TCoils and
NFMI antennas

Sonion is an expert in winding miniature telecoils and NFMI antennas. Both are optimized for the highest sensitivity and are very reliable. Telecoils have a mu-metal core, while NFMI antennas are wound around a ferrite core.

Family Features
NFMI antennas• Near Field Magnetic Induction
• Ideal for wireless earphones and hearing instruments
• High Q-factor
• Customizations possible on request

Passive telecoils• Flanged telecoils
• Variety of sensitivities and inductances
• Coating options for maximum coil protection
• Wide variety of dimensions possible
Active telecoils• Telecoil with amplifier
• Complies with Nordic Standard requirements
• Coating options for maximum coil protection
• Wide variety of sizes possible

Application Notes