EFD Series SMPS Transformer

Product Details:

EFD-30 SMPS Transformer is a high-efficiency, low-profile ferrite transformer designed for Switch Mode Power Supply (SMPS) applications that demand compact size, excellent thermal stability, and reliable performance. Constructed using EFD-30 ferrite cores, it ensures low core losses, high magnetic efficiency, and stable operation at high frequencies.

Its flat and thin structure makes it ideal for slim electronic devices and power supplies where space is limited. The transformer is engineered to deliver superior isolation, reduced electromagnetic interference (EMI), and optimized energy conversion for both AC-DC and DC-DC converter designs.

• Compact, low-profile EFD-30 ferrite core construction

• High energy efficiency with minimal leakage inductance

• Optimized for high-frequency operation (up to 500kHz)

• Excellent heat dissipation and insulation resistance

• Available in horizontal and vertical mounting types

• Customizable for Flyback, Forward, or Half-Bridge topologies

• Manufactured using UL94V-0 compliant materials

• Meets international safety and insulation standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Drivers and Lighting Equipment

• Battery Chargers and Power Adapters

• Communication and Industrial Control Systems

• Consumer and Medical Electronics

• Solar and Renewable Power Devices

Additional Information:

• Item Code: EFD-30

Product Details:

EFD-20 10-PIN SMPS Transformer is a compact, high-efficiency ferrite core transformer specifically designed for Switch Mode Power Supplies (SMPS) and DC-DC converter applications. Built with an EFD-20 ferrite core and a 10-pin horizontal package, this transformer offers excellent thermal stability, low leakage inductance, and superior energy conversion efficiency in a low-profile design ideal for space-constrained PCBs.

Engineered for reliable power conversion and isolation, the EFD-20 transformer ensures stable output performance and minimal EMI, making it suitable for a wide range of consumer electronics, communication equipment, industrial controls, and LED power drivers.

• Compact and low-profile design for high-density PCB mounting

• High-frequency operation (up to 200 kHz) with low core loss

• Excellent coupling efficiency and minimal stray capacitance

• Superior dielectric strength and insulation resistance

• Low temperature rise and high reliability for continuous operation

• RoHS compliant and UL94V-0 rated materials

• Customizable winding and pin configuration as per design requirements

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Drivers and Power Modules

• Battery Chargers

• Power Adapters and Mobile Chargers

• Industrial and Communication Equipment

• Low-Voltage Power Conversion Circuits

Additional Information:

• Item Code: EFD-20-10-PIN

Product Details:

EFD-25 SMPS Transformer is a high-efficiency, low-profile ferrite transformer designed for Switch Mode Power Supply (SMPS) applications requiring compact size and excellent power conversion performance. Built with EFD-25 ferrite cores, it provides superior magnetic characteristics, low core losses, and stable performance at high operating frequencies.

Its slim and flat core structure makes it ideal for thin and compact electronic devices, ensuring efficient energy transfer and low electromagnetic interference (EMI). The transformer can be customized for Flyback, Forward, or Push-Pull topologies depending on circuit requirements.

• Compact, low-profile EFD-25 ferrite core design

• High efficiency with low leakage inductance

• Optimized for high-frequency operation (up to 200–500kHz)

• Excellent thermal performance and insulation resistance

• Available in horizontal or vertical mounting

• Custom winding configurations for desired voltage/current ratings

• Compliant with international insulation and safety standards (UL94V-0 materials)

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Drivers and Lighting Systems

• Battery Chargers and Adapters

• Industrial Control Equipment

• Communication and Medical Devices

• Consumer Electronics

Additional Information:

• Item Code: EFD-25

Product Details:

EFD-20 SMPS Transformer is a compact and efficient ferrite core transformer designed for Switch Mode Power Supply (SMPS) applications that require high performance in limited space. Built with a low-profile EFD-20 ferrite core, it offers excellent magnetic properties, low core losses, and superior thermal performance at high operating frequencies.

Its slim and flat design makes it ideal for thin electronic devices and portable power systems. This transformer is suitable for Flyback, Forward, and Push-Pull topologies, ensuring high efficiency, minimal electromagnetic interference (EMI), and long-term reliability.

• Compact and low-profile EFD-20 ferrite core structure

• High efficiency with low leakage inductance

• Optimized for high-frequency operation (up to 300–500kHz)

• Excellent heat dissipation and insulation properties

• Available in horizontal or vertical mounting configurations

• Custom windings available for specific voltage and current ratings

• Built using UL94V-0 compliant materials

• Meets international safety and insulation standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Lighting Drivers

• Battery Chargers and Power Adapters

• Consumer and Industrial Electronics

• Communication Equipment

• Instrumentation and Medical Devices

Additional Information:

• Item Code: EFD-20

Product Details:

EFD-15 SMPS Transformer is a compact and efficient transformer designed for switch mode power supply (SMPS) applications requiring low-profile and high-performance power conversion. Built using EFD-15 ferrite cores, it provides excellent energy transfer efficiency and reduced core losses at high frequencies. Its flat, slim structure makes it ideal for space-constrained circuit designs and surface-mount (SMD or THT) configurations.

• Compact and low-profile EFD-15 ferrite core structure

• High efficiency and low leakage inductance

• Designed for high-frequency operation (up to 200kHz or more)

• Excellent thermal stability and insulation resistance

• Available in both horizontal and vertical mounting configurations

• Custom winding options for various voltage and current ratings

• Complies with international safety and insulation standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Drivers

• Battery Chargers

• Industrial and Consumer Electronics

• Communication Equipment

• Medical and Instrumentation Devices

Additional Information:

• Item Code: EFD-15

Product Details:

SMPS Ferrite Transformer is specifically designed for Switch Mode Power Supply (SMPS) applications, offering superior efficiency, compact design, and excellent electrical performance. Utilizing high-quality ferrite cores such as EE, EI, ETD, EFD, PQ, or RM types, this transformer ensures minimal core loss, high energy transfer, and stable operation at high frequencies.

It is widely used in various low to high power conversion circuits, ensuring reliable isolation and efficient voltage transformation. Custom winding and core size options are available to meet specific design requirements for both AC-DC and DC-DC converter applications.

• High efficiency with low core and copper losses

• Operates effectively at high switching frequencies (up to 500kHz)

• Compact and lightweight ferrite core design

• Excellent thermal stability and insulation resistance

• Supports multiple topologies (Flyback, Forward, Push-Pull, Half-Bridge, Full-Bridge)

• Customizable voltage, current, and winding configurations

• Complies with international safety and insulation standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters

• LED Drivers

• Battery Chargers

• Inverters and Power Adapters

• Industrial Control Systems

• Communication and Consumer Electronics