257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
107 | DF | REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) {19} |
177 | DF | .~ With housing or external electrode {3} |
181 | DF | .~.~ With large area flexible electrodes in press contact with opposite sides of active semiconductor chip and surrounded by an insulating element (e.g., ring) {1} |
182 | .~.~.~ With lead feedthrough means on side of housing |