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The EFD15 Power over Ethernet (PoE) Transformer is designed for reliable power and data transmission in Ethernet communication systems. Utilizing a compact EFD15 ferrite core and precision winding technology, it delivers efficient power transfer, stable signal isolation, and excellent EMI performance for modern PoE applications.
Its low-profile structure is ideal for compact networking devices and high-density PCB layouts. The transformer is widely used in PoE switches, IP cameras, wireless access points, VoIP equipment, and industrial Ethernet systems requiring stable network communication and efficient power delivery.
Customized turns ratios, winding structures, and pin configurations are available to meet various PoE design requirements.
Designed for Power over Ethernet (PoE) systems
Compact EFD15 ferrite core with low-profile structure
Stable signal isolation and efficient power transmission
Excellent EMI suppression performance
High-frequency operation with low core loss
Reliable thermal and electrical stability
Suitable for compact communication devices
Flexible customization options available
PoE Switches and Injectors
IP Cameras and Surveillance Systems
Wireless Access Points (AP)
VoIP Communication Equipment
Industrial Ethernet Devices
Smart Building and IoT Systems
Network Communication Modules
The EFD15 ferrite core structure is optimized for high-frequency network communication and power delivery applications. Precision winding technology minimizes leakage inductance and signal loss while improving transmission efficiency and EMI suppression capability.
Its low-profile mechanical design supports compact device integration while maintaining reliable insulation and stable long-term electrical performance.
Physical Properties
| Order Code | VIN | Vout1 (V) | lout1 (A) | Vout2 (V) | lout2 (A) | Vout3 (V) | lout3 (A) | L (μH) | n | VT(V(AC)) |
| INF-EFD15-120μH | 36-57V(DC) | 1.8 | 2.4 | 1.8 | 2.4 | 1.8 | 2.4 | 120 | 14:1:1:1:5.5 | 1500 |
| INF-EFD15-120μH | 36-57V(DC) | 3.3 | 1.35 | 3.3 | 1.35 | 3.3 | 1.35 | 120 | 12:1:1:1:3 | 1500 |
| INF-EFD15-120μH | 36-57V(DC) | 5 | 0.9 | 5 | 0.9 | 5 | 0.9 | 120 | 7.2:1:1:1:1.8 | 1500 |
| INF-EFD15-120μH | 36-57V(DC) | 12 | 1.2 | 5 | 2.8 | 3.3 | 4.3 | 120 | 15:1.5:1:3:5 | 1500 |
Technical Specifications
| Main Category | Subcategory | Details |
| MOQ | Prototyping & Small-batch | 10 piece minimum order |
| Sample Service | Free proofing & custom service, 5 free samples (shipping at buyer’s cost) | |
| Bulk Order | 5,000 pieces and above with bulk pricing | |
| Lead Time | All Standard Components | Shipped within 5–7 working days |
| Custom Inductance / Pin Design (Sample) | Sample order confirmed within 5–7 working days | |
| Custom Inductance / Pin Design (Mass Order) | Shipped within 15–30 working days | |
| Payment Terms | Main Payment Term | T/T in advance, L/C at sight |
| Procurement Standard | Complies with global enterprise procurement standard for passive components | |
| Quality Deposit | No quality security deposit required | |
| Accepted Terms | FOB Shanghai / Nanjing / Hong Kong, T/T Advance | |
| Quality Assurance | Manufacturing Defects | Free replacement for issues caused by manufacturing defects |
| Inspection Report | Batch inspection reports available as certification upon customer request | |
| Packaging Specifications | Updated Packaging (2026) | Blister tray packaging; Sealed Tape & Reel for SMD products |
| Optional Packaging | Vacuum sealed packaging for customers with strict moisture-proof requirements |
