PF0553.222NL

Arrays, Signal Transformers Overview

The PF0553.222NL is a shielded two-coil surface-mount power inductor array manufactured by Pulse Electronics. It features a drum core construction with non-standard dimensions of 12.50mm length, 12.50mm width, and 8.71mm height. The component offers an inductance of 2 µH in parallel connection and 8.1 µH in series connection, with a tolerance of ±20%. It supports a rated current of 13 A in parallel and 6.2 A in series, with saturation currents of 25 A (parallel) and 13 A (series). Maximum DC resistance is 3.7 mΩ in parallel and 15 mΩ in series. Operating temperature ranges from -40°C to +125°C.

Arrays, Signal Transformers Feature Summary

• Dual-coil shielded array design for compact multi-phase applications
• Low DC resistance for high-efficiency power delivery
• High saturation and rated current capabilities
• Surface mount termination for automated assembly

Arrays, Signal Transformers Applications

• Multi-phase DC-DC converter input/output filtering
• Server and workstation power distribution modules
• Graphics card voltage regulation modules
• High-current point-of-load conversion stages

Arrays, Signal Transformers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status before integration, as manufacturing specifications may evolve. Confirm that the PCB footprint matches the non-standard package dimensions precisely. Ensure thermal management strategies account for the maximum operating temperature of 125°C and self-heating effects under full load conditions. Check for any end-of-life notifications or recommended alternative part numbers from the manufacturer.

Arrays, Signal Transformers Selection Notes

Select this component when space-constrained designs require dual-inductor functionality within a single footprint. The parallel configuration provides lower impedance and higher current handling suitable for multiphase interleaved converters. Consider the series configuration if higher inductance is needed for ripple reduction in single-phase applications. Evaluate the trade-off between the low DCR and the physical size constraints of the 12.5x12.5mm package.

Arrays, Signal Transformers Part Context

This part belongs to the PF0553NL series of SMT power inductors from Pulse Electronics. The series is designed for high-current applications requiring robust magnetic shielding to minimize electromagnetic interference. These components are typically used in demanding power electronics environments where reliability and thermal performance are critical. The PF0553.222NL specifically targets the 2µH value segment within this family.

Arrays, Signal Transformers Replacement Considerations

The DRQ127-2R2-R from Eaton is listed as a similar replacement option.