EPC13 High-frequency Transformer With High Efficiency And Low Loss, Used For AC-DC Adapters/chargers
1.Product Description
EPC13 High-Frequency Transformer** is a compact and high-performance magnetic component designed for modern switching power supplies. It features excellent efficiency and minimal core/copper losses due to optimized winding techniques and high-grade core materials (such as PC40/PC44). With its small footprint and stable electrical characteristics, it is ideal for space-sensitive applications including **AC-DC adapters, USB chargers, LED drivers, and low-power auxiliary power modules**. The transformer supports wide-frequency operation, ensures low EMI noise, and can be customized for turns ratio, inductance, and safety isolation requirements. Reliable and cost-effective, it serves as a key solution for energy-efficient and compact power design.
1. Energy transmission and voltage conversion
Core function: As an "energy bridge", it efficiently transfers input electrical energy to the output end through magnetic coupling.
Implementation method: By changing the turns ratio of the primary and secondary windings, precise voltage boosting or lowering can be achieved to meet the voltage level required by the subsequent circuit.
2. Electrical isolation
Core function: Provide a safe "electrical isolation barrier".
Implementation method: By magnetic coupling instead of direct electrical connection, the input (primary side) and output (secondary side) circuits are completely isolated electrically. This can:
Ensure personal safety: prevent dangerous voltage from the high-voltage side from entering the accessible parts of the low-voltage side.
Protect sensitive circuits: block noise and interference, improve system anti-interference ability and stability.
2.Performance Characteristics
| Feature Category | Key Features & Performance |
| Electrical Performance | • High Efficiency & Low Loss: Utilizes premium ferrite cores (e.g., PC40/PC44) and optimized winding design to minimize core and copper losses. |
| • High Power Density: Compact EPC13 footprint delivers excellent power transfer capability, saving valuable PCB space. |
| • Excellent Consistency: Automated manufacturing ensures tight tolerances on key parameters like inductance and turns ratio. |
| • Low EMI Profile: Designed winding structure helps suppress high-frequency noise, easing system-level EMI compliance. |
| Reliability & Construction | • High-Quality Core Materials: Standard or high-grade ferrite materials ensure stable performance across operating temperatures. |
| • Robust Insulation System: Features Class B (130°C) or higher insulation materials, with options for triple-insulated wire and reinforced isolation. |
| • Automated Precision Winding: Fully automated production guarantees consistent, reliable, and repeatable construction. |
| • Mechanical Stability: Potting or vacuum varnish impregnation options available for enhanced moisture resistance and mechanical rigidity. |
| Customization & Flexibility | • Electrical Parameters: Customizable primary inductance, turns ratio, leakage inductance, and winding configuration. |
| • Mounting Styles: Available in vertical, horizontal, and SMD (surface-mount) pinout configurations. |
| • Safety & Standards: Can be designed and certified to meet international safety standards (UL, VDE, IEC) upon request. |
| • Special Requests: Support for custom labeling, tape color, and specific packaging requirements. |
| Typical Applications | • AC-DC Adapters & USB Chargers |
| • LED Lighting Drivers |
| • Auxiliary Power for Home Appliances & Industrial Controls |
| • Isolated DC-DC Converters in Networking/Telecom Equipment |
| • Low-Power Switch-Mode Power Supplies (SMPS) |
3.Other Recommended Products
4.Company Profile
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EPC13 High-frequency Transformer with High Efficiency Low Loss and Compact Design for AC-DC Adapters Images
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