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Active EMI Input Module for 48 Vdc Bus
Quiet-Power®
QPI-21
S
C NRTL US
Product Description
The QPI-21 active EMI filter attenuates conducted commonmode (CM) and differential-mode (DM) noise over the CISPR22 frequency range of 150 kHz to 30 MHz. The product is designed for use in 48 Vdc bus (36 – 76 Vdc) systems, with 100 Vdc surge capability. The QPI-21’s 14 A rating supports multiple DC-DC converter loads up to an ambient temperature of 65°C without de-rating. Designed for the telecom and ITE bus range, the QPI-21 supports the PICMG® 3.0 specification for filtering system boards to the EN55022 Class B limits.
In comparison to passive solutions, the use of active filtering reduces component size and therefore reduces the overall package size.