SK025LTP

Current - On State (It (RMS)) (Max):	25A
Supplier Device Package:	TO-220AB-L
Package / Case:	TO-220-3 Isolated Tab
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Standard Recovery
Current - Non Rep. Surge 50, 60Hz (Itsm):	300A, 350A
Current - Off State (Max):	20µA
Current - Hold (Ih) (Max):	50mA
Series:	--
Current - On State (It (AV)) (Max):	16A
Voltage - On State (Vtm) (Max):	1.6V
Current - Gate Trigger (Igt) (Max):	35mA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Voltage - Off State:	1kV
Part Status:	Active
Packaging:	Tube

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Thyristors - SCRs

A Silicon-Controlled Rectifier (SCR) or Thyristor is a semiconductor device found in a wide range of electronic circuits. The SCR is a 4-layer semiconductor diode which behaves like a normal diode in most respects, but has the additional feature that when it is forward biased and a current spike is sent through it, it will switch to a low resistance state and stay in that state until the voltage across it is reversed. The device is often used to switch large amounts of power in industrial and commercial applications, such as motor controllers, overcharge protection systems, and electronic transformers.The SK025LTP is a specific type of SCR commonly used in power switching and industrial control applications. This device is a three-pin, Voltage Trigger type SCR rated for 600V and 15A. Its working principles are predicated upon the characteristics of P-type and N-type silicon, along with the operation of a gate circuit to control the current flow.The SK025LTP has a number of potential applications. It is commonly used as a motor speed control, as it can be used to reduce the voltage across the motor when operating on full load. The device is also used in the electronic control of transformers, or in the switch mode power supplies (SMPS) common in modern electronic gadgets. Its high breakdown voltage makes it suitable for use in power supply circuits, such as uninterruptible power supplies (UPS) used in data centers. Finally, the SCR has also found uses in various systems where its isolation properties make it a valuable component.The operation of the SK025LTP is relatively straightforward. The two internal layers of the SCR are connected by a layer of N-type material, and the gate electrode forms an S-shaped barrier between the two layers. When the device is in its ‘Off’ state, no current is allowed to flow through it. To activate the device, a voltage spike greater than the device’s forward triggering voltage is applied to the gate electrode. This spike causes a small avalanche current to begin flowing through the device, breaking down the resistance across the P-N junction. The device then turns ‘On’, allowing current to flow through it in both directions, until the voltage across the device is reversed and the device returns back to the ‘Off’ state.To ensure that the device remains in the ‘On’ state while operating in high power applications, the device should be connected to a control circuit which monitors the voltage across the device and sends additional current to the gate if needed. This ensures that the device remains activated, even when there is a drop in the voltage across it.The SK025LTP is one of the most versatile thyristors in use today, and its applications cover a wide range of industrial and commercial applications. Its ability to switch large amounts of power quickly and efficiently make it an ideal choice for applications such as motor controllers, power supplies, and power switching. Its high voltage and current ratings also make it suitable for use in many other applications, including various data center applications.

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