New Surface Mount Chokes Come In Pick-And-Placeable Housing

A series of surface-mount toroidal-core transformers now includes a new size, 8.5 mm x 6 mm x 4.5 mm. The parts are supplied on carrier-and-reel and are suited for reflow and vapor phase soldering. The current compensated chokes have inductance values from 11 to 4,700 µH, but RF or pulse transformer models can be provided. Operating from -40°C to 125°C, the chokes function well in EMI isolation in switching mode power supplies and other line filtering requirements. Pricing is $1.43 each/5,000 for inductance values up to 470 µH; higher inductance value models start at $1.53 each.