47N3H
for vacuum junctions with glass LENZOS etc .; 1000000 * TFLE at temperatures ranging from -70 to +400 ºC less than 9.5−10.5 [1 / ºC]
for vacuum junctions with glass LENZOS etc .; 1000000 * TFLE at temperatures ranging from -70 to +400 ºC less than 9.5−10.5 [1 / ºC]