TT Electronics announced its TFHP series thin film, high power chip resistors. The TFHP product family combines high power and high precision in a single resistor, capitalising on aluminium nitride (AIN) ceramic substrate with nearly six times the conductivity of alumina, the conventional substrate material for chip resistors. This high power density component saves printed circuit board (PCB) area and can boost reliability by restricting the temperature rise in the component hotspot. TFHP series thin film high-power chip resistors are optimised for precision power supply, power amplifier, and process control applications, which all benefit from the enhanced heat transfer from element to terminals of this specialist design.
“Aluminium nitride-based TFHP with the precision of thin film technology is a strategic addition to TT’s growing portfolio of power chip resistors,” said Nick Atkinson, Senior Product Line Manager, TT Electronics. “The unique value these resistors provide gives designers the opportunity to reduce component size, minimise temperature rise, and increase the reliability of their high-power analogue circuit designs.”
Building on TT’s expertise in power chip resistors engineered to meet demanding thermal management targets, the new TFHP series offers 2W in 1206 and 6W in 2512 chip sizes. In addition, TFHP features large area terminations for improved thermal contact with a PCB. These high-power resistors also offer greater precision than thick film alternatives, delivering 0.1% tolerance, 25ppm/°C TCR combined with reduced self-heating to improve linearity.