The WALSIN WW25WR030FTL is a high-quality, surface-mount resistor designed for demanding electronic applications. Constructed with a high-grade ceramic (aluminum oxide) body, this resistor offers excellent reliability, stability, and power dissipation capabilities. It is RoHS exemption free and lead-free, suitable for environmentally conscious manufacturing.
Product Features
High power rating of 2W (at 70°C ambient temperature)
Low Temperature Coefficient of Resistance (TCR) for stable performance
Constructed with a resistive paste applied to a ceramic substrate, laser trimmed for precise resistance value
RoHS exemption free and lead-free design
Available in size 2512 (6432)
Resistance tolerance options: ±1%, ±5%
Suitable for power supply, battery pack, charger, and DC-DC power converter applications
Reliable solder joints achievable with standard infrared soldering profiles
Additional Details
Each resistor is marked with a 4-digit code (for sizes 2512, 2010, 1210, 1206, 0805) or 3-digit code (for 0603) to indicate resistance value
Derating curve available to determine power dissipation based on ambient temperature
For more detailed specifications, please refer to the datasheet.
Note: The RoHS compliance status is not specified. Please verify if RoHS compliance is required for your application.
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":10003371491645,"title":"WW25WR030FTL","handle":"ww25wr030ftl","description":"\u003ch3\u003eWALSIN WW25WR030FTL Resistor - 0Ω 1% 2W Thick Film Chip Resistor\u003c\/h3\u003e\n\n\u003cp\u003eThe WALSIN WW25WR030FTL is a high-quality, surface-mount resistor designed for demanding electronic applications. Constructed with a high-grade ceramic (aluminum oxide) body, this resistor offers excellent reliability, stability, and power dissipation capabilities. It is RoHS exemption free and lead-free, suitable for environmentally conscious manufacturing.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHigh power rating of 2W (at 70°C ambient temperature)\u003c\/li\u003e\n \u003cli\u003eLow Temperature Coefficient of Resistance (TCR) for stable performance\u003c\/li\u003e\n \u003cli\u003eConstructed with a resistive paste applied to a ceramic substrate, laser trimmed for precise resistance value\u003c\/li\u003e\n \u003cli\u003eRoHS exemption free and lead-free design\u003c\/li\u003e\n \u003cli\u003eAvailable in size 2512 (6432)\u003c\/li\u003e\n \u003cli\u003eResistance tolerance options: ±1%, ±5%\u003c\/li\u003e\n \u003cli\u003eSuitable for power supply, battery pack, charger, and DC-DC power converter applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSeries\u003c\/th\u003e\n \u003ctd\u003eWW25W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003ctd\u003eWW25WR030FTL\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eManufacturer\u003c\/th\u003e\n \u003ctd\u003eWALSIN\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCountry of Origin (COO)\u003c\/th\u003e\n \u003ctd\u003eCN\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eUOM\u003c\/th\u003e\n \u003ctd\u003eEA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eECCN\u003c\/th\u003e\n \u003ctd\u003eEAR99\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct Type\u003c\/th\u003e\n \u003ctd\u003eResistors\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCategory\u003c\/th\u003e\n \u003ctd\u003eResistors | Fixed Resistors\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePackage Type\u003c\/th\u003e\n \u003ctd\u003e2512 (6432)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDatasheet\u003c\/th\u003e\n \u003ctd\u003e\u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-ww25wr030ftl.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eElectrical and Mechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e0.010Ω ~ 0.910Ω (E24 series)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Tolerance\u003c\/th\u003e\n \u003ctd\u003e±1%, ±5%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Value (Ω)\u003c\/th\u003e\n \u003ctd\u003e0.010 ~ 0.910\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTemperature Coefficient of Resistance (ppm\/°C)\u003c\/th\u003e\n \u003ctd\u003e10 - 20mΩ: ±1000\u003cbr\u003e22 - 39mΩ: ±600\u003cbr\u003e40 - 47mΩ: ±200\u003cbr\u003e50 - 91mΩ: ±100\u003cbr\u003e100 - 910mΩ: ±100\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Dissipation at 70°C\u003c\/th\u003e\n \u003ctd\u003e2\/3 W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature Range\u003c\/th\u003e\n \u003ctd\u003e-55°C to +155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSymbol\u003c\/th\u003e\n \u003cth\u003eL (mm)\u003c\/th\u003e\n \u003cth\u003eW (mm)\u003c\/th\u003e\n \u003cth\u003eT (mm)\u003c\/th\u003e\n \u003cth\u003eC (mm)\u003c\/th\u003e\n \u003cth\u003eD (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eWW25W\u003c\/td\u003e\n \u003ctd\u003e6.30 ± 0.20\u003c\/td\u003e\n \u003ctd\u003e3.10 ± 0.20\u003c\/td\u003e\n \u003ctd\u003e0.60 ± 0.15\u003c\/td\u003e\n \u003ctd\u003e0.60 ± 0.25\u003c\/td\u003e\n \u003ctd\u003e0.90 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSoldering and Handling\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eImmersible in solder bath at 260°C for 10 seconds\u003c\/li\u003e\n \u003cli\u003eSolderability tested at 235°C for 2 seconds\u003c\/li\u003e\n \u003cli\u003eReliable solder joints achievable with standard infrared soldering profiles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEach resistor is marked with a 4-digit code (for sizes 2512, 2010, 1210, 1206, 0805) or 3-digit code (for 0603) to indicate resistance value\u003c\/li\u003e\n \u003cli\u003eDerating curve available to determine power dissipation based on ambient temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-ww25wr030ftl.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: The RoHS compliance status is not specified. Please verify if RoHS compliance is required for your application.