TM8050H-8W

Current - On State (It (RMS)) (Max):	80A
Supplier Device Package:	TO-247
Package / Case:	TO-247-3
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C (TJ)
SCR Type:	Sensitive Gate
Current - Non Rep. Surge 50, 60Hz (Itsm):	670A, 731A
Current - Off State (Max):	20µA
Current - Hold (Ih) (Max):	100mA
Series:	--
Current - On State (It (AV)) (Max):	50A
Voltage - On State (Vtm) (Max):	1.55V
Current - Gate Trigger (Igt) (Max):	50mA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Voltage - Off State:	800V
Part Status:	Active
Packaging:	Tube

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The TM8050H-8W is one of the many common thyristors, also known as silicon-controlled rectifiers (SCRs). These devices are semiconductor switches that are specifically designed to be able to both block and pass current based on a voltage or current control signal. They are available in both standard and sensitive gate versions, and can be triggered using either current or voltage signals. This particular thyristor, the TM8050H-8W, is an 8A rated, 50V sensitive gate SCR with a VDRM of up to 80V. It is an unencapsulated version of the TM8050H-8W, meaning it has an uninsulated base, an exposed gate, and no internal heatsink.In terms of its application field, the TM8050H-8W is ideal for use in motor control, lighting control, and bidirectional motor control applications. It is capable of switching up to 8A continuously and a peak of 60A (depending on temperature), meaning it can be used to control a wide range of current requirements.The working principle of a thyristor is relatively simple. An input voltage is applied to the gate, triggering a flow of current between the anode and cathode. This then causes a positive potential difference, known as a ‘holding current’, to be maintained between the two terminals. As long as this holding current is applied, the thyristor remains on and current passes through it. When the holding current is removed, the SCR switches off and current flow ceases. In the case of the TM8050H-8W, a single pulse will turn it on, but the device will need a second pulse to turn it back off. This is one of the main differences between standard and sensitive gate SCRs.The TM8050H-8W also has a variety of features that make it ideal for control applications, such as low power dissipation (200mW max), high surge capability (up to 400A), and no temperature derating. This makes it perfect for controlling powerful loads, such as motors and solenoids, in a fast and efficient manner.Overall, the TM8050H-8W is a highly robust and reliable SCR that is ideal for controlling a wide range of applications. Its ability to block and pass current based on an input voltage or current control signal make it a versatile device, and its low power dissipation and high surge capabilities make it perfect for controlling powerful loads. This makes it a great choice for motor control, lighting control, and bidirectional motor control applications.

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