Coilcraft 2208NF Series

The 2208NF Series from Coilcraft are NFMI (Near Field Magnetic Induction) Antenna Coils that can be used for syncing earbuds/headphones, hearing aids, and other IoT wearable devices in audio data streaming applications. They are optimized for operation at 10.579 MHz and have inductance values of 3.7 / 3.9 μH with a DC resistance of under 740 mOhms. These coils are available in small surface-mount packages that measure 5.95 × 2.48 × 2.2 mm.

NFMI Antenna Coils

• Designed for Near Field Magnetic Induction (NFMI) for syncing earbuds/headphones, hearing aids, and other IoT wearable devices in audio data streaming applications.
• Optimized for use at 10.579 MHz
• Small surface mount package, only 5.95 × 2.48 × 2.2 mm (L × W × H)

Core material Ferrite

Environmental RoHS compliant without exemption, halogen free

Terminations RoHS compliant matte tin over nickel over silverplatinum-glass frit.

Weight 0.1 g

Ambient temperature –40°C to +85°C with Irms current

Maximum part temperature +100°C (Ambient + temperature rise)

Storage temperature Component: –40°C to +100°C.

Tape and reel packaging: –40°C to +80°C

Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Temperature Coefficient of Inductance (TCL) +25 to +150 ppm/°C

Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity)

Failures in Time (FIT) / Mean Time Between Failures (MTBF) 0.22 per billion hours / 4.545E+09 hours, calculated per Telcordia SR-332

PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash.

Download Datasheet

Courtesy of Coilcraft