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Custom EF12.6 Ferrite Core High Frequency Transformers For LED Driver 5W SMPS

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Custom EF12.6 Ferrite Core High Frequency Transformers For LED Driver 5W SMPS

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Certification : ISO9001:2015, ISO14001:2015, IATF16949, UL/cUL, ROHS, REACH, CQC

Operating Frequency : 20kHz - 150kHz

Model Number : EF126 (EF12.6)

MOQ : 1000pcs

Delivery Time : 3~4 Weeks

Winding Wire : Enameled Copper Wire / TIW Optional

Insulation Class : Class B 130 Degree

Payment Terms : T/T

Mounting Type : Vertical PCB Through Hole

Price : US$0.2-3

Bobbin Material : UL94 V-0 Flame Retardant

Supply Ability : 10,000,000pcs/month

Rated Power : 5W (Customisable)

Place of Origin : China

Core Material : Ferrite PC40 / PC44

Brand Name : Chipsen

Product Type : EF series High Frequency Switching Transformer

Packaging Details : Carton 1: 25.5 X 21.5 X 21cm. Carton 2: 43.5 x 24.5 x 21 cm

Application : LED Driver, SMPS, AC DC Adapter

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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
  1. Send us your drawing, specification or a physical sample.
  2. Our engineers review the magnetic design and confirm feasibility.
  3. Quotation and lead time confirmed.
  4. Sample production and electrical testing report provided.
  5. 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.
Custom EF12.6 Ferrite Core High Frequency Transformers For LED Driver 5W SMPS Custom EF12.6 Ferrite Core High Frequency Transformers For LED Driver 5W SMPS

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High Frequency Transformers

      

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