Fr4 Pcb Temperature Rating. Our boards are made using the industry standard fr4 laminate. From our manufacturing specifications webpages.
In other words if a pcb rated at 130 c is heated beyond its glass transition temperature it loses its solid form. The heat resistance characteristic of fr4 is denoted by tg or glass transition temperature where it changes from solid to a soft and rubbery state. How many reflow cycles can fr4 materials withstand.
Temperature of a copper trace.
Dielectric breakdown degradation of the composite printed circuit board material and mechanical structure over time and temperature for mission critical applications. In 2006 global printed circuit board pcb production exceeded 45 billion. The heat resistance characteristic of fr4 is denoted by tg or glass transition temperature where it changes from solid to a soft and rubbery state. 0 010 to 5 0 48 x 120 0 125 to 127 standard sheet size 122 x 305 convolute tubing.
