Ferrite inductors offer lower DCR

Vishay Intertechnology, Inc. has expanded its shielded IFDC and semi-shielded IFSC series of wirewound, surface-mount ferrite inductors with three new devices in the 2020DE, 3232DB and 5050HZ case sizes. The new ferrite inductors, the IFDC-5050HZ, IFSC-2020DE-01, and IFSC-3232DB-01, offer improved performance at a lower cost than previous-generation solutions, Vishay said.

(Source: Vishay Intertechnology Inc.)

The Vishay Dale inductors feature 40% lower direct current resistance (DCR) than previous-generation devices with higher inductance ratings up to 1 mH and current ratings up to 14 A for computer and consumer applications. The IFSC-2020DE-01 and IFSC-3232DB-01 offer 40% lower DCR, while the IFDC-5050HZ supports higher saturation currents up to 14 A.

The IFDC-5050HZ, IFSC-2020DE-01 and IFSC-3232DB-01 match the performance of previous-generation ferrite solutions with a 60% smaller size, while offering enhanced performance compared to similar-sized devices, including higher operating temperatures to 125°C and operating voltages of 120 V. While other high performance inductors typically offer a maximum inductance of 100 µH, the new devices achieve significantly higher values of 470 µH for the IFSC-2020DE-01 and IFSC-3232DB-01 and 1 mH for the IFDC-5050HZ, Vishay said.

The inductors offer enhanced efficiency thanks to their low loss ferrite core construction and low DCR, making them suited for use as energy storage inductors in a variety of DC/DC conversion topologies in consumer electronics and battery-powered devices. The IFSC and IFDC families also can be used in differential LC filter topologies for noise suppression on power lines. Target markets include consumer entertainment devices such as televisions, sound bars and audio and gaming systems; general computing equipment such as desktops, monitors and scanners; as well as other household appliances.

Key specifications:

(Source: Vishay Intertechnology Inc.)

Samples and production quantities of the IFSC and IFDC inductors are available now. Lead time is 10 to 12 weeks.