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33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
Specifications
Model Number :
330
DCR :
0.01Ω to 1Ω
MOQ :
1K
Delivery Time :
7-14 work days (Negotiable)
Core Material :
Ferrite
Payment Terms :
T/T
Brand Name :
CHIPSEN
Operating Temperature :
-40°C to +125°C
Place of Origin :
China
Inductance :
1µH to 1000µH
Price :
＄0.5-1.8/pieces
Self Resonant Frequency :
1MHz to 100MHz
Certification :
UL/cUL Class B/F/H, VDE, CQC
Package Size :
0402, 0603, 0805, 1206, 1210, etc.
Supply Ability :
10000pcs
Description
Compact High Current 330 SMD Power Inductor Low DCR Stable for DC DC Converter
The 330 marking commonly represents a nominal inductance of 33 µH. The following values represent typical project-discussion requirements used by international buyers when evaluating a molded SMD power inductor.
Rated current, saturation current, DCR, temperature rise, and package dimensions cannot be determined by the 330 marking alone. Final ratings depend on the package size, magnetic material, internal conductor, winding structure, operating frequency, DC bias, ripple current, cooling conditions, and allowable temperature rise.
Industry Applications Overview
Industry Typical Application Typical Inductance Current Range Switching Frequency Key Parameters
Industrial DC DC Converter Buck, boost, and isolated-converter output filtering 33 µH nominal 1 to 10 A 100 kHz to 1 MHz Inductance under DC bias, saturation current, RMS current, DCR
Industrial Automation PLC modules, controllers, sensors, actuators 33 µH 0.5 to 8 A 100 kHz to 1 MHz Inductance stability, DCR, efficiency, EMI
Solar and Energy Storage BMS, communication control board, gate-driver support 33 µH nominal 1 to 10 A 100 kHz to 1 MHz DC-bias performance, ripple-current capability, DCR
EV Charging Electronics Auxiliary converters, communication modules, control systems 33 µH 1 to 15 A 200 kHz to 2 MHz Saturation current, RMS current, DCR, thermal performance
Product Description
The 330 Molded Power SMD Inductor is a compact surface-mount magnetic component designed for energy storage, current smoothing, ripple filtering, and EMI reduction in switching power supplies.
The 330 top marking commonly indicates a nominal inductance of 33 µH. However, the marking does not define the complete specification. Two inductors with the same 330 marking may have different:
  • Package dimensions
  • Inductance tolerances
  • Saturation currents
  • RMS current ratings
  • DCR values
  • Magnetic materials
  • Temperature-rise limits
Product Construction
Construction Item Standard Reference or Custom Option
Product Type Molded SMD power inductor
Top Marking 330
Common Marking Interpretation 33 µH nominal inductance
Magnetic Structure Molded shielded magnetic body
Magnetic Material Application-specific magnetic composite
Internal Winding Enameled copper winding
Terminal Type Integrated surface-mount terminals
Key Characteristics
  • Compact Molded Construction: Integrated molded body combines magnetic material and winding for high-density PCB layouts
  • High Current Capability: Optimized for required RMS and peak currents
  • Low DCR Options: Reduced conduction loss and voltage drop
  • Stable Inductance Under DC Bias: Maintains useful inductance as DC current increases
  • Magnetic Shielding: Reduced stray magnetic flux compared to unshielded inductors
Applications
  • Industrial DC DC converters
  • Buck and boost converters
  • Point-of-load regulators
  • PLC control boards
  • Solar inverter control electronics
  • EV charging electronics
  • Telecom power modules
  • Server power supplies
  • Medical equipment
  • LED drivers
Quality Assurance
Our comprehensive quality control includes incoming material inspection, design review, in-process control, electrical testing, thermal validation, mechanical inspection, and sample validation to ensure product reliability and performance.
Frequently Asked Questions
Q1: What does the 330 marking mean?
The 330 marking commonly represents 33 µH. The first two digits are significant figures and the final digit indicates the number of zeros in microhenries. Always check the approved datasheet as marking systems can vary.
Q2: Does 330 define the package size?
No. The marking normally identifies inductance rather than physical dimensions. Package size and footprint must be confirmed through the drawing.
Q3: Is the rated current fixed for every 330 inductor?
No. Rated current depends on package size, conductor DCR, magnetic material, temperature-rise criterion, PCB copper area, and cooling conditions.
Product Image
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
Why Choose Chipsen
  • Application-Specific Customization: Developed around your actual electrical and thermal requirements
  • OEM and ODM Support: Full customization of specifications and packaging
  • Engineering Collaboration: Technical review of all critical parameters
  • Prototype Support: MOQ of 100 pieces with prototype quantities available
  • Responsive Project Handling: Drawing target within 3 days, samples within 7 days
  • Warranty Support: Standard 5-year warranty with extended options available
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33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter

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Product Detail
Model Number :
330
DCR :
0.01Ω to 1Ω
MOQ :
1K
Delivery Time :
7-14 work days (Negotiable)
Core Material :
Ferrite
Payment Terms :
T/T
Contact Supplier
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33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter
33uH 4A Shielded SMD Power Inductor 330 for Industrial DC DC Converter

Dongguan Chipsen Electronics Technology Co., Ltd.

Verified Supplier
1 Years
guangdong, dongguan
Since 2007
Business Type :
Manufacturer
Main Products :
High Frequency Flyback Transformer, High Frequency SMPS Transformer, High Frequency Pulse Transformer
Total Annual :
28820000-29820000
Employee Number :
400~450
Certification Level :
Verified Supplier
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