Material Options
PA66 p6g, PA66 A RV250 natural, PA66 A3X2G10 black, PA66 x2g5, PBT pcg and special materials on request
E-Core / M-Core Geometry
EE / M
Classic Ferrite Core Coil Formers
Reliable coil formers for small transformers, power transformers, switch-mode power supplies and converter applications.
Product Family
Family Overview.
EE / M is part of NORWE's product system for demanding electrical and electronic applications. The family combines proven core geometry compatibility with reliable manufacturing, material expertise and application-specific configuration options.
Small TransformersPower TransformersSwitch-Mode Power SuppliesConvertersPower Transfer
Family Technical Data
Technical Foundation.
The product family is defined by material options, thermal behavior, insulation requirements and manufacturing features that support reliable long-term performance.
RTI Performance
Typical RTI values from +100°C to +130°C depending on selected material
Soldering Resistance
Maximum soldering temperature up to +350°C for short-term exposure up to 2 seconds
Pin Materials
Tin bronze, tin-plated pins and brass, tin-plated solder blades depending on configuration
Dimensions
Dimensions are available in millimetres and inches according to product variant
Special Materials
Radiation cross-linked material versions are available on request for specific requirements
Product Groups
Select A Product Group.
Choose a product group to access verified NORWE types, order codes, technical product visuals and article-specific request actions.
01
EE 8 - EE 32 Horizontal
Horizontal EE Coil Formers
Horizontal EE coil formers for compact transformers, SMPS and power transfer applications.
Core Range: EE 8 - EE 32Orientation: HorizontalMaterials: PA66 p6g, PA66 A RV250 natural, PA66 A3X2G10 black, PA66 x2g5, PBT pcg
02
EE 12.6 - EE 25 Horizontal / Extended Creepage Distance
Horizontal EE Coil Formers
Horizontal EE versions with increased creepage distance between ferrite core and solder pin.
Core Range: EE 12.6 - EE 25Orientation: HorizontalMaterials: PA66 A RV250 natural
03
EE 8 - EE 32 Vertical
Vertical EE Coil Formers
Vertical EE coil formers for upright PCB assembly and transformer applications.
Core Range: EE 8 - EE 32Orientation: VerticalMaterials: PA66 p6g, PA66 A RV250 natural, PA66 A3X2G10 black, PA66 x2g5, PBT pcg
04
EE 12.6 - EE 25 Vertical / Extended Creepage Distance
Vertical EE Coil Formers
Vertical EE versions with extended creepage distance for demanding insulation requirements.
Core Range: EE 12.6 - EE 25Orientation: VerticalMaterials: PA66 A RV250 natural
05
M 20 - M 74 / E 70 - E 80 Horizontal
M-Core / E-Core Coil Formers
Horizontal coil formers for larger M-core and E-core transformer geometries.
Core Range: M 20 - M 74 / E 70 - E 80Orientation: HorizontalMaterials: Material selection depending on variant and requirement
06
M 20 - M 55 Vertical
M-Core Coil Formers
Vertical M-core coil formers for transformer and power applications.
Core Range: M 20 - M 55Orientation: VerticalMaterials: Material selection depending on variant and requirement
07
Potting Housings
Accessory / Housing
Potting housings for protection, insulation and encapsulated transformer assembly concepts.
Function: Potting and protectionApplication: Encapsulated transformer assemblies and protection class transformersMaterial: PA66 p6g
08
Spring Housings
Accessory / Housing
Spring housings supporting mechanical fixation and assembly requirements.
Function: Mechanical fixation and housing supportApplication: Transformer assembliesMaterials: PA66 eg7 and PA66 A RV250 natural depending on version
09
Clamping Brackets
Assembly Component
Clamping brackets for secure mechanical integration of EE/M coil former assemblies.
Function: Mechanical clampingApplication: Assembly and fixation of core sets and coil formersMaterial: Steel
10
Spring Clips / Spring Clamps
Assembly Component
Spring clips and clamps for secure mounting and assembly support.
Function: Mounting and fixationApplication: Automatic assembly and horizontal or vertical coil former designsMaterial: Stainless steel
Advantages
Product Advantages.
