Used in the PCB  manufacture for  LED  Tester.
Devused and produced according to china /south Korea and Japan combined listed in JPCA-TMC-LED01S  and JPCA-TMC-LED02T
Suitable  for testing the equivalent thermal   resisitance  and conductivity of the substrate  in horizontal and thickness direction  .
The first one to find out the testing the equivalent  thermal resistance and conductivity of the substrate board in horizontal direction
Based on the principle of steady state and high repatabablity  .
Steady- state thermal resistance monitoring
Easy operation