TDK introduces a new gold-wire-bonded optional NTC thermistor for laser diode temperature measurement

TDK Corporation (TSE: 6762) announced the introduction of the new NTCWS series of NTC thermistors with gold wire bonding. These bonding NTC thermistors can be installed in packages via gold wire bonding to enable high precision temperature detection of laser diodes (LD) for optical communication. The series will begin mass production in September 2023.

The use of LD devices in optical communication transceivers is increasing, represented by 5G and LiDAR for distance measurement between vehicles. Since the wavelength of LD varies with temperature, controlling the temperature of LD is the key to improve its performance.

TDK's new NTCWS series temperature sensors support narrow tolerances (± 1%) of resistance and B values, and can be mounted near the LD using a gold wire joint for high precision temperature sensing. The NTCWS series thermistors have a compact, lead-free design and can withstand operating temperatures from -40 to 125 °C. TDK has initially released sensors with a B value of 3930 K ± 1% (NTCWS3UF103FC1GT and NTCWS3UF103HC1GT) and plans to release more products with additional features in the future.

TDK is committed to improving temperature sensor products for industrial and automotive applications and will continue to expand its NTC thermistor portfolio to meet market demand.

Main application
LD temperature sensing for optical communication transceivers and liDAR
Main features and advantages
Supports gold wire bonding that can be installed inside the LD package
Narrow tolerance for resistance and B values (± 1%)

About TDK Corporation
TDK Corporation is a global leader in electronic solutions for the intelligent society, headquartered in Tokyo, Japan. Based on a mastery of materials science, TDK is firmly at the forefront of technological developments and deliberately "attracts tomorrow" to embrace social change. 
The company was founded in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's comprehensive, innovation-driven product portfolio includes passive components such as ceramic, aluminum electrolytic and thin-film capacitors, as well as magnetic, high-frequency, piezoelectric and protective devices. The product range also includes sensors and sensor systems, such as temperature and pressure, magnetic and MEMS sensors. In addition, TDK also provides power and energy devices, magnetic heads, etc. 

These products are marketed under the TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda product brands. TDK focuses on high-demand markets in the automotive, industrial and consumer electronics, and information and communications technology sectors. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and North and South America. In fiscal year 2023, TDK had total sales of $16.1 billion and employs approximately 103,000 people worldwide.

Source: Laser Network