Small-scale strain gauges support PCB reliability testing
The C2A-06-G1350-120 rectangular rosette gage and C2A-06-015LW-120 uniaxial linear gauge are designed to detect PCB surface strains at critical locations in consumer electronics.
The miniaturization of consumer electronics — and consequent increase in component density — results in larger thermal stresses, new requirements for surviving repeated loadings, and a greater need for impact stress survival. Meeting these specifications requires accurate knowledge of strains in the PCB and on-board components. Strain gauge measurement is the quickest, most accurate, and most cost-effective method for identifying strains on a PCB, and it can be used in developing loading fixtures and test plans to optimize the testing phase.
The C2A-06-G1350-120 is a stacked rosette gauge with a compact 5 mm diameter matrix and three meters of three-conductor cable to eliminate lead wire soldering after bonding. Micro-Measurements’ Advanced Sensors strain gauge technology makes even smaller planar rosettes possible for use in surface mounting applications with restricted areas, as well as for intra-laminar strain measurement. The uniaxial linear C2A-06-015LW-120 is supplied with pre-attached cables and features an active grid length of just 0.015 in and an overall matrix of 1.4 mm by 1.9 mm. The device is ideal for installation on surface-mount components.
Samples and production quantities of the new PCB strain gauges are available now, with lead times of six weeks for prototype samples and 11 weeks for standard orders.