MCK700-20IO1W Discrete Semiconductor Products

Series:	--
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Structure:	Common Cathode - All SCRs
Number of SCRs, Diodes:	2 SCRs
Voltage - Off State:	2kV
Current - On State (It (AV)) (Max):	700A
Current - On State (It (RMS)) (Max):	1331A
Current - Non Rep. Surge 50, 60Hz (Itsm):	18200 @ 50MHz
Operating Temperature:	--
Mounting Type:	Chassis Mount
Package / Case:	WC-500
Base Part Number:	MC*700

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MCK700-20IO1W application field and working principle

Thyristors, SCRs and modules constitute an important class of semiconductor devices used in power control and signal processing applications. The MCK700-20IO1W is a fast-responding low-cost silicon-controlled rectifier (SCR) module designed by Infineon (formerly Siemens Semiconductor). It is designed to control medium- and high-voltage applications where fast-switching speeds, simple logic connections, and low cost make it attractive to a wide range of customers.The MCK700-20IO1W consists of eight individual Silicon Controlled Rectifiers (SCRs) integrated into a single module. It features on-chip overvoltage protection, fast turn-on, low forward start voltage capability, and low gate power consumption. The low-cost construction utilizes a “bucket-filler” process with replacement diodes for SCRs. The module\'s modular format helps minimize electromagnetic noise generation, making it well-suited for high-speed, high-density switching applications.The MCK700-20IO1W\'s applications include motor controls, pump controls, spray controls, welding controls, lighting controls, and other high-voltage applications. In motor control applications, it is used as a gate driver to control the solid-state relay that switches the motor on and off. In other applications, the SCRs can be used in a network of low-power devices to control a higher-power device such as a transformer or a thyristor.The working principle of the MCK700-20IO1W is based on the forward biasing of the SCR structure. Anode and Cathode are the two main electrodes. The anode is the positive voltage terminal, and the cathode is the negative voltage terminal. A gate is an extra electrode connected to the base of the SCR. When the anode and cathode are forward biased, the current flows from anode to cathode. Gate current must flow through the gate terminal in order to turn on the SCR.Once the module is turned on, the current continues to flow even after the gate voltage is removed. To turn off the module, the voltage must be reversed, which causes the flow of current to stop. This reverse operation is known as anode-cathode commutation. The SCRs are constructed to be able to handle high voltages and currents without sustaining damage.The MCK700-20IO1W is designed to provide many advantages over other power and control solutions including high switching capability and cost efficiency. The module\'s low-cost construction, fast turn-on and low forward start voltage feature, and low gate power consumption make it ideal for applications where price and performance are important. Its modular format also helps minimize electromagnetic noise generation and makes it ideal for high-speed, high-density switching applications. Its modern control solutions and easy-to-use product format make this module an attractive option for a wide range of customers.

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