Thin film chip resistors deliver stable high-frequency performance

Vishay Intertechnology, Inc. has introduced a new series of AEC-Q200 qualified thin-film chip resistors that supply high-frequency performance up to 70GHz for automotive, space, avionics, telecom, and defence applications. Provided in the compact 02016 case size, the Vishay Sfernice CHA series is available in a wide range of resistance values from 10-Ohm to 500-Ohm.

The devices offer very low internal reactance and exhibit behaviour close to a pure resistor over their large frequency range, with a nearly flat Z/R curve to 70GHz. The microwave resistors maintain their high-frequency stability even after the most stressful AEC-Q200 tests – validated by their ΔR and Z/R measurements – ensuring high performance under harsh environmental conditions.

The series is excellent for automotive ADAS, LIDAR, connectivity, and 4D radar systems; LEO satellites and space communication systems; defence guidance and telemetry systems; drones; and RF antennas. For these applications, the devices supply a limiting voltage of 30V, rated power of 30mW at +70C, and a temperature coefficient of ±100 ppm/C, with ±50ppm/C available on request.

To lower development time and costs, the devices' S-parameter data is available for electronic simulation and 3D models for Ansys HFSS, Modelithics Microwave Global Models (PCB and pad-scalable), and design kits. The resistors are supplied in tape and reel packaging and are RoHS-compliant, halogen-free, and Vishay Green.