The TDK SPM4015T-4R7M-LR is a high-performance general purpose inductor designed for power circuits, manufactured by TDK CORPORATION in China. This surface-mount device (SMD) comes in a reel packaging and complies with RoHS standards, ensuring environmentally friendly manufacturing. The inductor features a magnetic shield type wound structure utilizing metallic magnetic material, offering excellent performance in compact applications.
Key Features:
Magnetic shield type wound inductor suitable for power circuits
Low-profile design for space-constrained applications
Enables large current handling with low DC resistance (Rdc)
Maintains stable inductance with minimal variance in high-temperature environments
Good DC superimposition characteristics
Reduced hum noise due to integrated molded coil structure
Applications: Ideal for use in tablets, notebooks, HDDs, servers, VRMs, compact power supply modules, and other electronic devices requiring reliable power inductors.
Inductance variance in high-temperature environments is minimized
Rated current based on the smaller of Isat or Itemp, with measurement equipment specified for accuracy
Temperature range: –40°C to +125°C
Individual weight: 0.12 g
Mechanical Dimensions:
Dimension (mm)
Value
Length
4.4 ± 0.2
Width
4.4 ± 0.2
Height
1.65
Packaging: Reel dimensions are ø13.3 ± 0.5 mm with a quantity of 8.0 ± 0.1 units per reel. Recommended land pattern and reflow profiles are provided for optimal mounting.
For detailed technical specifications and application guidance, please refer to the Datasheet.
Note: Please request delivery specifications for further details to ensure proper and safe use. The contents are subject to change without notice due to product upgrades.
Unfortunately I havent tested the 5G, Only difficult part was connecting antennas. But everything is good, by default it runs on Qualcom's QMI mode, Had to switch to MBIM and it works good with Windows. Planning to run with OpenWRT soon.
{"id":10026069688637,"title":"SPM4015T-4R7M-LR","handle":"spm4015t-4r7m-lr","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eTDK SPM4015T-4R7M-LR\u003c\/strong\u003e is a high-performance general purpose inductor designed for power circuits, manufactured by \u003cstrong\u003eTDK CORPORATION\u003c\/strong\u003e in China. This surface-mount device (SMD) comes in a reel packaging and complies with RoHS standards, ensuring environmentally friendly manufacturing. The inductor features a magnetic shield type wound structure utilizing metallic magnetic material, offering excellent performance in compact applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMagnetic shield type wound inductor suitable for power circuits\u003c\/li\u003e\n\u003cli\u003eLow-profile design for space-constrained applications\u003c\/li\u003e\n\u003cli\u003eEnables large current handling with low DC resistance (Rdc)\u003c\/li\u003e\n\u003cli\u003eMaintains stable inductance with minimal variance in high-temperature environments\u003c\/li\u003e\n\u003cli\u003eGood DC superimposition characteristics\u003c\/li\u003e\n\u003cli\u003eReduced hum noise due to integrated molded coil structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for use in tablets, notebooks, HDDs, servers, VRMs, compact power supply modules, and other electronic devices requiring reliable power inductors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eInductance\u003c\/th\u003e\n\u003cth\u003eTolerance\u003c\/th\u003e\n\u003cth\u003eRated Current (A)\u003c\/th\u003e\n\u003cth\u003eDC Resistance (mΩ)\u003c\/th\u003e\n\u003cth\u003eSize (mm)\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.7 µH\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003ctd\u003e203.6\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003e4.4 x 4.4 x 1.65\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/product.tdk.com\/en\/search\/inductor\/inductor\/smd\/info?part_no=SPM4015T-4R7M-LR\u0026amp;utm_source=inductor_commercial_power_spm4015-lr_en.pdf\u0026amp;utm_medium=catalog\" target=\"_blank\"\u003eSPM4015T-4R7M-LR\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInductance variance in high-temperature environments is minimized\u003c\/li\u003e\n\u003cli\u003eRated current based on the smaller of Isat or Itemp, with measurement equipment specified for accuracy\u003c\/li\u003e\n\u003cli\u003eTemperature range: –40°C to +125°C\u003c\/li\u003e\n\u003cli\u003eIndividual weight: 0.12 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension (mm)\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e4.4 ± 0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e4.4 ± 0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e1.65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e Reel dimensions are ø13.3 ± 0.5 mm with a quantity of 8.0 ± 0.1 units per reel. Recommended land pattern and reflow profiles are provided for optimal mounting.