TT140N18KOFHPSA1

Series:	--
Packaging:	Bulk
Part Status:	Active
Structure:	Series Connection - All SCRs
Number of SCRs, Diodes:	2 SCRs
Voltage - Off State:	1.8kV
Current - On State (It (AV)) (Max):	159A
Current - On State (It (RMS)) (Max):	250A
Voltage - Gate Trigger (Vgt) (Max):	2V
Current - Gate Trigger (Igt) (Max):	150mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	4000A @ 50Hz
Current - Hold (Ih) (Max):	200mA
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Chassis Mount
Package / Case:	Module

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Thyristors – SCRs – Modules: TT140N18KOFHPSA1 Application Field and Working PrincipleThyristors, SCRs and Modules are components used to control the flow of electricity in electronic circuits. In particular, a thyristor, or silicon-controlled rectifier (SCR), is a type of electronic switch used in a multitude of applications. This article explores the TT140N18KOFHPSA1 SCR, discussing its application field and working principle.A TT140N18KOFHPSA1 SCR is a type of 4-pin, phase-controlled semiconductor switch which can be used to convert AC signals into DC signals or to approach an almost “ideal” resistance value in some circuits. It has a gate trigger current of 20mA, a gate trigger voltage of 2V, an off-state voltage of 800V and a maximum current handling capacity of 140A. It has a maximum DC rated current of 130A and a maximum DC peak current of 140A. As they are mainly used to convert AC signals into DC, they find application in pulse-width modulation (PWM) circuits and AC-DC power converters.The general working principle of a TT140N18KOFHPSA1 SCR can be explained as a 4-pin, semi-conductor switch which can be triggered using a current or voltage at the gate terminal. When the gate trigger current or voltage is applied, the SCR conducts, turning the load current on. This conduction will last as long as the gate current or voltage is applied. Once the gate trigger current or voltage is removed, the SCR will turn off and the current in the circuit will be interrupted.SCRs are used in many applications, including switching and power control in motor drives, speed controls, circuit protection and lighting dimmers. They can also be used in electric motor controls, LED controllers and HID controllers. In addition, they are used in applications such as soft-start motor controllers, battery chargers and current sensing applications.Furthermore, TT140N18KOFHPSA1 SCRs are also used in temperature controllers, UPS systems, power factor controllers and power supplies. They have a relatively large forward current rating, which allows them to be used in high current applications. This makes them highly suitable for applications such as welding and induction heating.In conclusion, TT140N18KOFHPSA1 SCRs are components used to control the flow of electricity in electronic circuits. These components can be triggered through current or voltage and can find application in a wide range of electronic devices including temperature controllers, power supplies and welding equipment. Furthermore, they have a high current handling capacity which allows them to be used in high current applications.

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