Overview
- Customized transformer, we produce according to your requirements and design.
- EFD20 high-frequency transformer is a cutting-edge solution to optimize power conversion in modern electronic systems.
- With its advanced ferrite core technology and precision winding techniques, this transformer delivers exceptional efficiency, stability, and durability across a wide range of applications.
- Engineered with advanced materials and precision winding technology, this transformer delivers superior performance, reliability, and compactness, making it ideal for applications requiring high power density and low electromagnetic interference (EMI).
Features:
- High-permeability ferrite is used for low-core loss
- High-purity copper wire with multi-layer insulation is used for durability
- High-temperature resistance operates reliably in extreme environments
- Ultra-high efficiency: 92%+ energy transfer with minimal power loss
- EMI Shielding: Copper foil shielding layers are available to minimize electromagnetic interference.
- High Efficiency: Low core loss and optimized copper windings ensure minimal energy dissipation.
- Compact Design: EFD20 size (20mm x 20mm x 12mm) fits seamlessly into space-constrained devices.
- Wide Frequency Range: Operates efficiently at frequencies up to 500kHz, suitable for high-speed switching systems.
- Low EMI Radiation: Shielded construction reduces electromagnetic interference for stable operation.
- Durable Construction: Flame-retardant materials and reinforced terminals withstand harsh environments.
Materials :
- All materials have passed the UL certification
- Ferrite core: EFD20/ PC95; Phenolic bobbin: EFD20
- Copper wire: 2UEW /130℃
- Epoxy tape: Y25-A /130℃
- Teflon tube:/300℃; Copper foil: T0.5mm*30mm, T0.01mm*25mm
Technical Specifications:
- Power: 3VA~50VA
- Input voltage:1~260V(Customizable)
- Output voltage:3~500V(Customizable)
- Withstand voltage: 3000Vac/60sec
- Inductance: 1.00~50.00mH (±10%)
- Leakage Inductance: ≤5% of main inductance
- Isolation Resistance: ≥100MΩ at 500V DC
- Operating temperature: -40°C to +125°C
Certifications & Compliance
- CE, RoHS, CQC Certified
- ISO9001 quality management system
- Halogen-free and REACH-compliant
Application
- Switch Mode Power Supplies (SMPS)
- LED Lighting Drivers
- Solar Inverters
- Uninterruptible Power Supplies (UPS)
- Industrial Control Systems
Competitive Advantages
- Customization flexibility: Tailored solutions for voltage, power, and mounting requirements.
- Fast lead time: 1 week for samples, 4–6 weeks for bulk orders.
- Cost-effective: Affordable pricing without compromising performance.
- Long lifespan: 10+ years under normal operating conditions.
- OEM/ODM services: Private labeling, custom branding, and technical modifications.
- 24/7 technical assistance: Remote troubleshooting and design support.
- Global warranty: 3-year warranty
EFD Series
- EFD15, EFD20, EFD25, EFD30
- All of the above models can be customized.
Details
| Type | EFD20 |
|---|---|
| Input Voltage | 1~260V(Customizable) |
| Power | 3VA~50VA |
| Frequency | 10~500kHz |
| Packaging | Foam, Carton and Pallet |







