October 13, 2016 - TT Electronics, a provider of engineered electronics for performance critical applications, launched a zero ohm link designed for making optional connections on printed circuit board assemblies. The LRZ0603 offers a compact 6A zero ohm link in a surface mount ceramic chip format.
With target markets in the automotive, industrial and instrumentation sectors the link is aimed at designers of a wide range of products including power supplies, small motor or actuator drive systems and power management. The link is used for making optional connecting points in a PCB, allowing a common PCB to be used for multiple product variants, saving on design time and inventory. The LRZ0603 can also be used as a crossover to simplify PCB design by reducing the number of layers needed.
The LRZ0603 features a current rating of 6A in SMD 0603 size (1.6mm × 0.8mm) thus reducing the PCB area required for a high current link. It is AEC-Q200 qualified. The link’s residual resistance value is closer to the zero ohm characteristic with negligible voltage drop and its internal thermal impedance minimizes heating in the assembly.
A thick film copper conductive element is screen printed on a 96% alumina substrate resulting in far higher current ratings for a given footprint. This 0603 size has a similar rating to the leading competing 2512 size i.e. with approximately 16 times larger area, and a much higher current rating than competing parts of the same 0603 size.
The LRZ0603’s wrap-around copper terminations have an electroplated nickel barrier and solderable coating, which ensures ‘leach’ resistance properties and solderability. Chips can withstand immersion in solder at 260°C for 30 seconds and are suitable for reflow or wave soldering processes.