Proven standard geometry for transformer applications
Horizontal and vertical versions available
Extended creepage distance variants for increased insulation requirements
Designed for automated winding processes
Multiple pin, solder blade and assembly configurations
Requirements
Technical Requirements.
Reliable Insulation
Automated Winding
Extended Creepage Distance
Thermal Stability
Lead-Free Solder Compatibility
Engineering Features
Designed For Reliable Manufacturing.
Every product detail supports reliable winding, assembly, insulation and long-term production stability.
01
Wire guidance pins for reliable winding processes
02
Strain relief pins for improved wire handling
03
Spacer feet for defined distance to the printed circuit board
04
Extended flanges to help prevent clamping brackets from slipping
05
Versions suitable for numerically controlled winding machines
06
Modular tooling concepts for fast implementation of customer-specific adaptations
Materials
Engineered Materials.
Material selection supports electrical insulation, thermal stability and long-term reliability in demanding industrial applications.
PA66 p6g / RTI +125°CPA66 A RV250 natural / RTI +100°CPA66 A3X2G10 black / RTI +115°CPA66 x2g5 / RTI +120°CPBT pcg / RTI +130°CRadiation cross-linked materials on request
Material access
Standard materials, UL data and application-specific support.
Review NORWE standard plastic materials and UL-related data, or discuss alternative materials for specific thermal, electrical, processing or compliance requirements.
Technical Capabilities
Verified Technical Performance.
The product family is engineered around material performance, soldering resistance, connection technology and reliable processing.
01
Conventional coil formers with press-fit pins, bent pins or solder blades
02
Tin bronze, tin-plated pins depending on configuration
03
Brass, tin-plated solder blades depending on configuration
04
Maximum soldering temperature up to +350°C for up to 2 seconds
05
Special radiation cross-linked materials available on request
06
Extended creepage distance variants available for increased insulation requirements
Downloads & Drawings
Technical Documents Without Friction.
Technical documentation is connected to the product structure at article level. Current released drawings are supplied through NORWE with the exact product context preserved for engineering and procurement workflows.
Technical Resource
Technical Data
Open the central document center for released technical and compliance documentation.
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Technical Resource
Drawing Information
Select a product group and article to access released article-specific technical drawings directly.
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Technical Resource
Application Support
Clarify product suitability, material questions and production-related requirements with NORWE.
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Technical Resource
Quote Preparation
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Product documentation
Ordering Information
Family-specific ordering guidance for complex configurations, assembly options and order-code interpretation.
Open article ordering data →Product documentation
Supplementary Product Information
Additional technical information for this product family and its article variants.
Request current Supplementary Product Information →Downloads & Drawings
159 released drawings available directly through the articles.
Select the matching product group and article. Released drawings can then be opened directly without submitting a request.
Existing Resource Categories
EE/M Product InformationFerrite Cores EF/ELaminations EE/MSolder Pin OverviewSolder Blade OverviewPlastic Material ListRadiation Cross-Linking
Technical FAQ
Frequently Asked Questions.
EE / M coil formers are plastic winding bodies designed for E-core and M-core transformer geometries. They support reliable winding, insulation and assembly of transformers, converters and switch-mode power supply components.
Horizontal versions are designed for low-profile or horizontal PCB assembly, while vertical versions are designed for upright mounting concepts. The correct version depends on available board space, winding requirements and assembly concept.
Extended creepage distance variants increase the insulation distance between conductive parts such as solder pins and ferrite cores. This supports applications with higher insulation requirements.
Typical material options include glass-fibre reinforced PA66 grades, PBT and special materials such as radiation cross-linked versions on request. RTI values depend on the selected material.
Depending on configuration and material, EE / M coil former assemblies can support short-term soldering temperatures up to +350°C for up to 2 seconds.
Yes. NORWE can support customer-specific adaptations based on application requirements, core geometry, insulation concept, material selection and assembly needs.
Industries
Related Industries.
NORWE supports applications across industries where quality, reliability and technical confidence matter.
Industrial ElectronicsEnergy SystemsIndustrial Automation
Inquiry Engine
Move From Product Interest To Engineering Clarity.
Start with EE / M. NORWE can support your team with technical documents, sample requirements, quotation preparation and application-specific engineering questions.
Discuss Your Application.
Talk to NORWE about EE / M components, technical requirements and application-specific solutions.