VCA105-18IO7 Discrete Semiconductor Products

Current - On State (It (RMS)) (Max):	180A
Base Part Number:	VC*105
Package / Case:	ECO-PAC2
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Hold (Ih) (Max):	200mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	2250A, 2400A
Current - Gate Trigger (Igt) (Max):	150mA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Series:	--
Current - On State (It (AV)) (Max):	105A
Voltage - Off State:	1.8kV
Number of SCRs, Diodes:	2 SCRs
Structure:	Common Anode - All SCRs
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Thyristors - SCRs - Modules

A thyristor, or Silicon Controlled Rectifier (SCR), is a type of solid-state electronic device with four layers of alternating P-type and N-type silicon. Like other semiconductor devices, it only allows electrical current to pass through it when it is triggered by a suitable external voltage. The VCA105-18IO7 is a popular thyristor module used in many electronic applications.The VCA105-18IO7 is a three-phase thyristor module based on the concept of phase-controlled rectification. It consists of three SCRs, in the shape of an insulated-gate bipolar transistor (IGBT). Each one is surrounded by a flat heatsink for better thermal management. The VCA105-18IO7 can handle a peak surge current of up to 18A and has a very low on-state resistance of 0.004 ohms. It also has a built-in voltage dependent resistor (VDR) that helps control the surge current.The VCA105-18IO7 can be used in a wide variety of applications, such as controlling the speed of AC motors, dimming of lights, speed control of pumps and fans, and regulating the output of power supplies. It is also used in power converters, uninterruptible power supplies, three-phase welding machines, and photovoltaic inverters.The working principle of the VCA105-18IO7 is based on the fact that when an appropriate voltage is applied, it triggers the thyristor and turns it into a low-resistance conductor. This allows current to flow through the device and the load connected to it. When the voltage is removed, the device turns back to its non-conducting state, blocking the current flow. This process can be controlled accurately by varying the voltage applied to the device.The VCA105-18IO7 provides higher accuracy and faster regulation compared to traditional mechanical devices such as relays and contactors. It also offers higher efficiency and improved reliability due to its low on-state resistance and protection from external factors such as noise and temperature.The VCA105-18IO7 is a reliable, cost effective solution for a wide range of applications. It is easy to install and requires minimal maintenance. The device is rugged and reliable, and can withstand harsh environmental conditions. It is also designed to have a long lifespan and is highly energy-efficient.Overall, the VCA105-18IO7 is a practical, flexible and efficient device for controlling the speed of a variety of AC motors, dimming lights, regulating the output of power supplies, and more. It provides high accuracy, fast regulation, and better reliability than traditional mechanical devices. It is easy to install and maintain and is highly energy efficient. The device is designed to have a long lifespan and is built to withstand harsh environmental conditions.

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