MSMLG7.5CAE3

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The MSMLG7.5CAE3, categorised in TVS Diodes (Transient Voltage Suppressor Diode), is a device used to protect circuit boards from possible damages from transients on power supply lines. This device provides fast and reliable passive protection of sensitive circuits against voltage transients generated by lightning, switching load operations and other external interferences. The MSMLG7.5CAE3 is designed for unidirectional and bidirectional protection from high-voltage transients.

The most salient feature of the MSMLG7.5CAE3 is its low leakage current (1μA typical at 25°C) and high- Clare® (Essentially a capacitor) junction capacitance rating. This makes it particularly useful for protection against power surges and other transient voltage events. The diode will clamp the voltage to a safe level when a voltage transient above its clamping voltage (7.5V) is applied.

The MSMLG7.5CAE3 can be used in a variety of applications to protect sensitive electronic components. These include protection of input/output circuits in data, communication, audio and video systems, protection of digital components from voltage transients caused by lightning, board-level protection against voltage transients, EMI, and ESD protection of integrated circuits. The device is well-suited to any application in which a high degree of protection is needed from voltage transients.

The MSMLG7.5CAE3 is a dual-gate, zener-diode-based TVS-diode specifically designed for transient voltage protection applications. The device combines a zener diode and two field plate gates connected in series. The two opposite-polarity field plates act as capacitors, which act together to significantly enhance the reverse break-over region of the diode. The two gates of the MSMLG7.5CAE3 also work together to lower the transient response time. The device has a nominal stand-off voltage of 7.5V and can handle transients up to 42V, making it suitable for many high-voltage applications.

In operation, the MSMLG7.5CAE3 works in two stages. In the first stage, the diode’s zener region prevents undesirable voltage from reaching the device’s “on” area. During this period, the gate capacitance is charged up. In the second stage, the second gate is released, and the device turns to a very low impedance state and quickly clamps the voltage to the breakdown voltage. The gate capacitance then quickly discharges, restoring the diode to its original shunting state.

The MSMLG7.5CAE3 is a versatile and reliable device designed to protect a variety of sensitive components from transients. Its operating parameters make it suitable for a wide range of applications, including ESD, EMI and lightning protection. The device also offers low leakage current and high Clare ® junction capacitance, making it an ideal choice for applications requiring rapid response to transients.

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