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.

TDK Corporation (TSE:6762) presents the compact, rugged B58620F3800B768 AFA pressure transmitter for screw mounting for a wide range of industrial applications. It is designed for a pressure range of 1 bar to 11 bar and temperatures from -20 °C to +125 °C. The dimensions are only 48 x 27 x 24 mm. The new transmitter offers a high measuring accuracy of ±0.5 percent FS (full scale) in the temperature range from +20 °C to +80 °C.

TDK Corporation (TSE: 6762) presents the AVD series of new pressure transmitters, distinguishable by their extremely low-profile design and high precision. The transmitters with B58621V* ordering codes are available in three versions for different pressure measurement ranges including 0 to 16 mbar, 0 to 100 mbar, and 0 to 7 bar.

TDK Corporation (TSE:6762) presents the new L860 NTC thermistor chip which can be directly embedded into power modules and used within sintering and AI-heavy wire bonding. Its characteristics correspond to the common MELF-R/T curve with R100 of 493 Ω. The lead-free chip with ordering code B57860L0522J500 is designed for a wide temperature range of
-55 °C to +175 °C, has dimensions of 1.6 x 1.6 x 0.5 mm.

TDK Corporation (TSE:6762) extends its MiniCell® range to include pressure transmitters in robust stainless-steel casing to measure differential pressure in industrial applications. The B58622M32* series comprises five models that measure between 0 to 500 mbar and 0 to 10 bar. Its compensated temperature range extends from -20 °C to +140 °C and the dimensions are 57 x 34 x 39 mm, including the connections.

TDK Corporation (TSE:6762) presents the new C35 type pressure sensor element, designed to measure a range of 0 to 100 mbar. It combines high sensitivity with extremely low dimensions of just 2.05 x 2.05 x 1.2 mm, enabling compact pressure sensor designs.

TDK Corporation (TSE: 6762) presents a new range of highly accurate differential pressure sensors (part number B58621V*), designed as printed circuit boards. The sensors are designed for measurement ranges of 16 mbar full-scale (FS), 100 mbar FS and 7 bar FS, with absolute accuracy of up to ±1 percent FS at temperatures from -20 °C to +70 °C.

The high precision of piezoresistive sensors and their ability to measure absolute, gauge and differential pressure allow their versatile use in a wide range of applications.
For industrial equipment and machineries the information provided by the pressure sensors can be used to operate hydraulic or pneumatic equipment in the most effective way but furthermore connect to the new Industry 4.0 standards.
The increasing requirements in automotive for fuel efficiency and reduction of harmful emission demand for long-term stable and highly accurate sensors. Besides the media resistance, some of the application require the pressure sensors to be freeze resistant but most important the sensors need to provide a reliable signal over lifetime.
All applications place increasingly demanding requirements on the distinctive characteristics of the pressure dies and call for specific design features already on the die level. The TDK pressure sensors portfolio has been developed with a strong focus on increased sensitivity and high performance with a smaller die size. In addition, particular attention is paid to specific features for media resistance and easy process ability.

NTC sensor elements are the functional basis for all kinds of temperature measurements in all major applications. TDK develops and manufactures high accuracy temperature sensors with excellent media resistance and long-term stability for the automotive, industrial, home and heating appliances markets. TDK offers standard portfolio epoxy resin and glass-encapsulated elements for temperature ranges up to 300°C, complimented by NTC chip thermistors.

TDK has expanded its portfolio with new EPCOS pressure transmitters whose performance profiles are specially tailored to the requirements of industry 4.0. These low-profile pressure sensors are characterized by their compact design, high accuracy and excellent long-term stability.