industry news
Subscribe Now

High reliability thick-film resistors from TT Electronics get smaller

Ideal for applications where footprint size is a critical factor

Woking, UK, 25 April 2018 – TT Electronics, a global provider of engineered electronics for performance critical applications, has announced the introduction of two additional resistor types that expand and enhance its high reliability CR and HR series.  The latest versions of these thick-film chip resistors are in the smaller 0603 size and hence offer greater opportunities for use in compact circuits where guaranteed performance and footprint size are critical.

For use in applications in the aerospace, military, communications, medical and industrial market segments, both resistor series’ thick-film elements have a higher surge tolerance than thin-film, also improving reliability. The CR0603 resistors are available in values from 1R0 to 10M with tolerance values down to 0.1 percent, and have the option of release to CECC 40401-008. In addition to military and aerospace use, particular applications include sub-sea repeaters, mainframe systems and Hi-Rel systems.  The HR0603 resistors ( http://www.ttelectronics.com/node/18343 ) are available in values from 10M to 20G with tolerance values down to 5 percent supporting applications that include high gain amplifiers, infra-red and glass break sensors, plus smoke, gas and medical monitors.

TT Electronics’ CR series resistors’ optional screened release enhances reliability and reduces field failures, and for circuit designers who need to guarantee the reliability of critical circuits in compact PCB areas they provide low demonstrated FIT rates compared to competing commodity products. Seven sizes are now available from 0503 up to 2512. The CECC approved resistors are also available as shorting links ( http://www.ttelectronics.com/node/18341 ).

The HR series high ohmic value resistors ( http://www.ttelectronics.com/node/18342 ) offer enhanced reliability and reduced field failures compared to series connected, multi-chip solutions for circuit designers who need to achieve stable, high ohmic values in compact PCB areas. The resistors offer a low voltage coefficient of resistance and, demonstrating versatility, custom designs and sizes are available. As a high resistance device, power dissipation is always small, hence the rating is determined by voltage considerations only, and varies from 50V for the smallest 0503 resistors, to the 200V for the largest 1206 sizes, and five sizes are now available.

Both resistor series’ solder terminations have a nickel barrier layer that ensures excellent ‘leach’ resistance properties and solderability, and they will withstand immersion in solder at 260°C for 30 seconds. An ambient temperature range of -55 to +155°C is specified for both ranges, and construction-wise they comprise a thick-film resistor material with overglaze and organic protection screen printed on a 96% alumina substrate.  Both the CR and HR ranges include gold wire bond or solder terminations, and all relevant marking information is recorded on the primary package or reel.

Download the respective CR and HR resistor series datasheets at:
http://www.ttelectronics.com/sites/default/files/resistors-datasheets/CR.pdf
http://www.ttelectronics.com/sites/default/files/resistors-datasheets/HR.pdf

About TT Electronics plc
TT Electronics is a global provider of engineered electronics for performance critical applications. It works with market-leading customers in the industrial, aerospace and defence, medical and transportation sectors.
With headquarters in Woking, UK, TT Electronics employs approximately 4800 staff and operates from 27 locations around the world. It has three divisions: Global Manufacturing Solutions, Power Electronics and Sensors and Specialist Components.

For more information about TT Electronics visit http://www.ttelectronics.com.

Leave a Reply

featured blogs
Aug 20, 2018
Xilinx is holding three Developer Forums later this year and registration for the two October events is now open. The US event is being held at the Fairmont Hotel in downtown San Jose on October 1-2. The Beijing event is being held at the Beijing International Hotel on Octobe...
Aug 20, 2018
'€œCircle the wagons.'€ We can find wisdom in these Pilgrim words. The majority of multi-layer printed circuit boards feature at least one, and often a few or several layers that are a ground pour. The b...
Aug 20, 2018
Last summer, I took Fridays to write about technology museums. I planned to do a series on Fridays this summer on the odd jobs that I have done in my life before I started what you might consider my real career. But then Cadence Cloud took precedence. But now it is the dog-da...
Aug 17, 2018
Samtec’s growing portfolio of high-performance Silicon-to-Silicon'„¢ Applications Solutions answer the design challenges of routing 56 Gbps signals through a system. However, finding the ideal solution in a single-click probably is an obstacle. Samtec last updated the...
Jul 30, 2018
As discussed in part 1 of this blog post, each instance of an Achronix Speedcore eFPGA in your ASIC or SoC design must be configured after the system powers up because Speedcore eFPGAs employ nonvolatile SRAM technology to store its configuration bits. The time required to pr...