Custom EF12.6 Ferrite Core High Frequency Transformers For LED Driver 5W SMPS
Price:
US$0.2-3
MOQ:
1000pcs
Delivery Time:
3~4 Weeks
Brand:
Chipsen
Product Description
Custom EF12.6 Ferrite Core High Frequency Transformer For LED Driver 5W SMPS
This EF12.6 high frequency transformer is a compact vertical-mount ferrite core transformer engineered for 5W switch mode power supply (SMPS) and LED driver applications. Built on an EF12.6 ferrite core with a high-temperature bobbin, fully polyester-tape encapsulated and vacuum varnish impregnated, it delivers stable coupling, low leakage inductance and reliable insulation in continuous operation. Winding turns, inductance, pin-out and output voltage are fully customizable to your schematic or sample -- OEM & ODM welcome.
Key Features
- Compact EF12.6 core - small footprint, ideal for space-limited LED driver and adapter PCBs.
- High frequency operation - ferrite core optimized for switching frequencies from 20 kHz to 150 kHz.
- Stable insulation - Class B (130°C) insulation system, margin-wound / triple-insulated wire options available.
- Low leakage inductance - tight sandwich winding structure for better EMI performance and efficiency.
- Full customization - turns ratio, inductance, pin configuration, lead length and core material made to order.
- 100% tested - inductance, turns ratio and Hi-Pot tested piece by piece before packing.
Technical Specifications
| Model Number | EF126 (EF12.6) |
|---|---|
| Product Type | High frequency switching / flyback transformer |
| Core Type / Material | EF12.6 ferrite core (PC40 / PC44 or equivalent) |
| Rated Power | 5W (3W-8W available on request) |
| Operating Frequency | 20 kHz - 150 kHz |
| Input / Output Voltage | Customized (AC 85-265V input, DC output per your design) |
| Primary Inductance | Customized, tolerance ±10% (tighter tolerance on request) |
| Mounting / Pin Type | Vertical PCB through-hole, pin count customizable |
| Insulation Class | Class B (130°C), Class F (155°C) optional |
| Winding Wire | Enameled copper wire; triple insulated wire (TIW) optional |
| Bobbin | Flame-retardant thermoplastic, UL94 V-0 grade |
| Encapsulation | Polyester tape wrapped + varnish impregnated |
| Operating Temperature | -40°C to +105°C |
| Place of Origin | China |
| Service | OEM / ODM, drawing & sample based customization |
* Electrical parameters are made to order. Please send us your schematic, specification sheet or sample for an exact quotation.
Typical Applications
- LED drivers & LED lighting power supplies
- 5W switch mode power supplies and AC/DC adapters
- Auxiliary / standby power in home appliances
- Smart home modules, IoT devices and set-top boxes
- Battery chargers and small industrial control power units
Customization Process
- Send us your drawing, specification or a physical sample.
- Our engineers review the magnetic design and confirm feasibility.
- Quotation and lead time confirmed.
- Sample production and electrical testing report provided.
- Sample approved -> mass production with 100% outgoing inspection.
Why Choose Us
- In-house magnetic design team - fast response on turns ratio, inductance and EMI optimization.
- Full test capability - LCR, turns ratio, Hi-Pot, temperature rise and waveform verification.
- Stable delivery - automatic winding machines and mature MTO capacity for continuous supply.
- Flexible order size - sample orders and trial batches accepted before mass production.
Packaging & Shipping
Anti-static tray or PE bag -> inner carton -> export standard carton, protected against moisture and impact. Shipping by express (DHL / FedEx / UPS), air freight or sea freight. Packing details can be adjusted to your requirement.
FAQ
Q1: Can you produce according to my own drawing?
Yes. Send us the drawing or specification sheet and we will build the transformer exactly to your design.
Q2: Can I get a sample before mass production?
Yes, samples are available for evaluation, together with an electrical test report.
Q3: Can the core size or power rating be changed?
Yes. Besides EF12.6, we also supply EE, EI, EP, ER, PQ and RM series cores for different power levels.
Q4: How do I get an accurate price?
Please provide input/output voltage, power, switching frequency, pin-out and annual quantity -- we will quote within 24 hours.
Need an EF12.6 transformer for your LED driver or 5W SMPS project? Send us your specification today and get a customized solution with a fast quotation.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Chipsen Electronics Technology Co., Ltd.
Location
No. 234, Changhuang Road, Changping Town, 523586, Dongguan, Guangdong, China
Contact Person
Nick Cheng