TDK Co., Ltd. (TSE: 6762) introduced a new VLS5030EX-D inductor (5.3x5.0x3.0mm (L x W x H)) as a part of the VLS-EX-D series wound ferrite power inductor for automobile power circuit. These small components have excellent DC superposition characteristics and can also guarantee performance at operating temperatures up to 150 ° C. The inductor is applicable to headlamp, airbag, electric power steering system (EPS), advanced driving assistance system (ADAS), engine control unit (ECU) and various other power circuit applications, and has been in mass production since October 2022.

Recently, the number of ECUs installed under the hood has increased. These ECUs are used for the electrification of various vehicle control functions, as well as information entertainment, automatic driving and other applications. This small component provides support for the realization of automobile coaxial transmission power (PoC), and has excellent DC superposition characteristics. It can be used for data transmission and power supply, meeting the requirements of Advanced Driving Assistance System (ADAS) using Low Voltage Differential Signal (LVDS) transmission, for example. In addition, with the improvement of integrated circuit processing capacity, higher current is required, and VLS-EX-D series helps to meet these specifications.

Compared with the standard VLS-EX-H series of TDK, the rated current of the new VLS-EX-D series inductor is higher. These improvements are attributed to the use of TDK's innovative metal magnetic materials for magnetic shielding functions. Specifically, for VLS5030EX-D inductor, the rated Isat is 4.7 μ 3.3A at H, an increase of about 6% compared with standard elements of the same size 5.3x5.0x3.0mm (LxWxH). In addition, thanks to the welding method of connecting the winding wire to the external electrode, high reliability is achieved when used in the reflow and high temperature environment.

TDK will continue to expand its VLS-EX-D series product portfolio to meet various automotive application requirements centered on ADAS and meet customer needs.

key word

● Isat: Saturated current value is based on inductance change (30% lower than initial inductance value)

Main applications

● Vehicle power circuit for ADAS, EPS, PoC, various ECUs, etc Main features and advantages

● Support the application temperature of the power circuit under the hood up to 150 ° C

● TDK's innovative metal magnetic materials are used for the magnetic shielding function to achieve the DC superposition characteristic of high rated current

● Adopt the wire winding connection structure of welding wire winding and terminal, with high reliability

● Meet AEC-Q200 Rev D requirements for automotive applications

Key data

The rated current shall be Isat or Itemp, whichever is lower.



Isat: current value is based on inductance change (30% lower than initial inductance value)



Itemp: The current value is based on the temperature increase (by self heating, the temperature increases by 40 ° C)



*Itemp varies according to the use environment (circuit board specification, installation density, etc.)