The Hammond 197B20 high-frequency reactor is engineered for robust performance in a variety of applications. Its high permeability core is optimized for frequencies below 50KHz, while the rugged construction, featuring an aluminum base and stainless steel band, ensures durability. The open-style terminal provides versatility in circuit design. With a self-resonant frequency of 333.0 Khz and a low DCR, this reactor is suitable for power supplies, lighting ballasts, and other demanding applications. The reactor's performance is consistent across a wide temperature range of -40°C to 105°C.