{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N4148UB/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N4148UB-TR","canonicalUrl":"https://icboms.com/microchip/1N4148UB-TR","factsUrl":"https://icboms.com/api/mcp/products/1N4148UB%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N4148UB/TR standard switching diode, 75 V reverse, 200 mA forward, 20 ns trr, 4 pF capacitance, 3-SMD no-lead UB package, Tape & Reel.","salesMarkdown":"## 75 V, 200 mA switching diode in UB package The 1N4148UB/TR is a standard small-signal switching diode from Microchip Technology, rated for 75 V DC reverse voltage and 200 mA average rectified forward current. The 20 ns reverse recovery time (trr) places it in the fast-switching class for general-purpose signal rectification and clamping. Housed in a 3-SMD no-lead UB package (Supplier Device Package: UB), it mounts flush to the PCB with no protruding leads — suited for low-profile or vibration-sensitive assemblies where a traditional SOD-123 or DO-35 body would stand too tall. ## Parametric fit for signal switching and clamping Reverse leakage is 500 nA maximum at 75 V, which keeps the off-state power dissipation negligible in high-impedance bias networks or sample-and-hold front ends where leakage current would shift the DC operating point. Capacitance is 4 pF at 0 V reverse bias, 1 MHz — this low junction capacitance preserves signal integrity in high-speed switching up to several MHz, and the 20 ns trr ensures the diode recovers fast enough for flyback snubbing and inductive kickback clamping in relay-drive circuits. Supplied in Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly.","metaTitle":"Microchip 1N4148UB/TR Switching Diode, 75V, 200mA, 20ns trr","metaDescription":"Microchip Technology 1N4148UB/TR standard switching diode, 75V reverse, 200mA forward, 20ns trr, 4pF capacitance. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Speed":"Small Signal =< 200mA (Io), Any Speed","Series":"-","Package":"Tape & Reel (TR)","Technology":"Standard","Mounting Type":"Surface Mount","Package / Case":"3-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N4148","Capacitance @ Vr, F":"4pF @ 0V, 1MHz","Supplier Device Package":"UB","Reverse Recovery Time (trr)":"20 ns","Current - Reverse Leakage @ Vr":"500 nA @ 75 V","Voltage - DC Reverse (Vr) (Max)":"75 V","Current - Average Rectified (Io)":"200mA","Operating Temperature - Junction":"-65°C ~ 200°C","Voltage - Forward (Vf) (Max) @ If":"1.2 V @ 100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$23.0501","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/27385f36b3389f6bba6d1404ef562503.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N4148UB%2FTR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N4148UB-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N4148UB-TR 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}}