TDK Corporation has introduced the new MHQ1005075HA Series of inductors for automotive high-frequency circuits. Mainly, this product uses the same materials and construction methods as the conventional product. However, it applies TDK’s proprietary design expertise to the internal structure from the perspective of fail-safe design. The series is 1005 size (1.0 × 0.5 × 0.7mm – L x W x H), and the inductance ranges from 1.0nH to 56nH. Mass production of the product series began in February 2024.

Inductors for high-frequency circuits for automotive or infrastructure use must meet higher standards for safety and reliability, designed based on AEC-Q200.

The product leverages TDK’s one-of-a-kind design expertise in the design of the internal structure to realize the high-frequency properties equal or superior to conventional products. For example, the design of the inductor’s internal structure reduces the chances of an open failure due to cracks in the mount points of the component. Combined with automotive circuit board manufacturing guidelines, the TDK MHQ1005075HA inductor can deliver a sizable increase in reliability in an automotive environment. TDK will further expand its line to meet the evolving needs of customers.

Main Applications

Specifically, these inductors suit high-frequency circuits for automotive equipment (transmitter-receiver circuitry for communications inside and outside the car, such as telematics and V2X). Also, they are used in high-frequency transmitter-receiver circuitry for radio communications of smartphones, tablets, base stations and other devices (used as a component for impedance).