JW Miller Magnetics (Gardena, CA) expanded its PM7232S, PM12639S and PM12645S high-current SMT Power Inductor Series to include eight additional families of sizes and values for increased current flexibility and versatility. The expanded series includes the PM7232S, PM1038S, PM12639S, PM12645S, PM12651S, PM13560S, PM13656S and PM13666S in 7mm, 10mm, 12mm and 13mm footprints.
Designed with a flat wire to create more space for high-current capabilities, the devices offer an inductance range of 0.10µH to 10µH. The inductors can handle current as high as 80A and offer a dc resistance as low as 0.54 milliOhms. Other features include an operating frequency up to 3MHz, a wide operating temperature range of –40°C to +150°C, and high saturation current to withstand high-temperature application environments. All models in the series are suitable for IR reflow soldering and incorporate magnetic shielding, which reduces radiation emission to minimal levels and protects circuit functionality — even when operated at high-frequency, high-ripple current condition.
The new devices are suitable for high-density mounting in such applications as dc-dc converters in high-speed notebook/desktop computers, video game machines, automotive, aerospace, telecommunications, RF/wireless, and low-profile/high-current power supplies. Specific uses include energy storage, dc output chokes, flyback inductors, light dimmers, differential-mode chokes and EMI filters. The new inductors are packaged on tape-and-reel in 500-piece to 1,500-piece quantities for automatic insertion. They are priced from $0.975.
