comment on this article

High temperature NTC thermistor

Vishay Intertechnology has introduced a new AEC-Q200 qualified NTC thermistor with PEEK-insulated, nickel-iron (NiFe) leads and a low thermal gradient.

Designed to withstand high temperatures up to +185 °C, the BCcomponents NTCLE350E4 delivers fast, high accuracy temperature measurement and sensing in a wide range of automotive applications.

The NiFe alloy used in the NTCLE350E4's conductor wire features the lowest thermal conductivity currently available on the market. As a result, the device offers a thermal gradient of less than 0.01 K/K (or 1 %), dissipating almost no heat to the surrounding environment and allowing for high accuracy temperature measurement. Other conductive materials, such as copper, can deviate by several degrees.

To improve reliability in high humidity conditions, the sensor features high adhesive strength between its PEEK-insulated lead wires and encapsulating epoxy lacquer. A small maximum bead size diameter of 2.4 mm results in a fast response time of 6 s in air.

The NTCLE350E4's capabilities make it suitable for engine coolant, fuel, and manifold air pressure (MAP / TMAP) sensors in combustion engines, in addition to HVAC applications. In electric traction motors, the device can be processed by potting or molding into sensors for the protection of high current connectors. The NTCLE350E4 can also serve in oil temperature sensors (OTS) in transmission systems and liquid-cool starter generator systems, in addition to exhaust gas recirculation (EGR) applications.

The RoHS-compliant sensor offers resistance at +25 °C (R25) from 2.1 kΩ to 30 kΩ, with tolerance down to 1 %, and beta (B25/85) from 3435 K to 3984 K, with tolerance down to ± 0.5 %. The device features maximum power dissipation of 100 mW and improved resistance to noxious gases and acid.

Author
Neil Tyler

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Automotive displays

​Smartphones, tablets, televisions: touch displays are ubiquitous and are ...

EV battery management

As more vehicles become electrified so there is a need for improved levels of ...

CES 2021

The first ever all-digital CES took place last month and below we consider some ...

1200V aSiC MOSFETs

Alpha and Omega Semiconductor has announced the release of the AEC-Q101 ...

Custom MMIC design

Plextek RFI CEO Liam Devlin discusses the technical and commercial ...

Ethical Concerns

Kyle Dent talks New Electronics through some of the ethical issues that have to ...

On the charge

The UK throws away around 600 million household batteries every year, with ...