High Current SMD Toroidal Common Mode Choke STRF01 Series High Impedance for DC-DC Converters

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High Current SMD Toroidal Common Mode Choke STRF01 Series High Impedance for DC-DC Converters
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Features
Specifications
Inductance: 650uH~15000uH
Rated Current: 1.0A~3.6A
Inductor Value: Fixed Inductor
Transport Package: Carton
Specification: RoHS/SGS/UL/ISO9001
Size: 16.38*14.2*11mm
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SMD Toroidal Common Mode Choke

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Common Mode Choke High Current

Basic Infomation
Place of Origin: China
Brand Name: Shinhom
Certification: RoHS/ISO/UL/CE/IATF16949/CNAS
Model Number: STRF01 Series
Payment & Shipping Terms
Packaging Details: Carton
Delivery Time: 4~8 Weeks
Payment Terms: T/T
Supply Ability: 100000/MONTH
Product Description

STRF01 Series high current common mode inductor,SMT Toroidal Ferrtie Core Common Mode Choke Designed for DC/DC Converter

The STRF01 series high-current SMD toroidal common-mode choke is designed for DC-DC and AC-DC converter applications. The product uses a ferrite toroidal core to provide high common-mode impedance across a wide frequency range, delivering excellent EMI/RFI suppression performance. The low-profile SMD package saves PCB space. The high current capacity and low DCR ensure efficient power conversion. The operating temperature range is -40°C to +125°C (including self-temperature rise), suitable for various harsh environments. It is widely used in DC-DC/AC-DC converters, desktop/laptop power supplies, communication equipment, automotive electronics, and LCD TVs.

Features

  • Toroidal ferrite core – high common-mode impedance
  • Excellent EMI/RFI suppression performance
  • Low-profile SMD design – saves space
  • High current carrying capacity
  • Low DCR – low power loss
  • Operating temperature – -40°C to +125°C
  • Compatible with reflow soldering
  • Lead-free – RoHS compliant

Applications

  • DC-DC converters
  • AC-DC converters
  • Input filtering (series mode)
  • EMI/RFI suppression
  • Desktop/laptop power supplies
  • LCD monitors
  • Communication equipment
  • Automotive electronic systems

TECHNICAL INFORMATION

IDC
Temp. rise 40℃ Max
Inductance test
HP4284A 100KHz 0.1V
RDC
QuadTech 1880 Milliohmmeter
Solder methods
Vapor Phase, Infrared Reflow
Resistance to soldering heat
260℃ for 10 seconds
Solvent resistance
Conforms to MIL-STD-202E
Weight
1.5grams TYP
Tape & Reel
700/reel

More sizes to choose from

High Current SMD Toroidal Common Mode Choke STRF01 Series High Impedance for DC-DC Converters

Note: Product specifications can be customized.

FAQ

Q: What are the advantages of the toroidal core compared to other core structures?

A: The toroidal core has a closed magnetic circuit structure. Magnetic flux is concentrated inside the core, resulting in very low leakage flux. EMI radiation is much lower than I-core or open-core inductors. The toroidal core also has high magnetic permeability, requiring fewer turns for the same inductance value. This results in lower DCR and higher efficiency.

Q: How to select the rated current?

A: When selecting, ensure the maximum operating current does not exceed the rated value, and consider temperature derating. We recommend selecting a rated current at least 1.2 to 1.5 times the maximum operating current to prevent core saturation, which would reduce filtering performance. Also ensure the component temperature (ambient temperature + temperature rise) does not exceed 125°C.

Q: Does this product support reflow soldering? What is the temperature resistance?

A: Yes. The STRF01 series uses an SMD package and is compatible with reflow soldering. The low-profile design and small size make it suitable for automated SMT production lines. For the specific reflow temperature profile, please refer to the product datasheet.

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Get in touch with us
Contact Person : Jack wang
Tel : 13909218465
Fax : 86-029-87851840
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