㈠ Features：

  Ⅰ.Surface glazed, won't  be  easily  polluted or eroded by chemistry gas,
     high insulating capacity,can resist humidity and heat well，can be used
     in the atrocious environment.
  Ⅱ.Good  overload  and heat  durability capacity ,the useful time is longer
     than the others, withstand high voltage.
  Ⅲ.Resistance tolerance:±1%、±2%、±5%、±10%.

㈡Constructions：

㈢Power Rating:
  10W,50W,100W,300W...500W
㈣Tolerance:
  J=±5%,K=±10%
㈤Resistance Range:
  1~100K
㈥T.C.R.:
  ±250PPM/℃