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eDatasheet 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":"2025-08-05T02:24:53+05:30","created_at":"2025-08-05T02:24:53+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["2W","Fixed","RES","Resistors","STD_IMG","WALSI-X","WLDM"],"price":1511,"price_min":1511,"price_max":1511,"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":50550233399613,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WW25WR030FTL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"WW25WR030FTL","public_title":null,"options":["Default Title"],"price":1511,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"WW25WR030FTL","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_b56d259b-1deb-4bc8-8120-e7d16e86af38.jpg?v=1754340893"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_b56d259b-1deb-4bc8-8120-e7d16e86af38.jpg?v=1754340893","options":["Title"],"media":[{"alt":null,"id":45670091456829,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_b56d259b-1deb-4bc8-8120-e7d16e86af38.jpg?v=1754340893"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_b56d259b-1deb-4bc8-8120-e7d16e86af38.jpg?v=1754340893","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eWALSIN WW25WR030FTL Resistor - 0Ω 1% 2W Thick Film Chip Resistor\u003c\/h3\u003e\n\n\u003cp\u003eThe WALSIN WW25WR030FTL is a high-quality, surface-mount resistor designed for demanding electronic applications. Constructed with a high-grade ceramic (aluminum oxide) body, this resistor offers excellent reliability, stability, and power dissipation capabilities. It is RoHS exemption free and lead-free, suitable for environmentally conscious manufacturing.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHigh power rating of 2W (at 70°C ambient temperature)\u003c\/li\u003e\n \u003cli\u003eLow Temperature Coefficient of Resistance (TCR) for stable performance\u003c\/li\u003e\n \u003cli\u003eConstructed with a resistive paste applied to a ceramic substrate, laser trimmed for precise resistance value\u003c\/li\u003e\n \u003cli\u003eRoHS exemption free and lead-free design\u003c\/li\u003e\n \u003cli\u003eAvailable in size 2512 (6432)\u003c\/li\u003e\n \u003cli\u003eResistance tolerance options: ±1%, ±5%\u003c\/li\u003e\n \u003cli\u003eSuitable for power supply, battery pack, charger, and DC-DC power converter applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSeries\u003c\/th\u003e\n \u003ctd\u003eWW25W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003ctd\u003eWW25WR030FTL\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eManufacturer\u003c\/th\u003e\n \u003ctd\u003eWALSIN\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCountry of Origin (COO)\u003c\/th\u003e\n \u003ctd\u003eCN\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eUOM\u003c\/th\u003e\n \u003ctd\u003eEA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eECCN\u003c\/th\u003e\n \u003ctd\u003eEAR99\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eProduct Type\u003c\/th\u003e\n \u003ctd\u003eResistors\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCategory\u003c\/th\u003e\n \u003ctd\u003eResistors | Fixed Resistors\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePackage Type\u003c\/th\u003e\n \u003ctd\u003e2512 (6432)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDatasheet\u003c\/th\u003e\n \u003ctd\u003e\u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-ww25wr030ftl.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eElectrical and Mechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e0.010Ω ~ 0.910Ω (E24 series)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Tolerance\u003c\/th\u003e\n \u003ctd\u003e±1%, ±5%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Value (Ω)\u003c\/th\u003e\n \u003ctd\u003e0.010 ~ 0.910\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTemperature Coefficient of Resistance (ppm\/°C)\u003c\/th\u003e\n \u003ctd\u003e10 - 20mΩ: ±1000\u003cbr\u003e22 - 39mΩ: ±600\u003cbr\u003e40 - 47mΩ: ±200\u003cbr\u003e50 - 91mΩ: ±100\u003cbr\u003e100 - 910mΩ: ±100\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Dissipation at 70°C\u003c\/th\u003e\n \u003ctd\u003e2\/3 W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature Range\u003c\/th\u003e\n \u003ctd\u003e-55°C to +155°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSymbol\u003c\/th\u003e\n \u003cth\u003eL (mm)\u003c\/th\u003e\n \u003cth\u003eW (mm)\u003c\/th\u003e\n \u003cth\u003eT (mm)\u003c\/th\u003e\n \u003cth\u003eC (mm)\u003c\/th\u003e\n \u003cth\u003eD (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eWW25W\u003c\/td\u003e\n \u003ctd\u003e6.30 ± 0.20\u003c\/td\u003e\n \u003ctd\u003e3.10 ± 0.20\u003c\/td\u003e\n \u003ctd\u003e0.60 ± 0.15\u003c\/td\u003e\n \u003ctd\u003e0.60 ± 0.25\u003c\/td\u003e\n \u003ctd\u003e0.90 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSoldering and Handling\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eImmersible in solder bath at 260°C for 10 seconds\u003c\/li\u003e\n \u003cli\u003eSolderability tested at 235°C for 2 seconds\u003c\/li\u003e\n \u003cli\u003eReliable solder joints achievable with standard infrared soldering profiles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEach resistor is marked with a 4-digit code (for sizes 2512, 2010, 1210, 1206, 0805) or 3-digit code (for 0603) to indicate resistance value\u003c\/li\u003e\n \u003cli\u003eDerating curve available to determine power dissipation based on ambient temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-ww25wr030ftl.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: The RoHS compliance status is not specified. Please verify if RoHS compliance is required for your application.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eDatasheet 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"}
