Press Releases

RS Components announces availability of new series of ultra-high-precision thick-film chip resistors

High-reliability devices from KOA are qualified to AEC-Q200 standard for use in automotive applications

London, UK, 30 April 2019:

RS Components (RS), the trading brand of Electrocomponents plc (LSE: ECM), a global multi-channel provider of industrial and electronic products and solutions, has announced availability of a new series of high-reliability thick-film chip resistors from KOA that are designed for high-precision use cases such as automation in industrial application or battery designs in the automotive sector.

The RS73 series of ultra-high-precision metal-glaze thick-film resistors offer tolerances of ±0.1% and a TCR of 25 ppm/°C. The series has also shown excellent long-term stability characteristics in reliability tests with resistance changing only by ±0.2%, typically, or up to ±0.4% with long-term exposure to higher temperatures in harsh environments.

A key feature of the range is that the devices are AEC-Q200 qualified for use in automotive. In addition, the series employs the manufacturer’s advanced technological know-how to protect against ‘sulfuration’. In this process, inner electrodes of chip resistors can react with sulphur gas, leading to the creation of silver sulphide and possible circuit disconnection.

Offering a resistance range from 100- up to 1M-Ohm, other key characteristics include an operating voltage of up to 100V, and up to 150V overload voltage; and an operating temperature range of –55 up to +155°C. Designed for surface mounting, the chip resistor series comes with lead-free terminations to meet EU RoHS requirements, and is suitable for both flow and reflow soldering processes.

The KOA RS73 thick-film chip resistor range is now shipping from RS in EMEA, Asia Pacific and North America.


About RS Components

RS Components, Allied Electronics & Automation, IESA and Monition are the trading brands of Electrocomponents plc, a global multi-channel provider of industrial and electronic products and solutions. We offer more than 500,000 industrial and electronics products, sourced from over 2,500 leading suppliers, and provide a wide range of value-added services to over one million customers. With operations in 32 countries, we ship more than 50,000 parcels a day.

Electrocomponents is listed on the London Stock Exchange and in the last financial year ended 31 March 2018 had revenues of £1.71bn.

For more information, please visit the website at

Editorial Contacts
Aakriti Kaushik
PR Manager - Northern Europe
RS Components

PR Agency Contact
Janice Fenton
Account Director
Publitek Technology PR
+44 (0)1225 470000

Further information is available via these links:

Twitter: @RSComponents; @designsparkRS


RS Components


Electrocomponents plc