As data centers and communications networks evolve to support faster speeds and greater bandwidth, the demand for high-performance optical transceivers is surging. With the shift toward higher output and compact, high-density designs, thermal management has become a critical factor in maintaining system reliability and performance. This article introduces TDK’s bondable NTC thermistors—engineered to meet the thermal challenges of next-generation optical transceivers. It outlines key features, product options, and the practical advantages these components offer to design engineers focused on innovation and operational stability.

TDK Corporation (TSE:6762) launches B58101A0851A000, the first in a new line of immersion temperature sensors (ITS), designed specifically for EV powertrain cooling applications. This highly responsive, fully sealed NTC thermistor is engineered to provide fast and precise temperature control, e.g., for oil-cooled systems. Oil cooling is anticipated to become the dominant temperature management method in the electric drivetrain of EVs. Leveraging TDK's expertise in developing tailored temperature sensor solutions, the ITS offers a flexible, customizable design adaptable to various installation positions, cooling fluids, and mounting configurations.

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's NTCRP series (NTC thermistors) are used in a wide range of applications, including electric vehicle drive motors, batteries, and industrial equipment temperature detection, which require high reliability. This article explains thermal response, a very important characteristic of NTC thermistors, and introduces the method of measuring the response of the NTCRP series.

TDK's NTCRP series (NTC thermistors) are used in a wide range of applications, including drive motors and batteries for electric vehicles and temperature sensing for industrial equipment. These products are designed to meet stringent reliability requirements.
Insulation resistance and dielectric withstand voltage are particularly crucial parameters for ensuring both safety and reliability during end-user operation.
This article aims to explain the test methods for evaluating the insulation resistance and dielectric withstand voltage of the NTCRP series.

The technology that delivers the metaverse will build on the technology for virtual reality, using more sensors, and more different kinds of sensors. TDK has one of the richest sensor portfolios in the industry, extensive software expertise, and excels at sensor fusion.

NTC (Negative Temperature Coefficient) thermistors are thermally sensitive semiconductor resistors which show a decrease in resistance as temperature increases, and its rate of change is extremely large.

Its main applications include temperature sensing in electronic equipment and temperature compensation for module products.

However, if the user misuses the product, it may not function properly and, in the worst case, this may cause malfunctions.

This page introduces the causes and countermeasures for ”cracks” and ”melting of ceramics” as failure modes caused by improper use of NTC thermistors.

Service robots are widely used in various situations such as logistics / transport, security, cleaning, housework, hobbies / entertainment and care / assistance. Since service robots are used in a wide variety of situations, it is necessary to fulfil many requirements such as smooth communication with humans (HMI), ensuring safety and responding to changes in the real time. In service robots, the role of a sensor is very important. In this article, we will take a vacuum cleaner robots as an example.