\u003c\/p\u003e\n\u003cp\u003eFor detailed technical specifications and application guidance, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-tdk\/tdk-spm4015t-4r7m-lr.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please request delivery specifications for further details to ensure proper and safe use. The contents are subject to change without notice due to product upgrades.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T00:46:37+05:30","created_at":"2025-08-15T00:46:39+05:30","vendor":"Waldom Electonics","type":"Inductors, Chokes \u0026 Coils","tags":["Chokes","Coils","IMPORT_CSV","Inductor","Power","Smd","TDK","WLDM"],"price":8870,"price_min":8870,"price_max":8870,"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":50621173301565,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SPM4015T-4R7M-LR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SPM4015T-4R7M-LR","public_title":null,"options":["Default Title"],"price":8870,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"SPM4015T-4R7M-LR","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/SPM4015T-4R7M-LR_49451187_1af0236e.jpg?v=1755198999"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SPM4015T-4R7M-LR_49451187_1af0236e.jpg?v=1755198999","options":["Title"],"media":[{"alt":null,"id":45843738329405,"position":1,"preview_image":{"aspect_ratio":1.5,"height":200,"width":300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SPM4015T-4R7M-LR_49451187_1af0236e.jpg?v=1755198999"},"aspect_ratio":1.5,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SPM4015T-4R7M-LR_49451187_1af0236e.jpg?v=1755198999","width":300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eTDK SPM4015T-4R7M-LR\u003c\/strong\u003e is a high-performance general purpose inductor designed for power circuits, manufactured by \u003cstrong\u003eTDK CORPORATION\u003c\/strong\u003e in China. This surface-mount device (SMD) comes in a reel packaging and complies with RoHS standards, ensuring environmentally friendly manufacturing. The inductor features a magnetic shield type wound structure utilizing metallic magnetic material, offering excellent performance in compact applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMagnetic shield type wound inductor suitable for power circuits\u003c\/li\u003e\n\u003cli\u003eLow-profile design for space-constrained applications\u003c\/li\u003e\n\u003cli\u003eEnables large current handling with low DC resistance (Rdc)\u003c\/li\u003e\n\u003cli\u003eMaintains stable inductance with minimal variance in high-temperature environments\u003c\/li\u003e\n\u003cli\u003eGood DC superimposition characteristics\u003c\/li\u003e\n\u003cli\u003eReduced hum noise due to integrated molded coil structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for use in tablets, notebooks, HDDs, servers, VRMs, compact power supply modules, and other electronic devices requiring reliable power inductors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eInductance\u003c\/th\u003e\n\u003cth\u003eTolerance\u003c\/th\u003e\n\u003cth\u003eRated Current (A)\u003c\/th\u003e\n\u003cth\u003eDC Resistance (mΩ)\u003c\/th\u003e\n\u003cth\u003eSize (mm)\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.7 µH\u003c\/td\u003e\n\u003ctd\u003e±20%\u003c\/td\u003e\n\u003ctd\u003e203.6\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003e4.4 x 4.4 x 1.65\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/product.tdk.com\/en\/search\/inductor\/inductor\/smd\/info?part_no=SPM4015T-4R7M-LR\u0026amp;utm_source=inductor_commercial_power_spm4015-lr_en.pdf\u0026amp;utm_medium=catalog\" target=\"_blank\"\u003eSPM4015T-4R7M-LR\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInductance variance in high-temperature environments is minimized\u003c\/li\u003e\n\u003cli\u003eRated current based on the smaller of Isat or Itemp, with measurement equipment specified for accuracy\u003c\/li\u003e\n\u003cli\u003eTemperature range: –40°C to +125°C\u003c\/li\u003e\n\u003cli\u003eIndividual weight: 0.12 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension (mm)\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e4.4 ± 0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e4.4 ± 0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e1.65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e Reel dimensions are ø13.3 ± 0.5 mm with a quantity of 8.0 ± 0.1 units per reel. Recommended land pattern and reflow profiles are provided for optimal mounting.\u003c\/p\u003e\n\u003cp\u003eFor detailed technical specifications and application guidance, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-tdk\/tdk-spm4015t-4r7m-lr.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please request delivery specifications for further details to ensure proper and safe use. The contents are subject to change without notice due to product upgrades.\u003c\/p\u003e\u003cbr\u003e"}
