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Compact High Current 330 SMD Inductor Low DCR Stable For DC DC Converter
Place of Origin:
China
Brand Name:
CHIPSEN
Certification:
UL/cUL Class B/F/H, VDE, CQC
Model Number:
330
Minimum Order Quantity:
1K
Price:
＄0.5-1.8/pieces
Delivery Time:
7-14 work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
10000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
High Current SMD Inductor
,330 SMD Inductor
,High Current smd shielded inductor
Operating Temperature:
-40°C To +125°C
DCR:
0.01Ω To 1Ω
Package Size:
0402, 0603, 0805, 1206, 1210, Etc.
Inductance:
1µH To 1000µH
Core Material:
Ferrite
Self Resonant Frequency:
1MHz To 100MHz
Product 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
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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