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Class Information
Number: 257/111
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Regenerative type switching device (e.g., scr, comfet, thyristor) > Having only two terminals and no control electrode (gate), e.g., shockley diode > Triggered by v bo overvoltage means
Description: Subject matter wherein the two terminal device with no control electrode includes means to apply a voltage larger than the breakover voltage VBO

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
5352905 Semiconductor surge suppressor Oct. 4, 1994
5274253 Semiconductor protection device against abnormal voltage Dec. 28, 1993
4631561 Semiconductor overvoltage suppressor with accurately determined striking potential Dec. 23, 1986
4631567 PNPN integrated circuit protective device with integral resistor Dec. 23, 1986
4567500 Semiconductor structure for protecting integrated circuit devices Jan. 28, 1986
4216488 Lateral semiconductor diac Aug. 5, 1980
4087834 Self-protecting semiconductor device May. 2, 1978

1 2

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