General Purpose Transformers

DEFON General Purpose EI Transformers

– Reliable Power Conversion for Industrial & Commercial Applications

Product Overview

Defon Electronics manufactures high-quality general purpose EI transformers ranging from 5VA to 1200VA, designed for a wide variety of electrical and electronic applications.

These transformers are built using laminated silicon steel EI cores, providing stable voltage conversion, low energy loss, and long service life. They are widely used in industrial equipment, control systems, lighting products, consumer electronics, and commercial electrical systems.

As a professional OEM/ODM manufacturer, we offer full customization including voltage, power rating, insulation class, mounting type, and safety compliance requirements.

Whether for prototyping or mass production, our general purpose transformers ensure reliable performance and cost-effective solutions.

Key Features

Power range: 5VA to 1200VA
EI laminated core design for stability and efficiency
Custom input/output voltage available
Low no-load loss and high efficiency
Strong insulation performance for safety
Flexible mounting options (PCB, chassis, open frame, enclosed)
Copper winding with high thermal resistance
Suitable for continuous operation
OEM / ODM customization supported
RoHS compliant materials available

Applications

General purpose EI transformers are widely used in:

Industrial Equipment

Automation control systems
Machine tools
PLC control panels
Power distribution systems

Lighting Systems

LED lighting drivers
Landscape lighting
Architectural lighting
Commercial lighting systems

Consumer Electronics

Audio equipment
Home appliances
Chargers and adapters
Smart devices and accessories

Commercial Systems

Security systems
Access control systems
HVAC control units
Communication equipment

Electrical Infrastructure

Signal systems
Low voltage power supply systems
Instrumentation equipment
Testing and measurement devices

Electrical Performance

Stable voltage output under load variations
Low temperature rise design
High dielectric strength for safety
Low magnetic noise operation (optional design)
Long operational lifespan for industrial use

Customization Options

We support full OEM/ODM customization:

Input voltage (110V / 220V / 230V / 277V / etc.)
Output voltage (single or multiple outputs)
Power rating (5VA–1200VA)
Frequency (50Hz / 60Hz)
Insulation class (B / F / H)
Lead wire, terminal or PCB pin configuration
Open frame or enclosed structure design
Safety certification requirements (UL / CE / ETL options)

Why Defon Electronics

Defon Electronics is a professional manufacturer of EI transformers and custom power solutions. We focus on engineering precision, stable quality, and flexible OEM support.