Temperature sensor is robust for e-mobility

Developed specifically for demanding e-mobility applications where high long term stability is required, the B58703M1103A temperature sensor has been subjected to climatic, chemical and mechanical testing.

The negative temperature co-efficient (NTC) sensor is designed by TDK to operate over the -40 to +150 degree C temperature range, whereby a temporary load of up to 200 degrees C is permitted. At 25 degrees C the rated resistance is 10kOhm with a B25/100 value of 3625K and a tolerance of ± one per cent.

The sensor has been subjected to climatic, chemical and mechanical testing according to the service life tests of LV 124, says TDK and has achieved electrical resistance class H3 according to LV 123, which corresponds to 2.5kV DC. 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 B58703M1103A 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 and 1,000mm as standard. The sensor includes an M4 mounting bracket made from copper alloy for mounting purposes. According to TDK, copper alloy offers excellent thermal coupling and material compatibility with the copper bus bar, which prevents contact corrosion.

The sensor can be used to monitor the temperature of bus bars, battery modules and connector systems in e-mobility products.

TDK was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. TDK’s comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. It also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors as well as power supplies, energy devices and magnetic heads, marketed under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda.

TDK focuses on the automotive, industrial and consumer electronics and information and communication technology markets.

The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.


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