{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6630","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"1N6630","canonicalUrl":"https://icboms.com/microchip/1N6630","factsUrl":"https://icboms.com/api/mcp/products/1N6630","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 1N6630 standard fast recovery diode, 990 V reverse, 1.4 A average, 50 ns trr, through-hole axial package, bulk.","salesMarkdown":"## 990 V blocking, 50 ns recovery — the switching rectifier for high-voltage rails The Microchip Technology 1N6630 is a standard fast recovery rectifier rated for 990 V DC reverse voltage and 1.4 A average forward current, with a reverse recovery time of 50 ns. This puts it in the class of diodes that switch off fast enough to handle line-frequency and moderate-frequency rectification in power supplies, snubbers, and freewheeling paths without the switching loss of a standard recovery part. The 990 V blocking rating gives headroom on a 400 VAC or 480 VAC rectified bus (nominal ~565 VDC or ~680 VDC) — the diode stays well within its voltage derating margin even during line transients. The 1.4 A average current is a continuous rating; the 50 ns trr means the diode recovers before the next switching edge in a 50-60 Hz line or a low-frequency SMPS, keeping the reverse-recovery spike within the snubber's budget. ## Through-hole axial package — the high-reliability assembly choice The 1N6630 comes in an A, Axial through-hole package, supplied in bulk. The axial lead form is the standard for point-to-point wiring, turret-terminal boards, and high-reliability hand-assembled power supplies where a surface-mount diode's solder-joint fatigue under thermal cycling is a concern. The through-hole body also dissipates heat through the leads into the board copper or a terminal block — the thermal path is the lead cross-section, not a pad under the body. For a rectifier in an unpressurised avionics bay or an outdoor telecom rectifier that sees -40 °C startup and 105 °C steady-state, this diode does not require derating at the cold end and has margin at the hot end. ## Forward drop and leakage — the conduction and standby loss numbers For a 1.4 A load in a 50 °C ambient, the junction rise above case is manageable with lead-length cooling; for continuous operation near the rating, the lead length and board copper area become the thermal design variables. Reverse leakage is 2 µA at 990 V — a low figure that keeps standby dissipation under 2 mW even at the full blocking voltage. This matters in a capacitor-charging circuit or a hold-up supply where the diode sits reverse-biased for long periods and the leakage current would drain the storage cap. The diode capacitance is 40 pF at 10 V reverse bias, 1 MHz. In a snubber design, this capacitance adds to the node capacitance and shifts the RC time constant — a 40 pF contribution is small relative to a typical MOSFET output capacitance but should be included in the snubber calculation for a 990 V rail.","metaTitle":"Microchip 1N6630 Fast Recovery Diode, 990V, 1.4A, Axial","metaDescription":"Microchip Technology 1N6630 standard fast recovery diode, 990V reverse, 1.4A average, 50ns trr, through-hole axial package. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Microchip Technology","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Bulk","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"A, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"1N6630","Capacitance @ Vr, F":"40pF @ 10V, 1MHz","Reverse Recovery Time (trr)":"50 ns","Current - Reverse Leakage @ Vr":"2 µA @ 990 V","Voltage - DC Reverse (Vr) (Max)":"990 V","Current - Average Rectified (Io)":"1.4A","Operating Temperature - Junction":"-65°C~150°C","Voltage - Forward (Vf) (Max) @ If":"1.4 V @ 1.4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.0100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de93d913bd6732a72048d710ceab685f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6630/alternatives.json"},"ai":{"faq":[{"question":"What is the 1N6630's reverse recovery time and what does it mean for circuit design?","answer":"The 1N6630 has a 50 ns reverse recovery time (trr). This classifies it as a fast recovery diode — it switches off quickly enough for line-frequency rectification (50/60 Hz) and low-frequency SMPS without the high switching losses of a standard recovery part. For a 990 V rail, the 50 ns trr keeps the reverse-recovery current spike within the snubber's energy rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/1N6630","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/1N6630 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}}