Custom coil solutions
Custom Transmitter Coils
Transmitter coils, also known as electromagnetic coils, operate through the principle of induction. We support custom coil projects from design and development through testing and production.
Applications: RFID • ID / IC Cards • Automotive Electronics • Wireless Charging

Coil Samples and Custom Options
Examples of coil assemblies and winding forms shown in the existing product gallery.


Custom Transmitter Coil Specifications
Use the listed ranges as a starting point. Product specifications can be prepared according to your drawing or requirements.
| Specification | Details |
|---|---|
| Wire Shape | Round; rectangular with rounded edges; flat; ribbon |
| Insulation Material | Low temperature (155°C) or high temperature (220°C) |
| Max. Adhesive Temperature Rating | > 220°C |
| Wire Size (AWG) | #16 to #48 AWG |
| Coil Winding Inner Diameter (ID) Range | 0.062” to 10.0”; other sizes available with custom tooling |
| Material | Enameled wire; copper diameter: 0.02–0.8 mm (listed as passed RHOS on the source page) |
| Price | 0.3–1.0 USD (EXW, FOB, CIF, etc. accepted; source page describes this as a high quality, competitive price) |
| Product Specification | According to customer request or drawing |
| Testing Capabilities | Resistance, turns count, inductance |
| Coil Winding Equipment | Manual and CNC coil winding machines; soldering irons/posts and equipment; automated stripping and tinning |
| Packing | Foam box, plastic box, carton |
| MOQ | Source page states service is available for both large and small orders; please contact us to confirm the project quantity. |
| Secondary Services | Assembly; blanket orders |
| Typical Lead Time | 2 weeks typical |
| Place of Origin | Dongguan, Guangdong, China |
| Certification | ISO9001:2008 with ROHS (as listed on the source page) |
Have a Transmitter Coil Project?
Share your drawing and application details with the JHCOILS team.