Introducing the WALSIN WF08U4120BTL, a high-quality surface-mount resistor designed for precision and reliability in electronic applications. Manufactured in China, this resistor is part of the fixed resistor category, offering excellent stability and performance for demanding environments.
Product Features
SMD metal film resistor for high reliability and stability
Resistance tolerance options down to ±0.01%
High performance of TCR: 50 & 25 ppm/°C and below (per customer request)
Low current noise for sensitive electronic circuits
Note: Datasheet was not processed, please search the internet for the part number for more details.
Note: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10005075460413,"title":"WF08U4120BTL","handle":"wf08u4120btl","description":"\u003ch3\u003eWALSIN WF08U4120BTL Resistor\u003c\/h3\u003e\n\u003cp\u003eIntroducing the WALSIN WF08U4120BTL, a high-quality surface-mount resistor designed for precision and reliability in electronic applications. Manufactured in China, this resistor is part of the fixed resistor category, offering excellent stability and performance for demanding environments.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSMD metal film resistor for high reliability and stability\u003c\/li\u003e\n \u003cli\u003eResistance tolerance options down to ±0.01%\u003c\/li\u003e\n \u003cli\u003eHigh performance of TCR: 50 \u0026amp; 25 ppm\/°C and below (per customer request)\u003c\/li\u003e\n \u003cli\u003eLow current noise for sensitive electronic circuits\u003c\/li\u003e\n \u003cli\u003eRoHS compliant and lead-free construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSeries No.\u003c\/th\u003e\n \u003ctd\u003eWF08T \u0026amp; U\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eSize Code\u003c\/th\u003e\n \u003ctd\u003e0805 (2012)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e4.7Ω ~ 2MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Tolerance\u003c\/th\u003e\n \u003ctd\u003e±0.01%, ±0.02%, ±0.05%, ±0.1%, ±0.25%, ±0.5%, ±1.0%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Dissipation at 70°C\u003c\/th\u003e\n \u003ctd\u003e1\/10W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Operating Voltage\u003c\/th\u003e\n \u003ctd\u003e100V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Overload Voltage\u003c\/th\u003e\n \u003ctd\u003e200V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature\u003c\/th\u003e\n \u003ctd\u003e-55°C to +155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eLength (L)\u003c\/th\u003e\n \u003ctd\u003e2.00 ± 0.10 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWidth (W)\u003c\/th\u003e\n \u003ctd\u003e1.25 ± 0.10 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eLead\/Terminal (A)\u003c\/th\u003e\n \u003ctd\u003e0.25 ± 0.20 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOther Dimensions (B, T)\u003c\/th\u003e\n \u003ctd\u003eB: 0.40 ± 0.20 mm, T: 0.50 ± 0.15 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: WF08U4120BTL\u003c\/li\u003e\n \u003cli\u003eManufacturer: WALSIN\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Surface-mount (0805)\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf08u4120btl.pdf\" target=\"_blank\"\u003eWF08U4120BTL Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-08-06T15:45:11+05:30","created_at":"2025-08-06T15:45:11+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["1W","Fixed","RES","Resistors","STD_IMG","WALSI-X","WLDM"],"price":499,"price_min":499,"price_max":499,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50555250704701,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WF08U4120BTL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"WF08U4120BTL","public_title":null,"options":["Default Title"],"price":499,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"WF08U4120BTL","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_a6addac3-10e1-42bc-ae0c-6e8f375d1947.jpg?v=1754475311"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_a6addac3-10e1-42bc-ae0c-6e8f375d1947.jpg?v=1754475311","options":["Title"],"media":[{"alt":null,"id":45697856504125,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_a6addac3-10e1-42bc-ae0c-6e8f375d1947.jpg?v=1754475311"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_a6addac3-10e1-42bc-ae0c-6e8f375d1947.jpg?v=1754475311","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eWALSIN WF08U4120BTL Resistor\u003c\/h3\u003e\n\u003cp\u003eIntroducing the WALSIN WF08U4120BTL, a high-quality surface-mount resistor designed for precision and reliability in electronic applications. Manufactured in China, this resistor is part of the fixed resistor category, offering excellent stability and performance for demanding environments.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSMD metal film resistor for high reliability and stability\u003c\/li\u003e\n \u003cli\u003eResistance tolerance options down to ±0.01%\u003c\/li\u003e\n \u003cli\u003eHigh performance of TCR: 50 \u0026amp; 25 ppm\/°C and below (per customer request)\u003c\/li\u003e\n \u003cli\u003eLow current noise for sensitive electronic circuits\u003c\/li\u003e\n \u003cli\u003eRoHS compliant and lead-free construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSeries No.\u003c\/th\u003e\n \u003ctd\u003eWF08T \u0026amp; U\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eSize Code\u003c\/th\u003e\n \u003ctd\u003e0805 (2012)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e4.7Ω ~ 2MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Tolerance\u003c\/th\u003e\n \u003ctd\u003e±0.01%, ±0.02%, ±0.05%, ±0.1%, ±0.25%, ±0.5%, ±1.0%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Dissipation at 70°C\u003c\/th\u003e\n \u003ctd\u003e1\/10W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Operating Voltage\u003c\/th\u003e\n \u003ctd\u003e100V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Overload Voltage\u003c\/th\u003e\n \u003ctd\u003e200V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature\u003c\/th\u003e\n \u003ctd\u003e-55°C to +155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eLength (L)\u003c\/th\u003e\n \u003ctd\u003e2.00 ± 0.10 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWidth (W)\u003c\/th\u003e\n \u003ctd\u003e1.25 ± 0.10 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eLead\/Terminal (A)\u003c\/th\u003e\n \u003ctd\u003e0.25 ± 0.20 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOther Dimensions (B, T)\u003c\/th\u003e\n \u003ctd\u003eB: 0.40 ± 0.20 mm, T: 0.50 ± 0.15 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: WF08U4120BTL\u003c\/li\u003e\n \u003cli\u003eManufacturer: WALSIN\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Surface-mount (0805)\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf08u4120btl.pdf\" target=\"_blank\"\u003eWF08U4120BTL Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e"}