Custom SMPS Transformers – High Frequency Switching Power Supply Ferrite Core Transformers

SMPS transformers, also known as switching power supply transformers, are essential high-frequency magnetic components for modern power conversion systems. Unlike low-frequency mains transformers, these ferrite-core transformers work at high switching frequencies to achieve compact size, high efficiency and low heat loss.

Our factory supplies a full range of custom SMPS transformers covering multiple core series: EE, ETD, PQ, EFD and more. These transformers support multiple circuit topologies including flyback, half-bridge, full-bridge and resonant circuits, widely adopted in power adapters, battery chargers, UPS, inverters and industrial power equipment.

We provide one-stop customized service for SMPS transformers. According to your technical specifications, we can adjust core type, turns ratio, operating frequency, output power, pin layout and winding structure. Different grades of magnet wire and insulation materials are optional to meet safety standards and long-term stable operation requirements.

Common Series of SMPS Transformers

• EE Series SMPS Transformers: Widely used for flyback topology, low-to-medium power power supply projects
• ETD Series SMPS Transformers: Suitable for half-bridge, full-bridge and high-power resonant power supplies
• PQ Series SMPS Transformers: Compact structure, excellent thermal performance for medium power switching supplies
• EFD Series SMPS Transformers: Low profile design for thin adapter and consumer electronics

Key Features of Our Custom SMPS Transformers

✅ Custom winding, pin configuration and bobbin selection ✅ Stable performance under continuous high-frequency operation ✅ Multiple insulation classes available ✅ Strict winding and insulation testing before delivery ✅ Support customer drawings and sample customization

Typical Applications

Switching power adapters, industrial power supplies, UPS systems, solar inverters, battery chargers, POE power equipment, consumer electronics power modules.

If you are looking for a reliable SMPS transformer manufacturer for your power supply projects, check our full product range of SMPS transformers and send your specifications for quotation.

If you are evaluating magnetics for switch‑mode power supplies, read our guide What Is Custom Flyback Transformer & Its Applications in SMPS, explaining flyback transformer working principles and real‑world SMPS application cases