[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-562553-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-562553-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","us1a-us1m-10a-surface-mount-ultra-fast-rectifier-datasheet","US1A-US1M - 1.0A SURFACE MOUNT ULTRA-FAST RECTIFIER - Datasheet","","US1A-US1M is a 1.0A surface-mount ultra-fast rectifier in SMA case designed for high-efficiency applications. It features glass passivated die construction, ultra-fast recovery for reduced switching losses, and surge overload capability up to 30A peak. The datasheet specifies ordering codes (US1x-13-F), lead-free/halogen-and-antimony-free “Green” compliance, polarity markings, thermal limits, electrical parameters (VRRM/VRWM/VR, IRM, trr), and capacitance values for device variants including US1A through US1M.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/us1a-us1m-10a-surface-mount-ultra-fast-rectifier-datasheet/562553/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/us1a-us1m-10a-surface-mount-ultra-fast-rectifier-datasheet/562553.png","ImageObject",300,407,{"name":42,"@type":43},"nayy☆","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-22","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",7,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What are the key features of the US1A-US1M rectifier?","Question",{"text":63,"@type":64},"It uses glass passivated die construction with ultra-fast recovery time for high efficiency, supports surge overload up to 30A peak, and is suited for automated assembly. It also offers lead-free finish and “Green” compliance (halogen and antimony free).","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How are the device variants and ordering codes structured?",{"text":68,"@type":64},"The part number format is US1x-13-F for SMA packaging with 5,000 per tape and reel. Here, x denotes the device type (e.g., US1A-13-F), and US1x also maps to the product type marking code.",{"name":70,"@type":61,"acceptedAnswer":71},"What electrical and thermal parameters are provided for selecting the correct operating conditions?",{"text":72,"@type":64},"The datasheet lists maximum ratings such as peak repetitive reverse voltage (VRRM), RMS reverse voltage, and forward surge current, plus thermal resistance (junction to terminal) and operating/storage temperature range. Electrical characteristics include forward voltage drop at specified forward currents, reverse current at blocking voltage, reverse recovery time, and typical total capacitance.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},562553,1791850793,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,105,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":103,"slug":104},6,50,"technology",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":97,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":102,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":97,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":143,"read_time":144},962090893153,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","US1A-US1M  \n1.0A SURFACE MOUNT ULTRA-FAST RECTIFIER  \nFeatures  \n􀁸 Glass Passivated Die Construction  \n􀁸 Ultra-Fast Recovery Time for High Efficiency  \n􀁸 Surge Overload Rating to 30A Peak  \n􀁸 High Current Capability  \n􀁸 Ideally Suited for Automated Assembly  \n􀁸 Lead-Free Finish; RoHS Compliant (Note 1)  \n􀁸 Halogen and Antimony Free.“Green” Device (Note 2)  \nTop View  \nMechanical Data  \n􀁸 Case: SMA  \n􀁸 Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0  \n􀁸 Moisture Sensitivity: Level 1 per J-STD-020  \n􀁸 Terminals: Lead Free Plating (Matte Tin Finish) . Solderable per MIL-STD-202, Method 208   \n􀁸 Polarity: Cathode Band or Cathode Notch  \n􀁸 Weight: 0.064 grams (Approximate)  \nBottom View  \nOrdering Information (Note 3)  \n\n| Part Number* | Case | Packaging |\n| --- | --- | --- |\n| US1x-13-F | SMA | 5,000/Tape & Reel |\n\n*x = Device type, e.g. US1A-13-F.  \nNotes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.  \n2. See [http://www.diodes.com/quality/lead_free.html](http://www.diodes.com/quality/lead_free.html) for more information about Diodes Incorporated’s definitions of Halogen-and Antimony-free, \"Green\"and Lead-free.  \n3. Halogen-and Antimony-free \"Green” products are defined as those which contain \u003C900ppm bromine, \u003C900ppm chlorine (\u003C1500ppm total Br + Cl) and \u003C1000ppm antimony compounds.  \nMarking Information  \n\n|  |  YWW\u003Cbr>US1x |  |\n| --- | --- | --- |\n\nUS1x = Product Type Marking Code, ex: US1A  = Manufacturers’ Code Marking  \nYWW = Date Code Marking  \nY = Last Digit of Year (ex: 4 for 2014)  \nWW = Week Code (01 to 53)  \nUS1A-US1M  \nDocument number: DS16008 Rev. 11-2  \n1 of 5  \n[www.diodes.com](www.diodes.com)  \nDecember 2014 © Diodes Incorporated  \nUS1A-US1M  \nMaximum Ratings (@TA = +25°C unless otherwise specified. )  \nSingle phase, half wave, 60Hz, resistive or inductive load.  \nFor capacitance load, derate current by 20% .  \n\n| Characteristic | Symbol | US1A | US1B | US1D | US1G | US1J | US1K | US1M | Unit |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Peak Repetitive Reverse Voltage\u003Cbr>Working Peak Reverse Voltage\u003Cbr>DC Blocking Voltage (Note 4) | VRRM\u003Cbr>VRWM\u003Cbr>VR | 50 | 100 | 200 | 400 | 600 | 800 | 1000 | V |\n| RMS Reverse Voltage | VR(RMS) | 35 | 70 | 140 | 280 | 420 | 560 | 700 | V |\n| Average Rectified Output Current @ TT = +75°C | IO | 1.0 |  |  |  |  |  |  | A |\n| Non-Repetitive Peak Forward Surge Current 8.3ms Single Half Sine-Wave Superimposed on Rated Load | IFSM | 30 |  |  |  |  |  |  | A |\n\nThermal Characteristics  \n\n| Characteristic | Symbol | Value | Unit |\n| --- | --- | --- | --- |\n| Maximum Thermal Resistance, Junction to Terminal | R 􀁔JT | 30 | °C/W |\n| Operating and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |\n\nElectrical Characteristics (@TA = +25°C unless otherwise specified. )  \n\n| Characteristic |  | Symbol | US1A | US1B | US1D | US1G | US1J | US1K | US1M | Unit |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Forward Voltage Drop | @ IF = 1.0A | V FM |  | 1.0 |  | 1.3 |  | 1.7 |  | V |\n| Peak Reverse Current\u003Cbr>at Rated DC Blocking Voltage (Note 4) | @ TA = +25°C\u003Cbr>@ TA = +100°C | IRM | 5.0\u003Cbr>100 |  |  |  |  |  |  | µA |\n| Reverse Recovery Time (Note 5) |  | trr |  | 5 | 0 |  |  | 75 |  | ns |\n| Typical Total Capacitance (Note 6) |  | CT |  | 2 | 0 |  |  | 10 |  | pF |\n\nNotes: 4. Short duration pulse test used to minimize self-heating effect.  \n5. Measured with IF = 0.5A, IR = 1.0A, Irr = 0.25A. See Figure 5.  \n6. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.  \n25 50 75 100 125 150 TT , TERMINAL TEMPERATURE (°C) Fig. 1 Forward Current Derating Curve  \nI ,F INSTANTANEOUS FORWARD CURRENT (A)  \n10  \n1.0  \n0.1  \n0.01  \n0 0.4 0.8 1.2 1.6 2.0 VF , INSTANTANEOUS FORWARD VOLTAGE (V)  \nFig. 2 Typical Forward Characteristics  \nUS1A-US1M  \nDocument number: DS16008 Rev. 11-2  \n2 of 5  \n[www.diodes.com](www.diodes.com)  \nDecember 2014 © Diodes Incorporated  \n","cbCailePTdz9ZKAV","https://ap.wps.com/l/cbCailePTdz9ZKAV","pdf",176802,"English","# Features\n## Mechanical Data\n## Ordering Information\n## Marking Information\n## Maximum Ratings\n## Thermal Characteristics\n## Electrical Characteristics\n## Package Outline Dimensions\n## Suggested Pad Layout\n## Important Notice","[{\"question\":\"What are the key features of the US1A-US1M rectifier?\",\"answer\":\"It uses glass passivated die construction with ultra-fast recovery time for high efficiency, supports surge overload up to 30A peak, and is suited for automated assembly. It also offers lead-free finish and “Green” compliance (halogen and antimony free).\"},{\"question\":\"How are the device variants and ordering codes structured?\",\"answer\":\"The part number format is US1x-13-F for SMA packaging with 5,000 per tape and reel. Here, x denotes the device type (e.g., US1A-13-F), and US1x also maps to the product type marking code.\"},{\"question\":\"What electrical and thermal parameters are provided for selecting the correct operating conditions?\",\"answer\":\"The datasheet lists maximum ratings such as peak repetitive reverse voltage (VRRM), RMS reverse voltage, and forward surge current, plus thermal resistance (junction to terminal) and operating/storage temperature range. Electrical characteristics include forward voltage drop at specified forward currents, reverse current at blocking voltage, reverse recovery time, and typical total capacitance.\"}]","US1A-US1M - 1.0A SURFACE MOUNT ULTRA-FAST RECTIFIER - Datasheet | PDF",1791808914,13]