Woking, UK, January 2025 - TT Electronics, a global provider of engineered electronics for performance critical applications, today announced the launch of its new LRMAK 4-terminal shunt resistors. The low resistance metal alloy Kelvin shunt LRMAK is the latest addition to TT’s growing portfolio of current sense resistors with AEC-Q200 approval.
LRMAK SMT shunt resistors are 4-terminal (Kelvin) current sense resistors with two inverse format sizes, 0612 and 1225. Rated at up to 2W, the product is ideal for measuring the high currents found in motor control, power supply and battery management applications. Building on TT’s expertise in current sense resistors engineered to meet demanding accuracy targets, the new product offers values down to 500µΩ in the 0612 size and tolerances to 0.5% in the 1225 size. The low TCR and low inductance of this design allow accurate current sensing without compensation circuitry. The true 4-terminal structure ensures that the mounted value is accurate regardless of process variables such as solder thickness and placement variation. With a short-term overload rating of 5W for 5s and high energy capacity, this robust solution is designed to withstand high inrush or switching surges.
This newest technology, helps TT Electroncs' customers to achieve accurate and surge-proof current measurement in PCB assemblies, supporting the development of products which feature reliable control of energy consumption.
TT Electronics has been awarded more than £20 million in new and renewed defence contracts, marking a major step forward in its contribution to Europe’s rapidly evolving defence landscape.
New MELF format flameproof wirewound resistors offer surge protection and UL1412 failsafe fusing for line input protection in industrial and white goods applications
TT Electronics has successfully completed recertification of the Cleveland facility to AS9100 and Nadcap standards.