December 17, 2024

TDK Corporation (TSE:6762) announces the release of five new SMD multilayer varistors (MLVs). As an industry first, these components feature a reduced carbon (CO2) footprint while fulfilling demanding automotive qualification requirements. These parts are the first representatives of TDK’s new X-series, which is continually being expanded for automotive as well as for industrial and consumer applications. The X series satisfies both the growing demand for eco-friendly products, and the commercial requirement for cost-attractive products, while maintaining TDK’s high level of reliability and performance.

The first five parts are automotive qualified according to AEC-Q200, a feature which can be recognized by a “1” following the “X” in the part number. They are generally used to protect a vehicle's engine management system, electronic control units (ECUs), airbags, ABS, ESP, etc. against transient overvoltages on the battery lines resulting from events such as load dump and jump start. These components provide ESD protection up to 30 kV according to IEC 61000-4-2 and comply with automotive pulses according to ISO 7637-2/16750-2.

Available in four EIA package sizes (0603, 0805, 1206, and 1210), the new components support maximum RMS operating voltages of 14 V, 25 V, and 30 V respectively, with response times to voltage transients ranging from 10 ps to 500 ps. They handle surge currents from 5 A to 400 A for 8/20 µs pulses, while maintaining a leakage current of just 1 µA to 25 µA at the rated DC voltage and room temperature. Their operating temperature spans from -55 °C to +150 °C without derating, even at higher temperatures.

The X-series is being further expanded to a comprehensive range of overvoltage protection components, also for industrial and consumer applications. Simulation models for PSpice are available.

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Typical applications

Transient overvoltage protection for:

• Automotive battery lines

• Engine management systems

• Electronic control units (ECUs)

• Airbag, ABS, ESP, etc.

Main features and benefits

• Reliable ESD protection up to 30 kV according to IEC 61000-4-2

• Comply with automotive pulses according to ISO 7637-2/16750-2

• Load-dump and jump-start protection

• Low leakage current

• Qualified based on AEC-Q200 (X1-Series)

• No temperature derating up to +125 °C (X1-series up to +150 °C)

• High lifetime robustness

• Stable protection level

About TDK Corporation

TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on a foundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at the forefront of technological evolution and deliberately “Attracting Tomorrow.” It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK‘s comprehensive, innovation-driven portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2024, TDK posted total sales of USD 14.6 billion and employed about 101,000 people worldwide.