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Add : Room 701, Building A1, No. 55 Runfa Road, Jiangning District, Nanjing, China
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ER35 (7+7) High Frequency Transformer is a high-performance magnetic component engineered for medium-power SMPS and high-frequency power conversion systems. With a 7+7 dual-winding structure, it ensures balanced energy distribution, enhanced electrical isolation, and stable output characteristics in demanding operating environments.
Based on the ER35 ferrite core platform, the transformer delivers excellent magnetic coupling, reduced hysteresis and eddy current losses, and efficient power transfer across a wide frequency range (typically 20kHz–500kHz).
Its optimized design supports high power density and compact integration, making it suitable for modern electronic devices requiring both performance and space efficiency. The transformer also maintains reliable thermal stability and consistent operation under continuous load conditions.
Bobbin types adopt traditional styles , transformer design parameters are subject to customer requirements or injection specifications, supporting global ODM/OEM cooperation.
ER35 ferrite core structure
7+7 pin configuration
Designed for medium-power SMPS systems
Stable high-frequency performance
Reliable isolation capability
Improved thermal management
High energy transfer efficiency
Flexible customization support
Switching Power Supplies
DC-DC Converter Systems
Industrial Electronics
LED Driver Power Supplies
Communication Equipment
Smart Control Systems
Embedded Power Modules
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 |
