Shielded SMT Inductors
TT Electronics, BI Technologies Magnetic Components Division, recently developed a series of high current, low profile power inductors that are rated for operation to 180° C. Designated the HM70 series, these surface mount devices provide design engineers with a compact inductor appropriate for high-temperature applications where PC board space is at a premium. The maximum operating temperature range for the devices is 40° C to 180° C, with derating for temperatures above 130° C. The inductors are well suited for under the hood automotive and server/router applications that must operate in high temperature environments. The inductors feature typical inductance values from .70 to 2.10 µH (± 20%, measured at 100 kHz), with DC resistance values from 1.05 to 4.71mΩ. Rated current ranges from 12 to 34 ADC at 25° C. The HM70 series inductors are available in seven package sizes ranging from 9 × 10.5 to 13.5 mm × 12.9 mm, with a board-mounted profile that ranges from 3.7 × 5.50 mm.