Introducing the WALSIN WSN series fixed SMD metal film resistor, designed for high reliability and precision in electronic applications. This resistor features a resistance value of 6.49kΩ with a tolerance of 0.1%, suitable for demanding environments such as medical equipment and other high-performance devices.
High-performance metal film resistor with 0.1% resistance tolerance
Resistance value of 6.49kΩ (6K49)
Maximum working voltage of 25V
RoHS compliant and lead-free
Suitable for high-reliability applications including medical equipment
Low noise characteristics for sensitive electronic circuits
Technical Specifications
Series
Size Code
Resistance Range
Tolerance
Temperature Coefficient (TCR)
Max Dissipation at 70°C
Max Operating Voltage
Max Overload Voltage
Operating Temperature
WF04U
0402 (1005)
10Ω ~ 12KΩ
0.1%
50 & 25 ppm/°C
0.25W
50V
100V
-55°C to +155°C
Physical Dimensions
Dimension
Value
Unit
Length (L)
0.6
mm
Width (W)
0.3
mm
Lead/Terminal (A)
0.10
mm
Other Dimensions (B, T)
0.15, 0.03
mm
Additional Information
Designed for high stability and low noise in precision circuits
Suitable for applications requiring high reliability and stability
Compliance with RoHS standards ensures environmentally friendly manufacturing
For more detailed specifications and technical data, please refer to the datasheet. If additional information is needed, please search the internet for the part number WF04U6491BTL.
{"id":10027960303933,"title":"WF04U6491BTL","handle":"wf04u6491btl","description":"\u003ch3\u003eWALSIN WSN RES 6K49 0.1% 25V 0402 THIN FILM\u003c\/h3\u003e\n\u003cp\u003eIntroducing the WALSIN WSN series fixed SMD metal film resistor, designed for high reliability and precision in electronic applications. This resistor features a resistance value of 6.49kΩ with a tolerance of 0.1%, suitable for demanding environments such as medical equipment and other high-performance devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e WF04U6491BTL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e WALSIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e 0402 (1005)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Resistors | Fixed Resistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf04u6491btl.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance metal film resistor with 0.1% resistance tolerance\u003c\/li\u003e\n\u003cli\u003eResistance value of 6.49kΩ (6K49)\u003c\/li\u003e\n\u003cli\u003eMaximum working voltage of 25V\u003c\/li\u003e\n\u003cli\u003eRoHS compliant and lead-free\u003c\/li\u003e\n\u003cli\u003eSuitable for high-reliability applications including medical equipment\u003c\/li\u003e\n\u003cli\u003eLow noise characteristics for sensitive electronic circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003cth\u003eSize Code\u003c\/th\u003e\n\u003cth\u003eResistance Range\u003c\/th\u003e\n\u003cth\u003eTolerance\u003c\/th\u003e\n\u003cth\u003eTemperature Coefficient (TCR)\u003c\/th\u003e\n\u003cth\u003eMax Dissipation at 70°C\u003c\/th\u003e\n\u003cth\u003eMax Operating Voltage\u003c\/th\u003e\n\u003cth\u003eMax Overload Voltage\u003c\/th\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWF04U\u003c\/td\u003e\n\u003ctd\u003e0402 (1005)\u003c\/td\u003e\n\u003ctd\u003e10Ω ~ 12KΩ\u003c\/td\u003e\n\u003ctd\u003e0.1%\u003c\/td\u003e\n\u003ctd\u003e50 \u0026amp; 25 ppm\/°C\u003c\/td\u003e\n\u003ctd\u003e0.25W\u003c\/td\u003e\n\u003ctd\u003e50V\u003c\/td\u003e\n\u003ctd\u003e100V\u003c\/td\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 border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength (L)\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth (W)\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead\/Terminal (A)\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Dimensions (B, T)\u003c\/td\u003e\n\u003ctd\u003e0.15, 0.03\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for high stability and low noise in precision circuits\u003c\/li\u003e\n\u003cli\u003eSuitable for applications requiring high reliability and stability\u003c\/li\u003e\n\u003cli\u003eCompliance with RoHS standards ensures environmentally friendly manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and technical data, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf04u6491btl.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. If additional information is needed, please search the internet for the part number WF04U6491BTL.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:14:30+05:30","created_at":"2025-08-16T05:14:30+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["25V","Fixed","IMPORT_CSV","IMPORT_PT2","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":50626356347197,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WF04U6491BTL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"WF04U6491BTL","public_title":null,"options":["Default Title"],"price":499,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"WF04U6491BTL","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_da838daa-1141-4a6d-a302-b29f70eb4114.jpg?v=1755301472"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_da838daa-1141-4a6d-a302-b29f70eb4114.jpg?v=1755301472","options":["Title"],"media":[{"alt":null,"id":45862472450365,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_da838daa-1141-4a6d-a302-b29f70eb4114.jpg?v=1755301472"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_da838daa-1141-4a6d-a302-b29f70eb4114.jpg?v=1755301472","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eWALSIN WSN RES 6K49 0.1% 25V 0402 THIN FILM\u003c\/h3\u003e\n\u003cp\u003eIntroducing the WALSIN WSN series fixed SMD metal film resistor, designed for high reliability and precision in electronic applications. This resistor features a resistance value of 6.49kΩ with a tolerance of 0.1%, suitable for demanding environments such as medical equipment and other high-performance devices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e WF04U6491BTL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e WALSIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e 0402 (1005)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Resistors | Fixed Resistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf04u6491btl.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance metal film resistor with 0.1% resistance tolerance\u003c\/li\u003e\n\u003cli\u003eResistance value of 6.49kΩ (6K49)\u003c\/li\u003e\n\u003cli\u003eMaximum working voltage of 25V\u003c\/li\u003e\n\u003cli\u003eRoHS compliant and lead-free\u003c\/li\u003e\n\u003cli\u003eSuitable for high-reliability applications including medical equipment\u003c\/li\u003e\n\u003cli\u003eLow noise characteristics for sensitive electronic circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003cth\u003eSize Code\u003c\/th\u003e\n\u003cth\u003eResistance Range\u003c\/th\u003e\n\u003cth\u003eTolerance\u003c\/th\u003e\n\u003cth\u003eTemperature Coefficient (TCR)\u003c\/th\u003e\n\u003cth\u003eMax Dissipation at 70°C\u003c\/th\u003e\n\u003cth\u003eMax Operating Voltage\u003c\/th\u003e\n\u003cth\u003eMax Overload Voltage\u003c\/th\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWF04U\u003c\/td\u003e\n\u003ctd\u003e0402 (1005)\u003c\/td\u003e\n\u003ctd\u003e10Ω ~ 12KΩ\u003c\/td\u003e\n\u003ctd\u003e0.1%\u003c\/td\u003e\n\u003ctd\u003e50 \u0026amp; 25 ppm\/°C\u003c\/td\u003e\n\u003ctd\u003e0.25W\u003c\/td\u003e\n\u003ctd\u003e50V\u003c\/td\u003e\n\u003ctd\u003e100V\u003c\/td\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 border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength (L)\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth (W)\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead\/Terminal (A)\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Dimensions (B, T)\u003c\/td\u003e\n\u003ctd\u003e0.15, 0.03\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for high stability and low noise in precision circuits\u003c\/li\u003e\n\u003cli\u003eSuitable for applications requiring high reliability and stability\u003c\/li\u003e\n\u003cli\u003eCompliance with RoHS standards ensures environmentally friendly manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and technical data, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-wsn\/wsn-wf04u6491btl.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. If additional information is needed, please search the internet for the part number WF04U6491BTL.\u003c\/p\u003e\u003cbr\u003e"}
