
CRGO E-Cores
Engineered for Compact Magnetic Assemblies
Product Overview
CRGO E-Cores
At LaminaCore, we supply precision CRGO (Cold-Rolled Grain-Oriented) silicon steel E-Cores, designed for compact laminated assemblies where low core loss and coil accessibility are key. Our E-Cores are supplied in standard or custom sizes, supporting electrical steel grades from M4 to HiB with thicknesses from 0.27 mm to 0.20 mm.
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E-Cores are ideal for switch-mode power supplies, transformers, chokes, and magnetic devices where efficiency, low weight, and space-saving design are critical.

What Are E-Cores and Where Are They Used?
E-Cores are laminated magnetic cores shaped like the letter “E.” Combined with an “I” or “center leg” section, they form a closed magnetic loop around a coil. Their open window simplifies coil mounting while supporting precise winding geometries and compact device designs.
Applications


Our laminated E-Cores are widely used across electronics, energy, and automation sectors:
01
High-Frequency Power Transformers
Optimized for compact, lightweight systems in high-speed switching environments such as SMPS and telecommunications.
03
Common-Mode Chokes for EMI Filtering
Provides superior electromagnetic interference suppression in power and signal lines for cleaner, safer operation.
04
DC-DC Converters and UPS Systems
Enhances stability and conversion efficiency in uninterruptible power supplies and industrial voltage regulation.
02
Power Factor Correction (PFC) Inductors
Reduces reactive power loss and improves energy efficiency in AC-DC power supply units.
04
Current Transformers for Smart Grids and Energy Systems
Delivers precise current sensing in utility meters, distributed energy networks, and load monitoring.
04
Electric Vehicle Chargers and Traction Systems
Supports efficient energy transfer and EMI control in EV charging infrastructure and high-current mobility platforms.