TDK Corporation (TSE: 6762) has expanded its surface-mount multilayer varistor (MLV) product family with the standard X series (CT0402*X, CT0603*X, CT0805*X, CT1206*X, CT1210*X, CT1810*X, and CT2220*X) for industrial applications. These new SMD MLVs not only protect electronics against overvoltages, maintaining high reliability and performance in a compact size, but also help customers reduce their CO₂ footprint by up to 30 percent. Based on a tailored, innovative ceramic composition, these components can be sintered at lower temperatures than standard MLVs, reducing energy usage. Additionally, the raw material itself has a smaller CO₂ footprint.

The X series targets power supplies, factory automation, industrial IoT, and sensor interfaces where miniaturization and electrical robustness are required, including harsh environments. This follows the release and ramp-up of the X1 series for automotive applications based on the same technology platform.

Spanning case sizes from EIA0402 to EIA2220, the X series offers RMS voltage ratings from 3.5 to 40 V and varistor voltages from 8 to 350 V. They provide clamping voltages from 24 to 450 V and withstand electrostatic discharge (ESD) up to 15 kV air discharge according to IEC 61000-4-2. For surge protection, peak current handling ranges from 1 A in the smallest footprint up to 800 A. Customer-specific adjustments are possible.

These varistors respond to voltage transients within 0.5 ns and offer capacitance values as low as 6 pF, preserving signal integrity in high-speed data lines. The components operate reliably in a temperature range of -55 to +125 °C. With packaging options that support high-volume automated assembly, the X series integrates seamlessly into modern SMT processes.

By combining compact dimensions, fast response times, and robust electrical ratings, the X series enhances the resilience of electronic designs, contributing to longer service life and improved system reliability across a diverse set of industrial applications.

TDK Corporation (TSE:6762) has introduced the G series of surge protection components, comprising the G14 (ordering code: B72214G) and the G20 (B72220G). Integrating a metal oxide varistor (MOV) and a gas discharge tube (GDT) into a single hybrid design and connecting them in series leverages the strengths of both elements. This configuration reduces leakage current to virtually zero, extends the lifetime of the whole component, and provides superior surge protection compared to using either element separately in parallel. These new components are commonly used in power supplies, chargers, appliances, surge protection devices, and communication systems that demand both efficiency and reliability.

Innovation through series hybrid design:

• Zero standby leakage current: With the GDT isolating the MOV during normal operation, leakage currents are virtually eliminated, maximizing efficiency.

• Extended MOV lifetime: The MOV is only engaging when the GDT has fired, drastically reducing stress and aging.

• Reliable surge handling: When fired, the GDT quickly becomes low resistive and acts as the "first line of defense." Meanwhile, the MOV clamps residual voltages, absorbs remaining energy, and eliminates follow-current to prevent the GDT from reigniting.

• Compact integration: A single hybrid device simplifies design and reduces board space compared to discrete solutions.

The G series is available in two leaded versions: G14 and G20, which refer to MOV disk diameters of 14 mm and 20 mm, respectively. G14 models support AC operating voltages from 50 V to 680 V, while G20 versions extend this range to 750 V. The maximum surge current capability for a single pulse (8/20 µs) is 6,000 A (G14) and 10,000 A (G20), absorbing up to 200 J (G14) or 490 J (G20) of energy. Their operating temperature range is specified as -40 °C to +105 °C.

TDK Corporation (TSE:6762) has expanded its ultra-low clamping voltage TVS diode lineup with three new models in the SD0201 series, tailored for high-speed consumer electronics interfaces. These TVS diodes offer compact protection for USB Type-C, HDMI, DisplayPort, and Thunderbolt connections in smartphones, laptops, tablets, wearables, and networking devices.

Each component comes in a 0201 chip-scale package (CSP), measuring just 0.58 x 0.28 x 0.15 mm (L x W x H) for space-constrained designs. Having working voltages of ±1 V, ±2 V, and ±3.6 V, the new TVS diodes safeguard sensitive circuits from electrostatic discharge (ESD) and transient surges. This means they meet IEC 61000-4-2 standards with ESD discharge robustness up to ±15 kV and support surge current handling up to 7 A, depending on the variant. Their symmetrical design enables bidirectional protection and thus flexible PCB routing, while very low leakage currents and dynamic resistance as low as 0.16 Ω enhance application-level efficiency.

The individual components differ in their DC working voltage and parasitic capacitance: the SD0201SL-S1-ULC101 (ordering code B74121U1036M060) has a working voltage of ±3.6 V and a parasitic capacitance of 0.65 pF, the SD0201-S2-ULC105 (B74121U1020M060) of ±2 V and 0.7 pF, and the SD0201SL-S1-ULC104 (B74121U2010M060) of ±1 V and 0.15 pF. A LTspice model library for SEED simulations for TVS diodes is available for download.

TDK’s new ultra-low clamping voltage TVS diodes are engineered to meet the challenges in today and tomorrow’s consumer electronics, ensuring reliable performance and safeguarding sensitive electronic devices from damaging transients.

