surface-controlled avalanche transistor

surface-controlled avalanche transistor

[′sər·fəs kən¦trōld ′av·ə‚lanch tran‚zis·tər]
(electronics)
Transistor in which avalanche breakdown voltage is controlled by an external field applied through surface-insulating layers, and which permits operation at frequencies up to the 10-gigahertz range.
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