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Low Loss Ferrite SQ Common Mode Inductor for Reliable Signal Noise Filtering
Place of Origin:
China
Brand Name:
CHIPSEN
Certification:
ISO9001:2015, IATF16949:2016, U/L, ROHS, CQC, CE, cUL
Model Number:
SQ
Price:
＄22.5-25.8/pieces,1000-10000pcs
Packaging Details:
Blister trays + export cartons; palletized for bulk orders. Optimized for 20GP/40GP loading. Custom available.
Delivery Time:
7-21work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
1000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
low loss ferrite common mode inductor
,SQ common mode choke for noise filtering
,reliable signal noise filtering inductor
Highlight:
Superior EMI Noise Suppression Low Stray Capacitance Design Stable High-impedance Performance
OEM/ODM:
Acceptable
Working Frequency Range:
10kHz - 500kHz
Bobbin Material:
Bakelite / Phenolic / Plastics
Components:
Ferrite Core, Copper Wire, Bobbin
Output Current:
0.5A - 15A High Current
Inductance Range:
0.5mH - 50mH
Certification:
ISO9001 2015, IATF16949 2016, ROHS, CE, CUL
Product Description
Low Loss Ferrite SQ Common Mode Inductor for Reliable Signal Noise Filtering
Technical Specification & Showcase: SQ Series High-Stability Common Mode Choke
Product Introduction & Strategic Selling Points
Overall Product Introduction
The SQ series common mode inductor represents a high-efficiency solution for electromagnetic interference (EMI) suppression in modern power electronics. As switching frequencies in power supplies continue to rise, the demand for compact, high-inductance components that can handle significant current without thermal runaway has led to the widespread adoption of the SQ "Square-Core" architecture.
Built upon advanced Mn-Zn (Manganese-Zinc) magnetic material science, the SQ series is designed to eliminate common-mode noise across a broad frequency spectrum. The unique structure utilizes a flat or square magnetic core which provides a larger cross-sectional area compared to standard wire-wound filters of the same height.
Condensed High-Impact Selling Points
- High-Mass Square Core Geometry: Utilizing premium Mn-Zn ferrite materials with high saturation magnetic flux density, ensuring stable noise-filtering impedance even under heavy load surges
- Superior Power Density: SQ architecture offers significant volume-to-performance advantage over toroidal chokes, enabling higher inductance values in tighter PCB footprints
- Minimal DC Resistance (DCR): Optimized winding window and high-purity oxygen-free copper achieve exceptionally low DCR values, reducing internal heat generation and energy waste
- Exceptional EMI/EMC Suppression: Specifically tuned for common-mode noise rejection from 10kHz to 10MHz, helping meet strict international emissions standards
- Robust Integrated Mounting: Reinforced flame-retardant base and precision tinned terminals designed for mechanical stability in high-vibration environments
- Total Galvanic Isolation & Safety: Engineered with high-spec insulation barriers that withstand high-voltage grid transients up to 3000V AC+
Detailed Technical Parameters & Engineering Analysis
The technical profile of the SQ series is defined by its precision and scalability. The following table provides foundational data for our industrial series, which can be further customized based on specific current and impedance requirements.
Detailed Specification Table (Example Ranges)
| Technical Parameter | Industrial Specification / Value Range |
|---|---|
| Model Designation | SQ Series (e.g., SQ1212, SQ1515, SQ2418) |
| Inductance Range (L) | 0.5mH - 50mH (Customizable per request) |
| Rated Current (Idc) | 0.5A - 15A (Depending on wire gauge and size) |
| Working Frequency | 10kHz - 500kHz (Optimized for Switching Noise) |
| DC Resistance (DCR) | 5mΩ - 200mΩ (Optimized for Low-Loss) |
| Hi-Pot / Isolation | 2000V AC - 3500V AC / 50Hz / 60s |
| Core Material | High-Permeability Mn-Zn Ferrite (Low-Loss Grade) |
| Insulation Class | Class B (130°C) Standard / Class F (155°C) Available |
| Operating Temp Range | -40°C to +125°C (Ambient + Temperature Rise) |
| Mounting Type | Vertical Through-Hole (with Integrated Base) |
| Termination Type | Tinned High-Conductivity Copper Pins |
| Safety Standard | Compliant with RoHS / REACH / CE / International Norms |
Engineering Insight & Parameter Significance
For power electronics engineers, the Inductance vs. Frequency characteristic is the most vital metric of the SQ series. Unlike lower-quality chokes that lose effectiveness as frequencies rise, the SQ's high-grade Mn-Zn core maintains high impedance across a wide bandwidth, effectively attenuating both fundamental switching noise and higher-order harmonics.
The Saturation Current (Isat) is another critical parameter; because the SQ core has a larger effective cross-section, it offers a "soft saturation" curve, providing a safety margin during sudden load changes in motor drives or charging stations.
