OHMITE MANUFACTURING TK20PR400JE Current Sense Resistor - Through Hole, 20W, 0.4Ω
Enhance your electronic designs with the OHMITE MANUFACTURING TK20PR400JE current sense resistor, a reliable and high-performance component designed for precise current measurement in power applications. This through-hole resistor features advanced thin film technology, ensuring stability, low noise, and excellent high-frequency performance.
Product Features
Power Rating: 20W (heat sink dependent; proper heatsinking required)
Resistance Value: 0.4Ω
Tolerance: 1%, 2%, or 5% (specify as needed)
Maximum Working Voltage: 150V (3KΩ-10KΩ), √20*R (for 0.01Ω-1KΩ)
Maximum Working Current: 10A (for 0.01Ω-0.1Ω), √20/R (for 0.3Ω-10KΩ)
Thermal Resistance: <6.25°C/W
Constructed with thick or thin film chip resistor elements
Terminals: Tin plated copper (100Sn)
Heatsink plate: Black anodized aluminum
RoHS Compliant: Yes
Discontinued: Available until stock depletion (discontinued May 2013)
Specifications
Material
Resistive element: Thick or thin film chip resistor
Mounting: Vertical mounting with tapped for 6-32 screw
Additional Information
This product is designed for use with proper heatsinking. The maximum base plate temperature must be monitored and kept within specified limits to ensure optimal performance. Attaching a thermocouple to the side of the resistor's base plate is recommended for accurate temperature monitoring.
For detailed technical specifications and application guidelines, please refer to the datasheet.
Part Number: TK20PR400JE
Manufacturer: OHMITE MANUFACTURING
Country of Origin: MX
UOM: EA
ECCN: EAR99
Package Type: TUBE
Note: This product has been discontinued. Please check stock availability or search online for more details.
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{"id":10014624481597,"title":"TK20PR400JE","handle":"tk20pr400je","description":"\u003ch3\u003eOHMITE MANUFACTURING TK20PR400JE Current Sense Resistor - Through Hole, 20W, 0.4Ω\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the OHMITE MANUFACTURING TK20PR400JE current sense resistor, a reliable and high-performance component designed for precise current measurement in power applications. This through-hole resistor features advanced thin film technology, ensuring stability, low noise, and excellent high-frequency performance.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePower Rating: 20W (heat sink dependent; proper heatsinking required)\u003c\/li\u003e\n \u003cli\u003eResistance Value: 0.4Ω\u003c\/li\u003e\n \u003cli\u003eTolerance: 1%, 2%, or 5% (specify as needed)\u003c\/li\u003e\n \u003cli\u003eMaximum Working Voltage: 150V (3KΩ-10KΩ), √20*R (for 0.01Ω-1KΩ)\u003c\/li\u003e\n \u003cli\u003eMaximum Working Current: 10A (for 0.01Ω-0.1Ω), √20\/R (for 0.3Ω-10KΩ)\u003c\/li\u003e\n \u003cli\u003eThermal Resistance: \u0026lt;6.25°C\/W\u003c\/li\u003e\n \u003cli\u003eConstructed with thick or thin film chip resistor elements\u003c\/li\u003e\n \u003cli\u003eTerminals: Tin plated copper (100Sn)\u003c\/li\u003e\n \u003cli\u003eHeatsink plate: Black anodized aluminum\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDiscontinued: Available until stock depletion (discontinued May 2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eMaterial\u003c\/th\u003e\n \u003ctd\u003eResistive element: Thick or thin film chip resistor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePower Rating\u003c\/th\u003e\n \u003ctd\u003e20W (heat sink dependent; max case temp 150°C)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e10mΩ - 10KΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTolerance\u003c\/th\u003e\n \u003ctd\u003e5%, 1%, 2%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Working Voltage\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-1KΩ: √20*R, 3KΩ-10KΩ: 150V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Working Current\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-0.1Ω: 10A, 0.3Ω-10KΩ: √20\/R\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTCR\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-0.1Ω: ±300ppm, 0.3Ω-10KΩ: ±200ppm, 4Ω-10KΩ: ±50ppm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eThermal Resistance, R\u003csub\u003eTH\u003c\/sub\u003e\n\u003c\/th\u003e\n \u003ctd\u003e\u0026lt;6.25°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDiameter: 0.177\" (4.5mm)\u003c\/li\u003e\n \u003cli\u003eLead Spacing: 0.394\" (10mm)\u003c\/li\u003e\n \u003cli\u003eOverall Length: 0.591\" (15mm)\u003c\/li\u003e\n \u003cli\u003ePackage Type: TUBE\u003c\/li\u003e\n \u003cli\u003eMounting: Vertical mounting with tapped for 6-32 screw\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis product is designed for use with proper heatsinking. The maximum base plate temperature must be monitored and kept within specified limits to ensure optimal performance. Attaching a thermocouple to the side of the resistor's base plate is recommended for accurate temperature monitoring.\u003c\/p\u003e\n\n\u003cp\u003eFor detailed technical specifications and application guidelines, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/res_tk_tn.