The EATON ELECTRONICS DR74-330-R is a high-performance, shielded drum core power inductor designed for demanding electronic applications. Manufactured in China (COO: CN), this inductor features a ferrite core material optimized for high power density and efficiency in various power management circuits.
Key Features:
Inductance: 33 µH with ±20% tolerance
Magnetically shielded drum core design for reduced electromagnetic interference (EMI)
Current Handling: Up to 1.35 A (peak)
Low DCR: 0.166 Ω (typical)
Voltage-μs: 21.0 (typical)
RoHS compliant (RoHs: Y)
Suitable for applications such as DC-DC converters, noise filtering, and power supply circuits
Electrical Specifications:
Part Number
Rated Inductance (μH)
OCL1 ±20% (μH)
I 2 rms (A)
I 3 sat (A) Peak
DCR4 (Ω) Typ.
Volt-μsec5 Typ.
DR74-330-R
33.0
34.41
1.31
1.35
0.166
21.0
Mechanical & Environmental Details:
Storage Temperature Range: -40 °C to +125 °C
Operating Temperature Range: -40 °C to +125 °C
Solder Reflow Temperature: Compliant with J-STD-020 (latest revision)
For detailed specifications and application guidance, please refer to the datasheet linked above. Ensure compatibility with your design requirements before procurement.
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{"id":10013516005693,"title":"DR74-330-R","handle":"dr74-330-r","description":"\u003ch3\u003eProduct Description: EATON ELECTRONICS Inductor Power Shielded Drum Core 33uH (Part Number: DR74-330-R)\u003c\/h3\u003e\n\u003cp\u003eThe EATON ELECTRONICS DR74-330-R is a high-performance, shielded drum core power inductor designed for demanding electronic applications. Manufactured in China (COO: CN), this inductor features a ferrite core material optimized for high power density and efficiency in various power management circuits.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInductance: 33 µH with ±20% tolerance\u003c\/li\u003e\n\u003cli\u003eMagnetically shielded drum core design for reduced electromagnetic interference (EMI)\u003c\/li\u003e\n\u003cli\u003eCurrent Handling: Up to 1.35 A (peak)\u003c\/li\u003e\n\u003cli\u003eLow DCR: 0.166 Ω (typical)\u003c\/li\u003e\n\u003cli\u003eVoltage-μs: 21.0 (typical)\u003c\/li\u003e\n\u003cli\u003eRoHS compliant (RoHs: Y)\u003c\/li\u003e\n\u003cli\u003eSuitable for applications such as DC-DC converters, noise filtering, and power supply circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eRated Inductance (μH)\u003c\/th\u003e\n\u003cth\u003eOCL1 ±20% (μH)\u003c\/th\u003e\n\u003cth\u003eI 2 rms (A)\u003c\/th\u003e\n\u003cth\u003eI 3 sat (A) Peak\u003c\/th\u003e\n\u003cth\u003eDCR4 (Ω) Typ.\u003c\/th\u003e\n\u003cth\u003eVolt-μsec5 Typ.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDR74-330-R\u003c\/td\u003e\n\u003ctd\u003e33.0\u003c\/td\u003e\n\u003ctd\u003e34.41\u003c\/td\u003e\n\u003ctd\u003e1.31\u003c\/td\u003e\n\u003ctd\u003e1.35\u003c\/td\u003e\n\u003ctd\u003e0.166\u003c\/td\u003e\n\u003ctd\u003e21.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical \u0026amp; Environmental Details:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStorage Temperature Range: -40 °C to +125 °C\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -40 °C to +125 °C\u003c\/li\u003e\n\u003cli\u003eSolder Reflow Temperature: Compliant with J-STD-020 (latest revision)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: DR74-330-R\u003c\/li\u003e\n\u003cli\u003eManufacturer: EATON ELECTRONICS\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: Not specified\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/ETON\/ETON-S-A0008372465\/ETON-S-A0008372465-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDisclaimer:\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and application guidance, please refer to the datasheet linked above. Ensure compatibility with your design requirements before procurement.\u003c\/p\u003e","published_at":"2025-08-10T18:13:17+05:30","created_at":"2025-08-10T18:13:17+05:30","vendor":"Waldom Electonics","type":"Inductors, Chokes \u0026 Coils","tags":["Chokes","Coils","EATON-ELE","IMPORT_CSV","Inductor","Power","Smd","WLDM"],"price":18294,"price_min":18294,"price_max":18294,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50578514968893,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"DR74-330-R","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"DR74-330-R","public_title":null,"options":["Default Title"],"price":18294,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"DR74-330-R","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/DR74-330-R_42817213_ee9e4baf.jpg?v=1754829800"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DR74-330-R_42817213_ee9e4baf.jpg?v=1754829800","options":["Title"],"media":[{"alt":null,"id":45763735552317,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DR74-330-R_42817213_ee9e4baf.jpg?v=1754829800"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/DR74-330-R_42817213_ee9e4baf.jpg?v=1754829800","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description: EATON ELECTRONICS Inductor Power Shielded Drum Core 33uH (Part Number: DR74-330-R)\u003c\/h3\u003e\n\u003cp\u003eThe EATON ELECTRONICS DR74-330-R is a high-performance, shielded drum core power inductor designed for demanding electronic applications. Manufactured in China (COO: CN), this inductor features a ferrite core material optimized for high power density and efficiency in various power management circuits.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInductance: 33 µH with ±20% tolerance\u003c\/li\u003e\n\u003cli\u003eMagnetically shielded drum core design for reduced electromagnetic interference (EMI)\u003c\/li\u003e\n\u003cli\u003eCurrent Handling: Up to 1.35 A (peak)\u003c\/li\u003e\n\u003cli\u003eLow DCR: 0.166 Ω (typical)\u003c\/li\u003e\n\u003cli\u003eVoltage-μs: 21.0 (typical)\u003c\/li\u003e\n\u003cli\u003eRoHS compliant (RoHs: Y)\u003c\/li\u003e\n\u003cli\u003eSuitable for applications such as DC-DC converters, noise filtering, and power supply circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eRated Inductance (μH)\u003c\/th\u003e\n\u003cth\u003eOCL1 ±20% (μH)\u003c\/th\u003e\n\u003cth\u003eI 2 rms (A)\u003c\/th\u003e\n\u003cth\u003eI 3 sat (A) Peak\u003c\/th\u003e\n\u003cth\u003eDCR4 (Ω) Typ.\u003c\/th\u003e\n\u003cth\u003eVolt-μsec5 Typ.\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDR74-330-R\u003c\/td\u003e\n\u003ctd\u003e33.0\u003c\/td\u003e\n\u003ctd\u003e34.41\u003c\/td\u003e\n\u003ctd\u003e1.31\u003c\/td\u003e\n\u003ctd\u003e1.35\u003c\/td\u003e\n\u003ctd\u003e0.166\u003c\/td\u003e\n\u003ctd\u003e21.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical \u0026amp; Environmental Details:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStorage Temperature Range: -40 °C to +125 °C\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -40 °C to +125 °C\u003c\/li\u003e\n\u003cli\u003eSolder Reflow Temperature: Compliant with J-STD-020 (latest revision)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: DR74-330-R\u003c\/li\u003e\n\u003cli\u003eManufacturer: EATON ELECTRONICS\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: Not specified\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/ETON\/ETON-S-A0008372465\/ETON-S-A0008372465-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDisclaimer:\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and application guidance, please refer to the datasheet linked above. Ensure compatibility with your design requirements before procurement.\u003c\/p\u003e"}
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.
