BT258S-800LT,118 Discrete Semiconductor Products

Current - Hold (Ih) (Max):	6mA
Base Part Number:	BT258
Supplier Device Package:	DPAK
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
SCR Type:	Sensitive Gate
Current - Non Rep. Surge 50, 60Hz (Itsm):	75A, 82A
Current - Off State (Max):	2.5mA
Series:	--
Current - On State (It (RMS)) (Max):	8A
Current - On State (It (AV)) (Max):	5A
Voltage - On State (Vtm) (Max):	1.6V
Current - Gate Trigger (Igt) (Max):	50µA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Voltage - Off State:	800V
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Thyristors - SCRs

Thyristors are semi-conductor devices designed to control and switch electric power. The acronym SCR stands for Silicon Control Rectifier and is a three-terminal semiconductor device with three layers of alternating n- and p-type semiconductors. This type of thyristor is also known as a Controlled Rectifier. SCRs are widely used in various applications including power control, phase control, rectification and other switching operations.

BT258S-800LT,118 Application Field and Working Principle

The BT258S-800LT,118 is a highly reliable SCR manufactured by HuuVinh Semiconductor. It is a silicon-controlled power switch with 800V breakdown voltage, 120kA surge current and is IC compatible. This SCR is capable of controlling AC or DC loads, inductive, resistive and capacitive. It is widely used in a variety of applications including motor speed control circuits, UPS systems and lighting control. The BT258S-800LT,118 SCR utilizes reverse-biased blocking technology to achieve control of the electrical power. In the off-state, the SCR acts as an open circuit and no current will flow through it. When the SCR is turned on, the current will be conducted in the forward direction. The voltage between the gate and cathode needs to be greater than the turn-on voltage of the SCR to maintain the forward-conducting state of the SCR. When the gate voltage is removed, the SCR is turned off and the current will be reduced to its leakage current. The BT258S has an excellent commutation performance, and exhibits good immunity to false triggering due to voltage overshoots or radio-freque

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