QPI-3 7 Amp Active EMI Filter for 24 V DC Bus
QPI-4 7 Amp Active EMI Filter for 48 V DC Bus
QPI-5 14 Amp Active EMI Filter for 24 V DC Bus
QPI-6 14 Amp Active EMI Filter for 48 V DC Bus
QPI-7 6 Amp Active EMI Filter, with intergrated Hot-Swap, for 24 V DC Bus
QPI-8 6 Amp Active EMI Filter, with intergrated Hot-Swap, for 48 V DC Bus

QPI-9 6 Amp EMI Filter, with intergrated Hot-Swap for 24 V V•I Chip
QPI-10 6 Amp EMI Filter, with intergrated Hot-Swap for 48 V V•I Chip
QPI-11 7 Amp V•I Chip EMI Filter for 24 V V•I Chip products
QPI-12 7 Amp V•I Chip EMI Filter for 48 V V•I Chip products

QPO-1 Output Ripple Attenuation (SiP)
QPO-2 Low Voltage Output Ripple Attenuator