TDK Corporation (TSE:6762) announces the launch of the EPCOS B3292xM3/N3 series of X2 EMI suppression capacitors. These new components are 20% smaller than previous models and meet Grade III Test B standards for temperature, humidity, and bias (THB). Their compact size and enhanced durability suit space-constrained, high-humidity environments, especially for "across-the-line" applications in automotive and industrial settings.

The capacitors offer lead spacings from 15 mm to 37.5 mm and dimensions ranging from 18.0 x 5.0 x 10.5 mm to 42.0 x 14.0 x 25.0 mm (L x W x H), with capacitance values from 0.1 µF to 4.7 µF. Designed for harsh environments and AEC-Q200 compliant, the B3292xM3/N3 series is commonly used in automotive on-board chargers (OBCs), as well as industrial systems such as uninterruptible power supplies (UPS) and hybrid inverters for energy storage systems (ESS).

To meet Grade III Test B standards, they are tested at +85 °C and 85% relative humidity and subjected to rated AC voltage stress for 1000 hours (with lead spacing of 22.5 mm or more) or 500 hours (with 15 mm lead spacing). The components are rated for an AC voltage of 305 V and can handle a maximum DC voltage of 630 V continuously. With an operating temperature range of -40 °C to +110 °C, and self-healing properties due to their metalized polypropylene (MKP) dielectric, the B3292xM3/N3 series offers long-term reliability.

With its compact size and advanced durability, the B3292xM3/N3 series offers a reliable, high-performance solution for EMI suppression, helping engineers save space and maintain reliability in demanding environments.

TDK Corporation (TSE:6762) announces the L862 (B57862L) NTC thermistors with bendable wires and the L871 (B57871L) lead spacing NTC thermistors that can be used in a wide range of automotive and industrial applications. Both series are Pb-free and can measure temperatures between -40 °C and +155 °C with a tolerance of ±1% and ±3% respectively. At room temperature, their maximum power dissipation is 60 mW. Both series are available with different rated resistances between 1 kΩ and 100 kΩ and different R/T characteristics (see tables below and on the next page). After 10,000 h at +70 °C, the deviation of the resistance at room temperature R25 is less than 3%.

The sensor element of the L862 that is encapsulated with a black epoxy coating is just 2.6 x 6.5 mm (D x H) in size and has insulated leads of silver-plated nickel wire (AWG 30, Ø 0.25 mm). The total length of the sensor including the wires is 50 mm, with 6 mm stripped. While the dissipation factor δth of the sensor is 1.4 mW/K, its thermal cooling time constant τc is 14 s.

Also, the sensor element of the L871 is encapsulated with a black epoxy coating. It is just 2.8 x 6.0 mm (D x H) in size and has Cu-clad steel wires (Ø 0.4 mm) with a spacing of 2.5 mm. While the dissipation factor δth of the sensor is 3 mW/K, its thermal cooling time constant τc is 9 s.

As environmental awareness grows and the realization of a sustainable society becomes increasingly important, the mobility market is witnessing an active movement towards “EV adoption," aiming to transition from gasoline-powered to electric-powered motor vehicles. In order to realize higher performance electric vehicles (EVs) and electric motorcycle, next-generation electric motor technology that balances factors such as high efficiency, high reliability, compactness, light weight, and cost performance at a high level is required.
 
In this article, we make a comparison of angle sensor technologies responsible for detecting rotational angles in traction electric motor (hereafter referred to as e-motor) control and explain how our TMR angle sensors enhance your design.

TDK Corporation (TSE:6762) announces two new additions to its high-voltage contactor portfolio for harsh environments: the HVC43MC with integrated mirror contact and the HVC45 with enhanced short-circuit current handling capability. These new contactors for up to 1000 V (DC) enable reliable switching of lithium-ion batteries in traction applications, energy storage systems (ESS), and DC charging stations. These components underscore TDK’s dedication to enabling the transition to a greener, more electrified future.

With an integrated mirror contact according to IEC 60947-4-1, the HVC43MC enables safe detection of the main contact's position. This mechanically linked auxiliary contact provides reliable feedback about whether the main contact has opened or closed, enhancing system safety monitoring. The contactor can handle continuous currents up to 250 A and cut-off currents up to 450 A at 1000 V (DC) and 2000 A at 450 V (DC), respectively, all in a compact package measuring 74.5 x 78 x 40.5 mm.

