Pulse Offers PG0322NL Series Power Cube Inductors

Pulse Engineering Inc. (San Diego, CA), a manufacturer of passive electronic magnetic-based components, announces a new line in its family of through-hole, shielded, shaped-core power inductors. Designed for personal computer motherboard and server markets, the PG0322NL Series is suitable for use in voltage regulator modules (VRMs), dc-dc converters, and point-of-load applications.

The PG0322NL inductors have a high heating current rating of 32 A to 60 A, and a high current saturation capability from 30 A to 50 A, suitable for high-current, multi-phase buck converter applications. The series has an operating temperature range of -40 °C to +130 °C, providing power supply design engineers enough margin for thermal de-rating, especially for high ambient temperature applications. The PG0322NL Series offers a wide open circuit inductance (OCL), ranging from 0.28 µH to 1.20 µH, which gives engineers a free hand in choosing the inductance value for the smallest ripple current and fastest system transient response. The low direct current resistance (DCR) ranging from 0.60 m? to 1.65 m? yields high system efficiency due to lower copper losses. Both the OCL and DCR have tight tolerances of ±15 percent and ±8 percent, respectively, allowing for accurate current sensing in systems using the inductor as the current sense element.

The PG0322NL Series is designed with a ferrite core material rather than the iron powder material typically used in existing motherboard inductor solutions. The ferrite core material has 60 percent less core loss, resulting in low power use and less heat generation. The ferrite core also eliminates the risk of thermal aging core failures. The PG0322NL Series package height of 9.5 mm is optimal to fit underneath the processor heatsink. The 14.5 mm x 14.5 mm footprint minimizes board space. The inductors are RoHS-compliant and meet the EIA481 standard.

Parts in the PG0322NL Series are available in trays with prices averaging $0.18 per unit for a quantity of 100,000 units. Individual part pricing may vary due to volume, configuration, and shipping destination. Parts are available for immediate delivery.