T72H024844DN

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Thyristors - SCRs

A silicon-controlled rectifier (SCR) is a four-layer semiconductor device that is controlled by a gate signal to switch current on and off. The T72H024844DN is an SCR device developed by Littelfuse that is specifically designed for industrial applications, including protective relays, inrush current limiter and motor control hardware.

Application Field

The T72H024844DN SCR is a high-performance device ideally suited for a variety of settings. It is designed to operate within motor control, protective relay and inrush current limiter applications, allowing for ideal temperature compensation and operating efficiency.

Motor Control - The T72H024844DN features medium junction capacitance, low gate trigger current and low gate trigger voltage, making it an ideal candidate for medium-voltage, high-frequency motor control applications. The device is also capable of controlling load inductances up to 3 mH.

Protective Relay - The SCR is an ideal choice for protective relay applications, as it offers low leakage current, low triggering voltage and low triggering current. Its fast turn-on characteristics allow it to perform reliably in isolated systems, making it well suited for protecting large power supplies.

Inrush Current Limiter - The T72H024844DN is an excellent device for protecting power supplies from inrush current. It offers high peak blocking current, low leakage current and high clarity in the gate signal. No external components are required to activate the SCR, and its adjustable current triggering point make it an ideal choice for a wide variety of applications.

Working Principle

The T72H024844DN is a silicon-controlled rectifier (SCR) device composed of four layers: an anode, a cathode, and two layers of silicon. The SCR is turned on or off with a signal sent to its gate terminal. When the signal is applied, the gate terminal produces a voltage that forward biases the SCR to a conducting state, thus allowing current to flow from the anode to the cathode.

The T72H024844DN has adjustable trigger points and high accuracy. This means that the device can be adjusted to meet the requirements of specific applications. It also offers current limiter capability, which helps to limit inrush current and protect power supplies from overvoltage spikes. The device also features fast switching times and low gate drive requirements, making it an ideal choice for applications where high speed or efficiency is key.

With its adjustable trigger point and low gate drive requirements, the T72H024844DN offers great protection for power supplies from inrush current, overloads and overvoltage spikes. Its fast switching time, low leakage current and high blocking current ensure that it can perform reliably in a variety of applications.

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