TT61N14KOFHPSA1 Discrete Semiconductor Products

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Thyristors, also known as silicon-controlled rectifiers (SCR), are a type of semiconductor device with multiple layers of alternating N-type and P-type materials. They are used to control a large amount of current or voltage with little electrical power, and are usually found in high-power applications such as motor-control circuits. The TT61N14KOFHPSA1 module is an SCR whose output current is limited to 14A. The TT61N14KOFHPSA1 has the following features and specifications.

Features and Specifications

• Max. Holding Current: 2 A
• Trigger Voltage: 1.2 - 2 V
• Off-state of Continuation Voltage: 900 V
• On-state of Continuous Voltage: 570 V
• Surge Current Capability (8x20µs): 6,000 A
• Maximum Allowable Junction Temperature: 175°C

Application Fields

The TT61N14KOFHPSA1 SCR module is developed for a variety of applications requiring high power and low losses. Due to its high surge current capability and relatively low cost, this module is a popular choice for controlling high-power circuits, such as those in motor-control systems and AC-DC converters. This SCR is also suitable for controlling medium-voltage loads, such as heating and lighting systems.

Working Principle

Like all SCR modules, the TT61N14KOFHPSA1 works on the principle of gate control. The gate is a two-electrode device with an anode (positive terminal) and a cathode (negative terminal). In the “on” state, the anode is at a positive potential and the cathode is at a negative potential. When a positive potential is applied to the gate, current flows from the anode to the cathode, resulting in the conduction of the SCR. When the gate potential falls below a certain threshold, the SCR turns off. The TT61N14KOFHPSA1 module is designed with a gate voltage of 1.2 – 2V, allowing it to be triggered and turn off with relatively low power.

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