With a short-circuit current handling capability of up to 12 kA for 5 ms, the HVC45 sets an industry benchmark, surpassing conventional solutions in its size class that typically achieve 8 to 10 kA. This enhanced capability addresses the requirements of modern high-energy-density batteries that can achieve higher short-circuit currents. The contactor can handle continuous currents up to 300 A and features a maximum cut-off rating of 900 A at 1000 V (DC) and 2200 A at 450 V (DC), respectively.

Both series incorporate TDK's proven gas-filled ceramic arc chamber technology and bidirectional switching capability, allowing current flow in both directions. The contactors are available with 12-V or 24-V coil voltages and are certified to CE, UKCA, and UL standards, supporting worldwide deployment.

TDK Corporation (TSE:6762) launches the EPCOS SurfIND series, a new range of current-compensated ring core double chokes for high currents and surface mounting (ordering code: B82725S2*A/B). With SurfIND, customers who prefer reflow soldering (e.g. sandwich packages in telecom equipment, industrial drives, etc.) but need high-current common-mode chokes (usually large and heavy) can now get an SMD solution. These components can filter common-mode noise for rated currents from 24 A to 36 A at a temperature of +70 °C. With additional cooling, even higher currents can be achieved. This is easy to implement as the top side can serve as a direct interface for a heat sink.

For applications with a voltage of up to 250 V (AC), the nominal inductance ranges from 120 µH to 820 µH across seven variants. With stray inductance of up to 1% of the nominal inductance, these chokes also dampen differential-mode noise. All components meet IEC/EN 60938-2 standards and share a compact footprint of 40 x 38 mm (L x W), with heights of 20.7 mm for A types and 22.3 mm for B types. Their typical resistance ranges from 0.78 mΩ to 2.21 mΩ. Rated inductance drops by less than 10% at rated current with DC magnetic bias at +20 °C.

SurfIND chokes are mounted on a plastic baseplate, with a ferrite core coated in epoxy to insulate it from the windings; both materials are UL 94 V0 approved. The special design of the connection wiring eliminates the need for adhesives while self-leading SMD leads ensure easy reflow soldering to PCBs.

On Board Chargers (OBCs) installed in electric vehicles are becoming increasingly powerful, with an output power of 22 kW. Even at higher power output levels, it is not acceptable to increase the size of the OBC itself, so compact design is required. Capacitors for the resonant circuit function are required to have high withstand voltage and low loss products that can withstand higher power densities than conventional products.
In order to meet this demand, TDK has released a new autograde C0G MLCC series with a rated voltage of 1250 V.

Through an example of the operation of a resonant capacitor in an LLC resonant converter, we will introduce why we recommend a 1250V rated C0G MLCC.

TDK, as part of its continued efforts to bring environmentally friendly technical solutions to the market, has recently developed a plating process that enables manufacturing of thick, highly precise copper patterns on thin-film substrates without using typical exposure/etching technologies. The copper deposition can be to one or both sides of the thin-film substrate to reduce the coil’s [antenna’s] DC resistance (DCR). This innovation has been achieved through an electro-plating process that uses a nano-dispersed organic polymer called polypyrrole (PPy), a material solution from Achilles Corporation and is combined with TDK’s internal process technology. TDK’s unique copper plating process employs an "additive” methodology, where copper is plated only on defined areas to form the required pattern and is in direct contrast to standard methods that etch away from a copper layer in a subtractive process. Additionally, by incorporating TDK’s proprietary high-performance magnetic shielding materials, end-product miniaturization can be realized.

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 PLE Series power inductor is a high-efficiency, low-leakage flux, ultra-compact power inductor that excels during operation with small batteries, such as those used in wearable devices.
Using our original structural design and newly developed materials, the PLE Series achieves a wide range of inductance values through advanced thin-film processes.
This chapter explains the structure and characteristics and provides other useful information including applications.　

TDK Corporation introduces the xEVCap, a standardized and modular DC link capacitor design for powertrain inverters in passenger cars, commercial and off-highway vehicles, and machinery tools. Typically, such capacitor designs are fully customized, making the development time-consuming and practical only in large production volumes. In addition, if the customer requirements change during the project, this can further increase the time required for capacitor development and thus delay the overall project.