage - Clamping (Max) @ Ipp":"93.6V","Voltage - Reverse Standoff (Typ)":"58V","Current - Peak Pulse (10/1000µs)":"53.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/05eb851c9694252cd9eda3a357f31c9b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/5.0SMDJ58CA-QH/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5.0SMDJ58CA-QH and how do I get a price?","answer":"Sourced to order via RFQ through independent distribution channels. No stock-holding claim is made on this part — lot traceability and Bourns manufacturer documentation are available through the sourcing channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/5.0SMDJ58CA-QH","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/5.0SMDJ58CA-QH 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}}