TDK Corporation (TSE:6762) presents its new EPCOS B3264xH series of double-sided metallized polypropylene film capacitors (MMKP). These components are designed to meet the demands of high-frequency applications with high pulse stress of up to 6,500 V/µs, where traditional solutions may fall short. They excel in resonant circuits, particularly the popular LLC topology. Due to their compact form factor and AEC-Q200 compliance, these components are generally used in onboard chargers (OBCs) and DC-DC converters in xEVs, as well as in uninterruptible power supplies (UPS), industrial switch-mode power supplies (SMPS), and electronic ballasts.

These capacitors offer a rated DC voltage range from 630 V to 2000 V and cover capacitance values from 2.2 µF up to 470 µF. They are engineered with a special dielectric system combining polypropylene and double-sided metallized PET film, delivering high pulse strength and exceptional current handling capabilities. Rated for continuous operation from -55 °C to +125 °C, the series ensures long-term reliability even under harsh environmental conditions.

The B3264xH capacitors stand out with their high insulation resistance, low dissipation factor, and robust self-healing properties, resulting in a service life of 200,000 hours at +85 °C and full rated voltage. These components are available in three lead spacing variants (10 mm, 15 mm, and 22.5 mm), enabling flexible integration into space-constrained circuit layouts.

By combining high performance with automotive-grade reliability, TDK’s B3264xH series helps designers optimize efficiency and longevity in advanced power electronics systems across both automotive and industrial sectors.

For the B3264xH, corresponding simulation models for various Spice versions and ANYSYS are available for download here.

• New 100-V product for commercial applications with 1 μF capacitance in 1608 case size (achieving large capacitance)
• Contributes to the reduction of component count and the miniaturization of sets

TDK Corporation (TSE: 6762) has expanded its C series for commercial multilayer ceramic capacitors (MLCCs) to 1 µF at 100 V in the 1608 size (1.6 x 0.8 x 0.8 mm – L x W x H), with X7R characteristics. This is the industry’s highest capacitance* for a 100-V-rated product in this size and this temperature characteristic. Mass production of the product series began in June 2025.

In recent years, 48-V systems have become increasingly common for AI servers, energy storage systems, and a wide range of industrial equipment to improve system efficiency and reduce power loss. This has led to a growing demand for 100 V-rated MLCCs used as capacitors on power lines.

This new 100-V product of the C series achieves ten times the capacity of conventional products of the same size, thanks to optimized material selection and product design. Therefore, it makes it possible to reduce the number of MLCCs used and the mounting area, contributing to the reduction of component counts and miniaturization of sets. TDK will further expand its lineup to meet the needs of customers.

*Source: TDK, as of June 2025

• The smallest size in the industry* in the 0201 size
• Achieves high-frequency characteristics through proprietary patterning and sintering technologies
• Lineup of inductances with fine increments, taking advantage of the features of the multilayer method
• Wide temperature range of -55 °C to +125 °C

TDK Corporation (TSE: 6762) announces the expansion of the MUQ0201022HA series* of high-frequency inductors. The 0201 size (0.25 x 0.125 x 0.2 mm; L x W x T) are the smallest inductors of their kind in the industry with the same electrical characteristics as the existing MHQ0402PSA series, which is one size larger at 0402 (0.4 x 0.2 mm; L x W). The lineup covers an inductance from 0.6 nH to 3.6 nH. Mass production of these new components began in May 2025.

As mobile devices such as smartphones and wearable devices become increasingly sophisticated and compact, there is a growing need for small-sized, high-performance components. By applying its proprietary patterning and sintering technologies, TDK has achieved high-frequency characteristics equivalent to or better than existing products while reducing the component mounting area by around half. TDK will further expand its line to meet the needs of customers.

*Source: TDK, as of May 2025

• Compatible with currents as high as 8 A
• Saves space by reducing components and footprint
• Highly reliable for use in high-temperature environments like automotive and industrial applications

TDK Corporation (TSE: 6762) has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines (1.6 x 0.8 x 0.6 mm – L x W x H). Mass production of the product series began in May 2025.

These 1608-size chip beads for power supply lines achieve a rated current of 8 A, the industry’s highest value*. Chip beads are used as noise suppression components in power and signal circuits. In a circuit with a current of 8 A or more, usually two or more chip beads must be used in parallel. This has the disadvantage that the current is not evenly distributed between the ferrite beads. TDK’s new product simplifies the circuit structure because fewer components are required compared to conventional methods, and it improves the quality of power circuits.

The MPZ1608-PH series of products halves the component footprint in comparison with circuits using two conventional 1608-sized chip beads. Moreover, the highly reliable components with a specified operating temperature of up to +125 °C are designed to be used in high-temperature environments like automotive and industrial equipment applications.

With TDK’s proprietary materials and structural designs adapted to market needs, the company is committed to expanding its lineup of high rated current products in the automotive, industrial equipment, and consumer equipment areas. These chip beads will serve as EMC components contributing to the enhancement of the quality of power circuits.

*Source: TDK, as of May 2025