The EE28 30W SMPS High Frequency PCB Mount Transformer is a compact and efficient transformer designed for low-to-medium power switch-mode power supply (SMPS) applications. Built with a PC40 ferrite core and high-grade copper windings, it delivers stable 11V output and supports high-frequency operation. This transformer is well-suited for power supply designs based on the DP2281 controller IC and is ideal for compact adapters, chargers, and embedded power systems.

Features:

1. High-frequency SMPS transformer designed for 30W power applications.
2. Compact EE28 core size suitable for PCB-mounted power supplies.
3. Includes auxiliary winding for bias supply and control circuitry.
4. Supports wide operating frequency range from 20kHz to 500kHz.
5. Optimized for use with DP2281 IC-based SMPS designs.
6. Through-hole mounting with 8-pin configuration for secure PCB installation.
7. High-grade copper windings ensure efficient current handling and thermal stability.
8. Suitable for compact power supplies, chargers, and DIY SMPS projects.

Specifications:

• Model Number: EE28
• Core Shape: PC40
• Phase: Single
• Power Rating: 30 Watts
• Output Voltage: 11V
• Maximum Secondary Current: 3.5A
• Primary Winding: ~660mH, 64 Turns, 0.3mm Copper Wire
• Primary Bias Winding: 11 Turns, 2 × 0.2mm Copper Wire
• Secondary Winding: 7 Turns, 3 × 0.3mm Copper Wire
• Secondary Bias Winding: 11 Turns, 2 × 0.2mm Copper Wire
• Working Frequency: 20kHz – 500kHz
• Winding Material: High-Grade Copper
• Number of Pins: 8 Pin
• Mounting Style: Through Hole
• Operating Temperature Range: -15°C to +105°C
• Dimensions (L × B × H): 26mm × 22mm × 19mm
• Weight: 28g

Package Includes:

1 × EE28 30W SMPS High Frequency PCB Mount Transformer with Auxiliary Winding - 11V Output (DP2281 IC)