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{"title":"Small EI Transformer Core with Low Core Loss High Saturation Flux Density and","imgUrl":"https:\/\/img.chinax.com\/nimg\/4c\/99\/3d3d33795b6d3828fcfdf570fc1f-200x200-1\/small_ei_transformer_core_with_low_core_loss_high_saturation_flux_density_and.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"High-grade silicon steel universal motor punching with 0.5 mm thickness and C5","imgUrl":"https:\/\/img.chinax.com\/nimg\/4a\/79\/9850d31c4fbf5bec73ff3b1c2ca6-200x200-1\/high_grade_silicon_steel_universal_motor_punching_with_0_5_mm_thickness_and_c5_insulation_coating_for_efficient_motor_laminations.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"High Frequency Transformer Core with High-Grade Silicon Steel for 10 kHz to 500","imgUrl":"https:\/\/img.chinax.com\/nimg\/17\/2d\/5e0158f2f9f6fbb638a925e139d8-200x200-1\/high_frequency_transformer_core_with_high_grade_silicon_steel_for_10_khz_to_500_khz_and_customizable_dimensions.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"High-Grade Silicon Steel Drone Motor Core with Low Core Loss and Customizable","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/6a\/c2873b08f33aa3f72d9b88e55b47-200x200-1\/high_grade_silicon_steel_drone_motor_core_with_low_core_loss_and_customizable_dimensions.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"High-efficiency EC motor with high-grade silicon steel core and precise","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/e9\/c315efb520a9131296fe2246b079-200x200-1\/high_efficiency_ec_motor_with_high_grade_silicon_steel_core_and_precise_adjustable_speed_for_industrial_automation.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":",L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"EI Type Transformer Core with High Magnetic Efficiency, Reduced Energy Loss, and","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/f9\/40c7a9bad6535da6b1412284358a-200x200-1\/ei_type_transformer_core_with_high_magnetic_efficiency_2c_reduced_energy_loss_2c_and_mechanical_stability_for_power_transformers.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":",L\/C,D\/A,D\/P,T\/T,Western Union"}}
{"title":"High Energy Efficiency Single Phase Asynchronous Motor Core with Low Noise and","imgUrl":"https:\/\/img.chinax.com\/nimg\/cc\/eb\/d59c49ea3f2770c653599ea22240-200x200-1\/high_energy_efficiency_single_phase_asynchronous_motor_core_with_low_noise_and_vibration_for_thermal_stability.jpg","attrs":{"Certification":"ISO9001&ISO14001","Place of Origin":"Guangdong, China","Price":"Negotiable","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union"}}
Our Small EI Transformer Core is a high-performance magnetic component engineered for efficient power conversion and signal isolation in compact electronic devices. Utilizing precision-stamped silicon steel laminations, this core forms the essential component of small transformers, inductors, and chokes. The classic interlocking design ensures a robust magnetic circuit with minimal air gaps, maximizing magnetic flux linkage for reliable performance in low to medium-power applications.
Typical Applications
Switch-Mode Power Supplies (SMPS) for consumer electronics
AC/DC adapters and chargers
Audio equipment input/output transformers
Control circuits, relays, and small power supplies
Lighting ballasts and LED drivers
Product Specifications
Parameter Category
Specification
Details / Typical Value
Core Material
Electrical Steel (Silicon Steel)
High-grade, cold-rolled, grain-oriented or non-oriented silicon steel laminations
Core Type & Construction
EI Lamination Stack
Precision-stamped E and I laminations, interleaved and stacked
Key Performance Parameters
Stacking Factor
> 0.95
Key Performance Parameters
Saturation Flux Density (Bs)
~1.5 - 1.8 T (dependent on silicon steel grade)
Key Performance Parameters
Core Loss
Low loss, optimized for 50/60 Hz to several kHz operation
Physical Specifications
Available Sizes
Multiple standard sizes (EI-28, EI-35, EI-41, EI-48). Custom sizes available
Physical Specifications
Lamination Thickness
Standard options: 0.35mm or 0.5mm
Physical Specifications
Surface Treatment
Blue or clear insulation coating to minimize inter-lamination eddy currents
Mechanical & Thermal
Operating Temperature Range
-40°C to +120°C (or higher, depending on insulation class)
Mechanical & Thermal
Mounting
Designed for easy bobbin/winding assembly and secure mounting
Specific numerical values for Bs, core loss, and exact dimensions are determined by the silicon steel grade and core size. Please consult our datasheets for precise specifications.
Product Advantages
Superior Magnetic Performance & High Efficiency
Low Core Loss: High-quality silicon steel reduces hysteresis and eddy current losses for cooler operation and higher efficiency
High Saturation Flux Density: Enables smaller core sizes for compact transformer designs
Excellent Permeability: Provides efficient magnetic flux path, minimizing magnetizing current requirements
Design Flexibility: Available in wide range of standard sizes and silicon steel grades
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Exporter,Manufacturer,Trading Company
Year Established:
2004
Total Annual:
16 billion-18 billion
Employee Number:
500~600
Ecer Certification：
Verified Supplier
Mellow Group have been a professional manufacturer in stainless steel industry since 2004.
As a leading stainless steel enterprise specialized in stainless steel coils and customized surface stainless steel material in China, Mellow group have total employees more than 600 people.
With our effective... Mellow Group have been a professional manufacturer in stainless steel industry since 2004.
As a leading stainless steel enterprise specialized in stainless steel coils and customized surface stainless steel material in China, Mellow group have total employees more than 600 people.
With our effective...
