{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5KP18A/B","brand":"YAGEO","brandSlug":"yageo","productSlug":"5KP18A-B","canonicalUrl":"https://icboms.com/yageo/5KP18A-B","factsUrl":"https://icboms.com/api/mcp/products/5KP18A%2FB","rawCanonicalId":null},"summary":{"shortDescription":"YAGEO 5KP18A/B unidirectional Zener TVS diode, 18V reverse standoff (typ), 20V breakdown (min), 29.2V clamping max @ 174.7A peak pulse, 5000W peak pulse, P600 axial through-hole.","salesMarkdown":"## 5KP series unidirectional Zener TVS in P600 axial The 5KP18A/B is a unidirectional Zener-based transient voltage suppressor from YAGEO's 5KP series, housed in the P600 axial through-hole package and rated for general-purpose circuit protection. The single-channel device clamps a surge once the line voltage exceeds its breakdown threshold, protecting downstream components from overvoltage events on the primary rail. ## What the standoff, breakdown, and clamping ratings mean The reverse standoff voltage of 18 V typical defines the working voltage the diode sees in normal operation — the part stays off and introduces no clamping action below that level. ## Peak pulse energy and what 5 kW means for surge survival That waveform shape is the standard industrial surge test profile for secondary protection on power rails. A 174.7 A peak pulse current flows through the diode at that rated event; the part survives it without degradation when the event is within the specified pulse width and repetition limits in the datasheet. ## Wide junction temperature range for industrial environments The through-hole P600 axial leadform makes it suited for board-level insertion with hand or wave solder, and the leaded package provides thermal relief through the leads that a surface-mount part of equivalent surge rating would not. The part carries no power-line protection designation — it is a secondary protection device intended for board-level overvoltage suppression, not a mains-fed service entry protector.","metaTitle":"YAGEO 5KP18A/B Zener TVS Diode, 18V standoff, 5kW peak pulse","metaDescription":"YAGEO 5KP18A/B unidirectional Zener TVS diode, 18V reverse standoff, 29.2V clamping at 174.7A peak pulse, 5kW surge rating, P600 axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"YAGEO","Type":"Zener","Series":"5KP","Package":"Box","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"P600, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"5000W (5kW)","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"P600","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"20V","Voltage - Clamping (Max) @ Ipp":"29.2V","Voltage - Reverse Standoff (Typ)":"18V","Current - Peak Pulse (10/1000µs)":"174.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a35eae7bc672199f45cbb981d91ccbe1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 5KP18A/B's listed type, and what does that mean for the protection circuit?","answer":"The listed type is Zener. This means the clamping action is voltage-driven — the diode conducts in reverse bias once the standoff voltage is exceeded, and the Zener breakdown characteristic holds the voltage near the clamping level for the duration of the surge event."},{"question":"What series does the 5KP18A/B belong to, and are there voltage variants?","answer":"It belongs to YAGEO's 5KP series — a family of unidirectional Zener TVS diodes in the P600 axial package, typically spanning a range of standoff voltages. The 5KP series is the standard industrial surge-suppression footprint for this power class, though the specific voltage variant (18 V standoff in this case) sets the working rail the part protects."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/yageo/5KP18A-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/yageo/5KP18A-B 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}}