The Dielectric Strength (Hi-Pot) of up to 3500V AC ensures the inductor acts as an impenetrable isolation barrier between the primary power line and grounded chassis or secondary electronics, essential for safety compliance in medical and laboratory environments.
Product Features & Advanced Manufacturing Advantages
The SQ series is distinguished by its "Industrial Ruggedness" and "Technical Precision." The foremost feature is the Square-Core Magnetic Circuit. Traditional toroidal chokes suffer from magnetic flux leakage at winding junctions, which can interfere with nearby sensitive circuits. The SQ series uses a precision-ground magnetic core that forms a tightly closed loop, ensuring the magnetic field is almost entirely trapped within the core.
Another major engineering advantage is our Automated Precision Winding Technology. We utilize multi-spindle CNC winding machines that monitor wire tension in real-time, preventing wire overlapping and insulation abrasion that cause internal shorts in hand-wound toroidal products.
The SQ series often employs Flat-Wire Winding options for high-current applications. Flat wire maximizes the window fill factor, allowing for larger copper cross-section in the same physical space, drastically reducing AC resistance caused by skin effect at high frequencies.
The Vacuum Pressure Impregnation (VPI) process provides the final layer of professional quality. Every SQ inductor is submerged in a vacuum chamber where high-grade insulating varnish is pulled into every microscopic gap, bonding the component into a solid, monolithic block that is moisture-proof, resistant to corrosive gases, and eliminates audible humming from magnetostriction.
Strategic Product Applications across Modern Industries
The versatility of the SQ series makes it a staple across a vast array of high-tech sectors:
Industrial Automation and Control: Standard choice for input EMI filter stage of PLCs and variable frequency drives, protecting sensitive digital systems from power-line transients and ensuring EMC compliance.
Renewable Energy and Smart Grid: Prized for high current handling and thermal stability in solar inverters, wind turbine controllers, and Battery Energy Storage Systems, maintaining stable inductance across wide temperature ranges.
Electric Vehicle (EV) and Charging Infrastructure: Critical component in On-Board Chargers and DC Fast Charging stations, filtering high-frequency switching noise while surviving years of road vibration and thermal cycling.
Company Introduction & Quality Assurance Standard
Company Introduction
Chipsen Electronics is a professional manufacturer specializing in high-performance transformers and magnetic components, with more than 26 years of in-depth manufacturing expertise in this industry.
Founded in 2000, Chipsen has grown steadily over decades. We now run 4 production bases, with strong manufacturing capacity covering over 7,200 square meters and staffing over 400 skilled employees, guaranteeing stable production capacity and fast order delivery for customers worldwide.
We hold authoritative certifications including ISO9001, ISO14001 and IATF16949. Our products are approved by UL Class B/F/H, CQC, RoHS and REACH. We have obtained 36+ utility patents, supported by our robust in-house R&D team delivering targeted solutions for temperature reduction, noise cancellation and coupled radiation conductivity.
Company Advantages
- Full Service Customization: Rapid design support within 24 to 48 hours based on your drawings or specifications
- Extensive Product Portfolio: 200+ product types including high frequency transformers, toroidal transformers, flyback transformers, inductors, filters, and common mode chokes
- Advanced Manufacturing Capability: Automated winding and assembly machines improving efficiency by up to 8x while maintaining consistent quality
- Strict Quality Control System: 100% testing procedures including electrical performance, insulation, and reliability tests
- High Voltage & High Frequency Expertise: Specialized in 5KV to 40KV high voltage transformers and high-frequency power solutions
- Flexible MOQ & Fast Lead Time: Support from prototype orders to bulk production with lead times as fast as 7 to 15 days
- OEM/ODM Supported with Competitive Factory Direct Pricing
- Strong R&D Team With Rapid Response
- Stable Supply Chain For Long Term Cooperation
- Export Experience Across Europe, North America and Asia
Our Mission
To deliver reliable energy efficient transformer solutions that empower our customers products and enhance their market competitiveness worldwide.
Frequently Asked Questions
Q: How long does it take to prepare samples?
A: 3-5 days for new samples, 1 day for samples in stock.
Q: How are samples shipped?
A: When customers cover freight costs, we help choose the most economical shipping method.
Q: Do you provide technical support for customized products?
A: Yes, our strong R&D team provides free technical support for customizations in voltage, power, inductance, dimensions, core materials, and more.
Q: Do you accept flexible minimum order quantities?
A: We support flexible MOQ based on your industry and product requirements. Please share your application areas and estimated annual usage.
Q: Can you ensure proper packaging for large sea shipments?
A: Yes, we provide goods packed in strong export cartons, on wooden pallets, and shrink-wrapped for protection.
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