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SCR

A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a four-layer solid state current controlling device. The name "silicon controlled rectifier" is General Electric's trade name for a type of thyristor. The SCR was developed by a team of power engineers led by Gordon Hall and commercialized by Frank W. "Bill" Gutzwiller in 1957. Some sources define silicon controlled rectifiers and thyristors as synonymous, other sources define silicon controlled rectifiers as a subset of a larger family of devices with at least four layers of alternating N and P-type material, this entire family being referred to as thyristors. According to Bill Gutzwiller, the terms "SCR" and "Controlled Rectifier" were earlier, and "Thyristor" was applied later as usage of the device spread internationally. SCRs are unidirectional devices (i.e. can conduct current only in one direction) as opposed to TRIACs which are bidirectional (i.e. current can flow through them in either direction). SCRs can be triggered normally only by currents going into the gate as opposed to TRIACs which can be triggered normally by either a positive or a negative current applied to its gate electrode.

SCR

Part No.	DS	Manufacturer	D/C	Qty	Region	Action
ACST210-8FP		STM	2017+	51000	China	Request A Quote
ACST2108FP		STM	-	4250	Germany	Request A Quote

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