{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6661/TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6661-TR","canonicalUrl":"https://icboms.com/microchip/1N6661-TR","factsUrl":"https://icboms.com/api/mcp/products/1N6661%2FTR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6661/TR, Standard Recovery Diode, 225 V reverse voltage, 500 mA average rectified current, DO-35 axial package, Tape & Reel.","salesMarkdown":"## 225 V reverse blocking, 500 mA forward — the DC rail guard The 1N6661/TR is a standard recovery diode rated for 225 V DC reverse voltage and 500 mA average rectified current, packaged in a DO-35 axial leaded form. It belongs to Microchip's MIL-PRF-19500/587 qualified series, meaning each device lot is screened to the military specification for hermeticity, temperature cycling, and electrical parameter limits. With a standard recovery speed exceeding 500 ns at 200 mA forward current, this diode is intended for 50/60 Hz line rectification, DC bus polarity protection, and freewheeling clamp applications where switching speed is not the primary constraint. The 225 V reverse voltage covers 120 VAC and 240 VAC rectified rails with margin. ## Junction temperature range and leakage floor The operating junction temperature spans -65°C to 175°C, a full military-grade range that suits avionics, satellite, and downhole equipment where ambient extremes exceed commercial limits. Reverse leakage is specified at 50 nA maximum at 225 V reverse bias — this low leakage floor is critical for hold-up capacitor circuits and high-impedance bias networks where every nanoamp affects the droop rate. Forward voltage is 1 V maximum at 400 mA forward current. At the full 500 mA average rating, the forward drop will be slightly higher, but the 1 V figure at 400 mA gives a reasonable estimate for power dissipation in continuous duty: roughly 0.5 W at full load, which the DO-35 glass body can handle with adequate lead-length heat sinking. The tape-and-reel packaging (TR suffix) is the standard production reel format for automated insertion equipment.","metaTitle":"Microchip 1N6661/TR Standard Recovery Diode, 225V, 500mA","metaDescription":"1N6661/TR standard recovery diode from Microchip Technology. 225 V reverse voltage, 500 mA average rectified current, DO-35 axial package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Speed":"Standard Recovery >500ns, > 200mA (Io)","Series":"Military, MIL-PRF- 19500/587","Package":"Tape & Reel (TR)","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-204AH, DO-35, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-35 (DO-204AH)","Current - Reverse Leakage @ Vr":"50 nA @ 225 V","Voltage - DC Reverse (Vr) (Max)":"225 V","Current - Average Rectified (Io)":"500mA","Operating Temperature - Junction":"-65°C~175°C","Voltage - Forward (Vf) (Max) @ If":"1 V @ 400 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.2000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ff69cc9fc7c2ec6a6da019550b49001e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6661%2FTR/alternatives.json"},"ai":{"faq":[{"question":"What military specification does 1N6661/TR comply with?","answer":"The 1N6661/TR is part of the Military, MIL-PRF-19500/587 series. This means each device lot is screened to the military specification for hermeticity, temperature cycling, and electrical parameter limits, making it suitable for defense and aerospace applications."},{"question":"What package does 1N6661/TR come in?","answer":"The 1N6661/TR is supplied in a DO-204AH (DO-35) axial leaded glass package. The /TR suffix indicates tape-and-reel packaging for automated assembly."},{"question":"How can I get pricing and availability for 1N6661/TR?","answer":"The 1N6661/TR is sourced to order against an RFQ through independent and authorized distribution channels. Submit an RFQ for the required quantity to receive a firm quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6661-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6661-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}}