ETD49 Switching Mode Power Supply High Power Vertical High Frequency Transformer
1.Product Description
The ETD49 magnetic core high-frequency high-power vertical direct insertion transformer is a core component designed specifically for efficient and high-power density switching power supplies. It adopts the classic ETD49 (E-type trapezoidal) ferrite core, which has excellent magnetic circuit efficiency and low leakage inductance characteristics, and is particularly suitable for high-frequency (usually tens of kHz to hundreds of kHz) working environments. The Vertical Straight Plug packaging design facilitates automated PCB board assembly and effectively saves circuit board space. This transformer can handle high power ranging from hundreds of watts to kilowatts, and is widely used in fields such as communication equipment, industrial power supplies, new energy conversion, and high-end server power supplies, achieving a perfect combination of high-efficiency energy transmission and compact size.
These are the five core characteristics of the ETD49 magnetic core high-frequency high-power vertical direct insertion transformer:
1. * * High efficiency and high-power transmission capability * *: Using ETD49 ferrite core, it has a large effective cross-sectional area (Ae) and volume, large magnetic flux capacity, excellent heat dissipation performance, and can stably carry high power ranging from hundreds of watts to kilowatts, meeting the needs of industrial grade high-power power supply.
2. * * Excellent high-frequency characteristics * *: Specially designed for high-frequency switching frequencies (usually tens of kHz to hundreds of kHz), using low loss high-frequency ferrite materials, can significantly reduce magnetic core loss (iron loss), reduce heat generation, and improve the conversion efficiency of the entire power system.
3. * * Low leakage inductance and high magnetic efficiency * *: The circular center pillar structure of the ETD (Economic Transformer Design) magnetic core allows the winding to be wound more tightly and evenly, effectively reducing leakage inductance. This not only improves energy transmission efficiency, but also reduces voltage stress on the switch tube, making the system operation more stable and reliable.
4. * * Vertical Straight Plug saves space * *: The vertical straight plug pin design allows it to be firmly installed upright on the PCB board, greatly saving board space and facilitating high power density and miniaturization design of power products, and is suitable for automated SMT surface mount production.
5. * * Good thermal management and stability * *: The magnetic core has a large size and a large heat dissipation area. When installed vertically, the heat generated by the coil can be directly conducted to the copper foil of the PCB for heat dissipation through the pins. At the same time, there is sufficient air flow space between the magnetic core and the coil, ensuring the thermal stability and long-term reliability of the transformer under high loads.
2.Performance Characteristics
| Feature Category | Performance Characteristic | Description / Benefit |
| Core & Material | Core Type & Material | ETD49 ferrite core (e.g., PC40, PC95 material). Offers excellent magnetic properties, high saturation flux density, and low losses at high frequencies. |
| Electrical Performance | High Power Handling | Designed for high-power applications, typically in the range of hundreds of Watts to over 1 kW, depending on the specific design and cooling. |
| High-Frequency Operation | Optimized for operation in high-frequency switching power supplies (e.g., 50 kHz to 500 kHz+), enabling smaller size and higher power density. |
| Low Core Losses | Ferrite material and core geometry minimize hysteresis and eddy current losses (iron losses), leading to higher efficiency and reduced heating. |
| Low Leakage Inductance | The ETD shape with a round center leg allows for tight, symmetrical winding, minimizing leakage inductance. This improves efficiency and reduces voltage spikes on switching components. |
| High Isolation Voltage | Can be designed and wound to achieve high primary-to-secondary isolation (e.g., 3-4 kV AC), meeting international safety standards. |
| Thermal Performance | Excellent Thermal Management | The large surface area of the ETD49 core and the vertical design promote effective heat dissipation through convection and radiation, ensuring stable operation under load. |
| Mechanical & Assembly | Vertical Straight Plug-in | Vertical mounting saves significant PCB real estate compared to horizontal types. The straight pins are suitable for automated PCB assembly (insertion and wave soldering). |
| Robust Mechanical Structure | The plastic bobbin provides secure winding containment and robust mechanical integrity, protecting the windings from physical damage and vibration. |
| Application | Design Flexibility | The bobbin allows for multiple winding configurations and the use of multiple strands of litz wire to minimize skin and proximity effect losses at high frequencies. |
| Wide Range of Applications | Ideal for use in high-power SMPS, inverters, telecom power systems, industrial equipment, renewable energy systems, and server/server PSUs.** |
3.Other Recommended Produtcs
4.Company Profile
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ETD49 Switching Mode Power Supply High Power Vertical High Frequency Transformer Images
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