Ei28 Core
Overview
Product sourcing insights & recommendations
The EI28 core remains a standard workhorse in the transformer and power electronics industry, with market demand projected to grow steadily through 2026. The global transformer market, which heavily utilizes these cores, is expected to reach $5.23 billion by 2034 Alibaba.
Product Insights & Specifications
The EI28 designation typically refers to E-lamination cores with a 28mm width. They are available in two primary material types:
* Silicon Steel (Laminated): Traditional EI28 cores, often made from Z11 silicon steel, are optimized for low-frequency applications (50/60Hz). They are widely used in low-power power supplies, battery chargers, and audio isolation transformers Inductor-TransformersIhuagroup.
* Soft Ferrite (Mn-Zn PC40): Used for high-frequency switching power supplies (SMPS) and induction welding. Ferrite cores like the PC40 grade offer high magnetic permeability and efficiency at higher frequencies .
Market Trends
* Price Dynamics: Wholesale pricing for silicon steel laminations ranges from $0.73 to $2.00 per kg, while individual ferrite core sets can be as low as $0.04 to $0.06 per piece for high-volume orders AlibabaAlibaba.
* Application Shifts: There is a rising adoption of compact power conversion solutions, particularly in household appliances, telecommunications, and IoT devices IhuagroupIhuagroup.
* Customization: Market demand is shifting toward "factory direct" sourcing that offers customized input/output voltage ratings and RoHS/ISO9001 compliance for international export AlibabaIhuagroup.
I have compiled a detailed list of current market listings and technical specifications for EI28 cores in the file below.
You can further refine your market strategy with these options:
Ei28 Ferrite Core Mn Zn Pc40
Products · 3 lists
EI28 Vertical Soft Ferrite Core Magnet Mn-Zn PC40 Ferrite Core
Shaanxi Magason-Tech Electronics Co., Ltd.🇨🇳CN6 yrs
China Wholesale Price PC40 MnZn Ferrite Core Big Magnetic Ferrite EE Core Power Core for Transformer Bobbin
Kingstar Electronics Technology Co., Ltd.🇨🇳CN7 yrs
Wholesale Cheap Cores Mn-Zn Ni Zn Uf Pc40 Pc95 Uu Uf80c NiZn EE Ferrite Core Uf80 Customize Soft Magnet Core Big Size UF Shape
Chengdu Amoeba Magnetic Co., Ltd.🇨🇳CN13 yrs
Customized High Frequency Toroidal Soft Magnetic Mn-zn Ferrite Core Industrial Ferrite PC40 Core Ferrite Ring Magnet
Shenzhen Powerway Technology Co., Ltd.verified🇨🇳CN2 yrs
Free Sample Factory Direct Sales Rohs ISO9001 MnZn Pc40 EE19 EE28 EE30 EE33 EE35 EE40 EE42 Type Soft Ferrite Transformer Core
EE Type Soft Magnetic Transformer Core Mn-Zn Ferrite Core E16 EE28 EE35/28 EE42 PC40 Ferrite Core
Shaanxi Fullstar Electronics Co., Ltd.verified🇨🇳CN10 yrs
PC44 PC40 MnZn Material EE 70 High Transformer Ferrite Core
Huzhou Careful Magnetism Co., Ltd.🇨🇳CN16 yrs
PM87 Pc40 Mnzn Ferrite Core for Chinese Manufacturer
Huzhou Kade Electronic & Technology Co., Ltd.🇨🇳CN12 yrs
PC40/PC44/PC95 Grade RM Ferrite Cores for High Power Applications
Lianyungang Baibo New Material Co., Ltd.verified🇨🇳CN10 yrs
High Frequency Vertical Transformer EE13 MnZn Ferrite Core PC40/PC44 Material for Power Transformer Inductor inductance
Dongguan City Heci Gongyuan Electronics Co., Ltd.🇨🇳CN1 yr
Toroidal Ferrite Core PC40 80x50x20mm MnZn Ring Core for SMPS, Industrial Controller & Servo Press Equipment
Hangzhou Careful Electronics Co., Ltd.🇨🇳CN1 yr
High Permeability PC40 Ferrite Green Core Toroid Core for Power Inductor
Huizhou Mingda Precise Electronics Co.,ltd.verified🇨🇳CN17 yrs
Ferrite Core EE140 Mn-Zn Soft Ferrite Transformer Cores PC40 PC44 N87 3C90
Nanjing Hengchuang Magnetic Electronics Co., Ltd.🇨🇳CN17 yrs
EE Type Soft Ferrite Core MnZn Transformer Ferrite Magnetic Core With Pc40 Grade
Tianchang City Hengyue Electronic Co., Ltd.🇨🇳CN11 yrs
Balin China Factory High Quality Reasonable Price MnZn Large Magnetic Ferrite Toroidal Core Large Ferrite Ring Cores
Xiamen Balin New Materials Co., Ltd.verified🇨🇳CN14 yrs
Hot Sale Pc40 Ferrite Core Mn-zn Soft Magnet Ferrite Core for Transformer
Huizhou Magtop Electronic Co., Ltd.verified🇨🇳CN8 yrs
Mn-Zn Ferrite Magnetic Cores Low Loss PC/EE/ER/EFD Material for High-Frequency Transformers & Inductors
Lianyungang Highborn Technology Co., Ltd.verified🇨🇳CN19 yrs
High Power PC40 Ferrite Rod Frequency Welding Prevent-Interference Induction Bar Magnet Mn-Zn Ferrite Magnet Powder Cylinder
Dongguan Huan Lin Magnetic Industry Co., Ltd.verified🇨🇳CN6 yrs
Wholesale Free Samples Customizable Green PC40 T25*15*8 Manganese-Zinc Ferrite High Permeability Magnetic Ring
PC40 Ferrite Soft Industrial Toroidal Core Magnet
AMC Group Limitedverified🇨🇳CN22 yrs
PC40 Material Air Gapped EE Series Ferrite Cores with 3% Tolerance ISO/ROHS Certified Epoxy Coated (EE65/EE85/EE110)
Wuxi Weibang Transformer Manufacture Co., Ltd.verified🇨🇳CN8 yrs
High Quality EFD15 MnZn Ferrite Core PC44/PC95 Material for High Frequency Transformer & Switching Power Supply
Chongqing Seatrend Technology And Development Co., Ltd.🇨🇳CN17 yrs
High Permeability Mn-Zn Ferrite Core for H.F. Induction Welding Impeders
Jinan JinPin Roller Mould Co., Ltd.🇨🇳CN15 yrs
P Core for Industrial Magnet Soft Magnetic Power Supply Transformer Pot Ferrite Core PC40 Custom Cutting Processing Service
Huizhou Gaussian Strong Electronics Co., Ltd.verified🇨🇳CN4 yrsRelated Searches
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Sources & References
27 sources cited · Verified industry data & reports
Hec Science Technology Hong Kong Company Limited Imports ...
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