IR Intros New IRF6665 DirectFET MOSFET

International Rectifier Corp. (IR, El Segundo, CA) introduced its new IRF6665 DirectFET™ MOSFET for medium-power, Class D audio amplifiers. The device parameters are tuned specifically for improved audio performance such as efficiency, total harmonic distortion and power density. Applications for Class D amplifiers range from battery-powered portable products to high-end professional amplifiers, musical instruments, and car and home multi-media systems.

In addition to application-tuned silicon, IR's DirectFET packaging technology enhances performance in Class D audio amplifier circuits by reducing lead inductance, which improves switching performance and reduces EMI noise. Thermal efficiency enables 100 W operation into 8 Ω without a heatsink. Eliminating heatsinks shrinks circuit size and bulk, giving designers more layout flexibility and reduces amplifier cost.

The new IRF6665 Class D audio DirectFET™ MOSFET is now available. Pricing is $0.52 each in 10,000-unit quantities.