Picor Intros QPI-4 Active EMI Filter for Telecom
Picor Corp. (Andover, MA), a power IC subsidiary of Vicor Corp. (Andover, MA), introduced the QPI-4 active EMI filter for 48 V dc-dc converter applications. Providing attenuation from 150 kHz to 30 MHz, the QPI-4 delivers over 40 dB of common-mode and more than 70 dB of differential-mode noise attenuation at 500 kHz. The QPI-4 supports all dc-dc converters in IT, telecom, and other 48 Vdc applications requiring filtering in small spaces.
The QPI-4 is the latest member of Picor’s active EMI filter family for the telecom bus market, and its compact 1 in x 1 in x 0.2 in (25.4 mm x 25.4 mm x 5.1 mm) surface-mount package offers board space savings of 50% to 80%. The QPI-4 meets the specifications for the international 36 Vdc to 76 Vdc telecom bus, including the 100 V, 100 ms surge requirement. Rated at 7 A, the unit supports single or multiple dc-dc converters requiring up to 336 W of input power at 48 V input.
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%. The QPI-4 is priced at $12.53 per 1,000-piece quantities. Delivery is in stock to six weeks.
