Core Families
ER, ERL and ERT ferrite core systems depending on application requirements
Extended Round Centre Leg Geometry
ER
High-Efficiency Power Conversion
Coil formers and accessories for ER, ERL and ERT ferrite core systems used in modern high-efficiency power electronics, switch-mode power supplies and converter applications.
Product Family
Family Overview.
ER 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.
Switch-Mode Power SuppliesPower ConvertersTelecommunication Power SystemsIndustrial Power ElectronicsHigh-Efficiency Transformers
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.
Material System
PA66 p6g and selected high-temperature thermoplastics depending on configuration
RTI Performance
Up to +125°C and higher depending on selected material system
Soldering Resistance
Up to +350°C for short-term soldering exposure depending on configuration
Connection Technologies
Tin-plated solder pins and solder blade configurations depending on application
Customization
Customer-specific modifications possible through modular tooling concepts
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
ER Coil Formers
Power Transformer Coil Formers
Coil formers for ER ferrite core systems designed for efficient winding utilization and high power density applications.
Core Family: ERApplication: SMPS and power convertersMaterials: PA66 p6g and special materials
02
ERL Coil Formers
Low-Profile Power Components
ERL geometries for reduced installation height and compact converter designs.
Core Family: ERLDesign Focus: Low profileMaterials: PA66 p6g and special materials
03
ERT Coil Formers
Advanced Power Conversion Components
ERT geometries for demanding converter and power supply applications.
Core Family: ERTDesign Focus: High efficiencyMaterials: PA66 p6g and special materials
Advantages
Product Advantages.
Optimized winding window utilization
Low leakage inductance potential
High power density
Suitable for automated winding processes
Available with different pin and blade configurations
Requirements
Technical Requirements.
High Power Density
Thermal Stability
Automated Manufacturing
Reliable Insulation
Compact Design
Engineering Features
Designed For Reliable Manufacturing.
Every product detail supports reliable winding, assembly, insulation and long-term production stability.
01
ER geometries support efficient use of available winding space
02
Suitable for modern high-frequency power conversion systems
03
Compatible with automated winding processes
04
Multiple pin and blade configurations available
05
Modular tooling concepts support fast customer adaptations
06
Suitable for high-volume industrial production
Materials
Engineered Materials.
Material selection supports electrical insulation, thermal stability and long-term reliability in demanding industrial applications.
PA66 p6g / RTI +125°CPET high-temperature gradesRadiation 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
High-temperature engineering thermoplastics
02
RTI values up to +125°C and above depending on material
03
Short-term soldering resistance up to +350°C
04
Pin and blade connection systems
05
Automated winding compatibility
06
Customer-specific modifications available
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.
Request application support→
Technical Resource
Quote Preparation
Move from technical interest to quotation preparation with product and project context already included.
Request Quote→
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 →Existing Resource Categories
ER Product InformationER Ferrite Core OverviewMaterial Selection GuideSolder Pin OverviewRadiation Cross-Linking
Technical FAQ
Frequently Asked Questions.
ER coil formers are winding bodies for ER ferrite core geometries used in switch-mode power supplies, converters and high-frequency transformer applications.
ERL variants focus on reduced installation height, while ERT variants are optimized for demanding high-efficiency applications. ER is the standard geometry family.
Industrial electronics, telecommunications, data center power systems, energy technology and advanced power conversion systems commonly use ER transformer designs.
Yes. Customer-specific geometries, pin systems and material configurations can be implemented depending on project requirements.
PA66 p6g, selected high-temperature thermoplastics and radiation cross-linked material systems depending on requirements.
Yes. ER coil formers are designed for efficient automated winding and industrial-scale production processes.
Industries
Related Industries.
NORWE supports applications across industries where quality, reliability and technical confidence matter.
Industrial ElectronicsTelecommunicationsEnergy SystemsData Centers
Inquiry Engine
Move From Product Interest To Engineering Clarity.
Start with ER. NORWE can support your team with technical documents, sample requirements, quotation preparation and application-specific engineering questions.
Discuss Your Application.
Talk to NORWE about ER components, technical requirements and application-specific solutions.