NTC Thermistors: Robust Temperature Sensor for E-Mobility

By Tiera Oliver

Associate Editor

Embedded Computing Design

June 23, 2020

News

NTC Thermistors: Robust Temperature Sensor for E-Mobility

TDK Corporation announced the new B58703M1103A temperature sensor, developed for demanding e-mobility applications.

TDK Corporation announced the new B58703M1103A temperature sensor, developed for e-mobility applications. The NTC sensor is designed for a temperature range of -40°C to +150°C, where a temporary load of up to 200°C is permitted. At 25°C, the rated resistance is 10 k? with a B25/100 value of 3625 K and a tolerance of ±1 percent.

The sensor has been subjected to climatic, chemical, and mechanical testing according to the service life tests of LV 124, and in doing so, has achieved electrical resistance class H3 according to LV 123, which corresponds to 2.5 kV DC. According to the company, this high and long-term stable electrical strength is required to prevent damage, for example, to control devices throughout the service life of the vehicle.

The connecting cables of the new temperature sensor meet the LV 112-4 standard for electrical cables in motor vehicles and are twisted to improve EMC performance. The cable lengths are 655 mm and 1000 mm, as is standard. The sensor includes an M4 mounting bracket made from copper alloy for mounting purposes. This choice of material offers ideal thermal coupling and material compatibility with the copper busbar, which prevents contact corrosion.

The field of application of the new sensor is temperature monitoring of busbars, battery modules, and connector systems in e-mobility.

For more information, visit: www.tdk-electronics.tdk.com/en/ntc

Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

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