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- Temperature sensors: TDK launches new Au wire bond-optional NTC thermistors for laser diode temperature measurement
Temperature sensors: TDK launches new Au wire bond-optional NTC thermistors for laser diode temperature measurement
– TDK Corporation introduces the NTCWS series of NTC thermistors with Au wire bonding for accurate temperature sensing in laser diodes used in optical communication and LiDAR.– The thermistors feature a narrow tolerance of both resistance and B value, can withstand operating temperatures of -40 to 125 °C, and are designed for mounting inside the package of the laser diode.
TDK Corporation has launched its new NTCWS series of NTC thermistors, equipped with Au wire bonding. These thermistors can be installed inside the package using Au wire bonding, facilitating precise temperature detection in laser diodes (LDs) employed in optical communication. The product series entered mass production in September 2023.
The deployment of LD devices is growing, particularly in optical communication transceivers and LiDAR used for measuring inter-vehicle distance. Temperature control of LDs is critical for performance enhancement as their wavelength varies with temperature.
The NTCWS series temperature sensors by TDK offer a tight tolerance (± 1%) of resistance and B value, enabling them to be mounted close to the LD for precise temperature detection. These compact, lead-free thermistors can endure operating temperatures ranging from -40 to 125 °C. Initially, TDK has released sensors with a B value of 3930 K ± 1% (the NTCWS3UF103FC1GT and NTCWS3UF103HC1GT), with plans to introduce more products with varied characteristics in the future.
The primary application is temperature sensing in LDs for optical communication transceivers and LiDAR. The main features include support for Au wire bonding for installation inside the LD package and a narrow tolerance (± 1 %) of both resistance and B value.
TDK remains dedicated to enhancing temperature sensor products for industrial and automotive purposes and will continue broadening its NTC thermistor range to cater to market demands. This development will significantly contribute to the electric vehicle industry by providing accurate temperature sensing solutions for laser diodes utilized in optical communication and LiDAR systems.