257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
107 | DF | REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) {19} |
119 | DF | .~ Bidirectional rectifier with control electrode (gate) (e.g., Triac) {9} |
130 | .~.~ Switching speed enhancement means {1} | |
131 | DF | .~.~.~> Recombination centers or deep level dopants |