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003ePart Number: TK20PR400JE\u003cbr\u003e\nManufacturer: OHMITE MANUFACTURING\u003cbr\u003e\nCountry of Origin: MX\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: TUBE\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: This product has been discontinued. Please check stock availability or search online for more details.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-11T01:49:59+05:30","created_at":"2025-08-11T01:49:59+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["Current","IMPORT_CSV","OHMIT","Resistors","WLDM"],"price":40607,"price_min":40607,"price_max":40607,"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":50582825337149,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"TK20PR400JE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"TK20PR400JE","public_title":null,"options":["Default Title"],"price":40607,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"TK20PR400JE","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/TK20PR400JE_12037808_e2e8c30d.jpg?v=1754857203"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TK20PR400JE_12037808_e2e8c30d.jpg?v=1754857203","options":["Title"],"media":[{"alt":null,"id":45768736342333,"position":1,"preview_image":{"aspect_ratio":1.35,"height":200,"width":270,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TK20PR400JE_12037808_e2e8c30d.jpg?v=1754857203"},"aspect_ratio":1.35,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TK20PR400JE_12037808_e2e8c30d.jpg?v=1754857203","width":270}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eOHMITE MANUFACTURING TK20PR400JE Current Sense Resistor - Through Hole, 20W, 0.4Ω\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the OHMITE MANUFACTURING TK20PR400JE current sense resistor, a reliable and high-performance component designed for precise current measurement in power applications. This through-hole resistor features advanced thin film technology, ensuring stability, low noise, and excellent high-frequency performance.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePower Rating: 20W (heat sink dependent; proper heatsinking required)\u003c\/li\u003e\n \u003cli\u003eResistance Value: 0.4Ω\u003c\/li\u003e\n \u003cli\u003eTolerance: 1%, 2%, or 5% (specify as needed)\u003c\/li\u003e\n \u003cli\u003eMaximum Working Voltage: 150V (3KΩ-10KΩ), √20*R (for 0.01Ω-1KΩ)\u003c\/li\u003e\n \u003cli\u003eMaximum Working Current: 10A (for 0.01Ω-0.1Ω), √20\/R (for 0.3Ω-10KΩ)\u003c\/li\u003e\n \u003cli\u003eThermal Resistance: \u0026lt;6.25°C\/W\u003c\/li\u003e\n \u003cli\u003eConstructed with thick or thin film chip resistor elements\u003c\/li\u003e\n \u003cli\u003eTerminals: Tin plated copper (100Sn)\u003c\/li\u003e\n \u003cli\u003eHeatsink plate: Black anodized aluminum\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDiscontinued: Available until stock depletion (discontinued May 2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eMaterial\u003c\/th\u003e\n \u003ctd\u003eResistive element: Thick or thin film chip resistor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePower Rating\u003c\/th\u003e\n \u003ctd\u003e20W (heat sink dependent; max case temp 150°C)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eResistance Range\u003c\/th\u003e\n \u003ctd\u003e10mΩ - 10KΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTolerance\u003c\/th\u003e\n \u003ctd\u003e5%, 1%, 2%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Working Voltage\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-1KΩ: √20*R, 3KΩ-10KΩ: 150V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Working Current\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-0.1Ω: 10A, 0.3Ω-10KΩ: √20\/R\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTCR\u003c\/th\u003e\n \u003ctd\u003e0.01Ω-0.1Ω: ±300ppm, 0.3Ω-10KΩ: ±200ppm, 4Ω-10KΩ: ±50ppm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eThermal Resistance, R\u003csub\u003eTH\u003c\/sub\u003e\n\u003c\/th\u003e\n \u003ctd\u003e\u0026lt;6.25°C\/W\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDiameter: 0.177\" (4.5mm)\u003c\/li\u003e\n \u003cli\u003eLead Spacing: 0.394\" (10mm)\u003c\/li\u003e\n \u003cli\u003eOverall Length: 0.591\" (15mm)\u003c\/li\u003e\n \u003cli\u003ePackage Type: TUBE\u003c\/li\u003e\n \u003cli\u003eMounting: Vertical mounting with tapped for 6-32 screw\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis product is designed for use with proper heatsinking. The maximum base plate temperature must be monitored and kept within specified limits to ensure optimal performance. Attaching a thermocouple to the side of the resistor's base plate is recommended for accurate temperature monitoring.\u003c\/p\u003e\n\n\u003cp\u003eFor detailed technical specifications and application guidelines, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/res_tk_tn.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003ePart Number: TK20PR400JE\u003cbr\u003e\nManufacturer: OHMITE MANUFACTURING\u003cbr\u003e\nCountry of Origin: MX\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: TUBE\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: This product has been discontinued. Please check stock availability or search online for more details.\u003c\/em\u003e\u003c\/p\u003e"}
