2N689

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Voltage - Off State:	500V
Voltage - Gate Trigger (Vgt) (Max):	2V
Current - Gate Trigger (Igt) (Max):	40mA
Voltage - On State (Vtm) (Max):	2V
Current - On State (It (RMS)) (Max):	25A
Current - Hold (Ih) (Max):	100mA
Current - Off State (Max):	6mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	200A @ 60Hz
SCR Type:	Standard Recovery
Operating Temperature:	-65°C ~ 125°C
Mounting Type:	Chassis, Stud Mount
Package / Case:	TO-208AA, TO-48-3, Stud
Supplier Device Package:	TO-48

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2N689 Thyristors - SCRs Application Field and Working Principle

Thyristors - SCRs are solid-state switches that can switch the current in the circuit. They are highly reliable when utilized in properly designed circuits and can be used in many applications. A Silicon controlled rectifier (SCR) is a solid state device usually used for controlling the flow of electricity in an electrical circuit. The silicon controlled rectifier or SCR has become a general purpose component in most high power circuit. SCRs are formed from three layers of alternating N and P-type semiconductor material. This is why SCRs are also known as thyristors.SCRs are very useful in high voltage switching applications where you want to be able to control the current without having to create a mechanical connection. The 2N689 is one of the most popular SCRs due to its high voltage and current capabilities and ease of use.

Application Field

SCRs can be used in many different fields, such as power distribution, industrial control, motor control, and many other applications.In power distribution and industrial applications, SCRs can be used to control the flow of electricity. SCRs can be used to start and stop motors and to regulate the current and voltage in the circuit. SCRs can also be used in motor control applications, such as motor starters, speed controllers, and protection devices.In industrial applications, SCRs can also be used in process control, logic control, and sequencing. SCRs can be used as timers to control how long a machine or process runs. They can also be used as circuits for sensors, alarms, and other types of monitoring.

Working Principle

The 2N689 is a high voltage SCR which can be used in high power applications. It is a three terminal device composed of N-type and P-type semiconductor materials. The three terminals are an anode, a cathode, and a gate.The working principle of an SCR is that the current flows from the anode to the cathode, when the gate is forward biased with a positive voltage. When a negative voltage is applied to the gate, the current flow to the anode is stopped and the SCR is turned off. This is why SCRs are commonly used in applications where the current needs to be controlled, such as in a power supply or motor control circuit.

Conclusion

The 2N689 is a highly reliable SCR which can be used in many applications and fields. It can be used in power distribution, process control, motor control, and other high power applications. The working principle of an SCR is that the current flows from the anode to the cathode when the gate is forward biased with a positive voltage. When a negative voltage is applied to the gate, the current flow to the anode is stopped and the SCR is turned off.

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