Ferrite inductor WL11G50

magneticwire-woundpower

Overview
A custom wireless charging coil designed for wireless power transfer in electronic devices. Configurable in size, inductance, operating frequency, rated power, resistance, winding structure and shielding. Suitable for transmitter and receiver use; OEM development includes requirement analysis, engineering design, prototyping, electrical testing and production optimization.

How it works

• Step 1 – Electrical energy input: the charging circuit supplies an alternating current to the transmitter coil.
• Step 2 – Generating the magnetic field: the transmitter coil converts electrical energy into a varying magnetic field.
• Step 3 – Magnetic coupling: the magnetic field crosses the air gap between transmitter and receiver coils.
• Step 4 – Energy received: the receiver coil converts the changing magnetic field back into electrical energy.
• Step 5 – Power conditioning: rectifier and charging circuit regulate the received power for the battery or electronic load.

Key factors that affect performance

• Coil position and alignment
• Operating frequency
• Self-inductance
• Coil resistance (DCR)
• Distance (air gap) between coils
• Ferrite shielding and magnetic materials
• Charging power and current
• Nearby metallic parts
• Operating temperature

Main features
Customized geometric and electrical parameters to meet space and performance constraints. Winding options include copper wire, Litz wire or FPC. Ferrite shielding improves coupling and reduces EMI. Designs can be optimized for inductance, DCR, operating frequency and thermal behavior. OEM support enables in-system testing and mass production readiness.

Datasheet (extracted table)
Brand: Weilong Technology
Model Number: WL11G50
Product Size: 50*1.0 * 10 TS *6,5 UH
Rated Power (W): 5, 10, or 15 W
Wire: 0.08 mm * 105 turns
Holding Force (N): Nil
DCR: 26.5 UH +/- 10%
Service Life: 300 Thousand Times
Certification: CE, RoHS, ISO9001
Material: copper wire
Power Contact: lead wire
Install Style: adhered tape
Tolerance of Dimension: ± 0.1 MM
Water-proof: None
Insulation Class: F
Hi-Pot Test: AC 600V 50/60Hz 2s
Non-excitation Holding Force: 0
Working Temperature: -10°C-100°C
Duty Cycle: 1-100%
Thread Depth (mm): 0.1 mm
Payment Term: TT, or LC at Sight
Sample Order: Yes.
Warranty: 1 Year
MOQ: 1000 pcs
Supply Ability: 5000 pcs per week
Delivery Time: 30 Days
Port of Loading: Shenzhen

Application summary
Designed for smartphones, smartwatches, IoT devices, medical electronics, automotive modules, industrial sensors, charging pads and embedded wireless-power systems where compact size, thermal behavior and alignment tolerance are critical.

Troubleshooting highlights

• Inefficient charging: verify coil alignment, operating frequency, inductance, DCR, air gap and nearby metal.
• Sporadic charging: check alignment, charging IC, power supply and connectors.
• Excessive temperature: review DCR, current, ventilation and winding structure.
• Limited charge range: inspect magnetic coupling, air gap and ferrite arrangement.
• Mismatch with circuit: test inductance, resistance, frequency and Q factor.
• EMI concerns: evaluate ferrite shielding and proximity to other components.

Technical specifications

• Brand: Weilong Technology
• Model: WL11G50
• Product size: 50*1.0 * 10 TS *6,5 UH
• Rated power: 5 W, 10 W or 15 W
• Wire: 0.08 mm × 105 turns
• DCR / Inductance spec: 26.5 UH ±10%
• Material: copper wire
• Install style: adhered tape
• Tolerance of dimension: ±0.1 mm
• Working temperature: -10°C to 100°C
• Insulation class: F
• Hi-pot: AC 600V 50/60Hz 2s
• Service life: 300,000 cycles
• MOQ: 1000 pcs; Supply ability: 5000 pcs/week; Delivery time: 30 days
• Warranty: 1 year