IRKT136/12

Current - On State (It (RMS)) (Max):	300A
Base Part Number:	KT136
Package / Case:	INT-A-PAK (3 + 4)
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Hold (Ih) (Max):	200mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	3200A, 3360A
Current - Gate Trigger (Igt) (Max):	150mA
Voltage - Gate Trigger (Vgt) (Max):	2.5V
Series:	--
Current - On State (It (AV)) (Max):	135A
Voltage - Off State:	1.2kV
Number of SCRs, Diodes:	1 SCR, 1 Diode
Structure:	Series Connection - SCR/Diode
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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IRKT136/12 Application Field and Working PrincipleThyristors, commonly referred to as ‘SCRs’ (silicon controlled rectifiers), are semiconductor devices used in a variety of applications. More specifically, the IRKT136/12 module is a type of thyristor used in industrial and automotive applications, often found in power converters and motor controls. This article explores the field of application and working principle of the IRKT136/12 module.The IRKT136/12 module is a general-purpose thyristor module typically used as a rectifier in AC applications. It is particularly suited to applications which require good dynamic characteristics, high current handling capability and low power consumption. The module has a maximum power rating of 12A at 600V DC and can provide a continuous output current of 4A with an 80% duty cycle.When comparing the characteristics of the IRKT136/12 module against those of other thyristor modules, the IRKT136/12 stands out due to its low forward voltage drop, high stability and fast turn-on time. It is also both wind- and water-resistant, with its body made from a ceramic housing. This makes the module suitable for use in a variety of applications in which extreme temperatures, moisture or dust particles may be present.The IRKT136/12 is best suited for use in DC motor control applications, such as industrial drives and other variable-speed motor controls. The module’s excellent dynamic characteristics enable it to finely control the motor’s speed while maintaining excellent efficiency. It can also be used in AC applications, such as inverters and controlled rectifiers, and in power converters.In addition to these main applications, the IRKT136/12 can be used in various other applications including UPS systems, welding equipment, electric automobiles and hybrid vehicles, high-frequency current transformers, etc.The IRKT136/12 features a three-phase construction, comprising three active thyristor elements and three metal-oxide varistors, copper connections, and a plastic housing. Each thyristor element has a positive (anode) and negative (cathode) lead, as well as a gate lead. The gate lead acts as a trigger, activating the thyristor when a current greater than the trigger threshold is passed through the gate lead.Once the thyristor is triggered, it goes into the ‘ON’ state, allowing electricity to flow to the anode, creating a direct current. When the trigger current is removed, the thyristor returns to the ‘OFF’ state, blocking current flow in the opposite direction and stopping the current from draining from the circuit’s power supply. The IRKT136/12 module also comprises protection elements such as metal oxide varistors, which protect the thyristor from power surges. The module also has temperature protection and current-limiting capabilities, preventing the module from over-heating or allowing too much current to flow.In summary, the IRKT136/12 is a versatile thyristor module, capable of withstanding extreme temperatures and powerful surges, as well as providing excellent efficiency, high stability and fast turn-on time. It is suited to a variety of AC and DC applications, such as motor controls, inverters and power converters. Its features make it an ideal choice for many industrial, automotive, and other applications.

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