No. Smithfield, R.I. Picor, a subsidiary of Vicor Corp. has added three new devices to its QPI family of active EMI filters. The company says the new products QPI-3, QPI-5 and QPI-6 support all 24- and 48-volt (V) DC/DC converter applications including COTS, industrial, information technology and telecommunications with higher current ratings and lower costs.
The QPI-6 meets the specifications for the international 36 to 76 Vdc telecom bus, including the 100 V, 100 ms surge requirement. Rated at 14 A, the unit supports single or multiple DC/DC converters requiring up to 672 W of input power at 48 volts input. The QPI-3 and QPI-5 operate over a 10 to 40 Vdc range to support industrial bus and COTS applications. The QPI-3 and QPI-5 are rated at 7 and 14 A, respectively. The units support single or multiple DC/DC converters requiring up to 360 W of input power at 24 volts input.
Providing attenuation from 150 kHz to 30 MHz, the QPI products deliver over 40 dB of common-mode and more than 70 dB of differential-mode noise attenuation at 500 kHz. All products are pin and footprint compatible with previous versions in compact 1.0 x 1.0 x 0.2 inch (25.4 x 25.4 x 5.1 mm) surface-mount packages, offering board space savings of 50% to 80% over passive EMI filter solutions, said the company.
Picor said the QPI family requires only 20% to 30% of the volume and 30% to 50% of the area of similarly rated passive filters. The surface-mount LGA package is rated for operation over a case temperature range of -40°C to 100°C with an efficiency of 99%. Units may be placed in series for higher attenuation.
Packaged in anti-static tubes, prices for the QPI family start at $19.33 each. Evaluation boards are available. Delivery is from stock to six weeks.
Call (800) 735-6200