MASMBJ120AE3 Circuit Protection

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TVS (Transient Voltage Suppressor) diodes, also known as Transient Voltage Surge Suppressors or Transil diodes, are widely used in electronic circuits to protect sensitive components from high level of voltage surges. The MASMBJ120AE3 is a popular transient voltage suppressor diode developed by Vishay Intertechnology. This device is a Uni-directional (TVS Diode) with excellent surge capability and low leakage current. It has a Repetitive Peak Reverse Voltage (Vvr) of 120V and a Peak Pulse Power of 600W (at 10/1000µs pulse width).

The MASMBJ120AE3’s primary application field includes consumer electronics, lightings, automobiles, power supplies, solar, UPS, and other industrial applications. In consumer electronics, the part is used to protect various components like resistors, capacitors, LEDs and other circuit elements from electric voltage spikes. Similarly, the MASMBJ120AE3 is also used in automobiles to help protect ignition system from voltage spikes, including can-bus systems, anti-lock braking systems, and power-door locking systems. In lightings, the part is used to protect circuit elements from unexpected voltage level, such as stop/start vehicles, and LED lighting for interior and exterior automotive applications.

In power supplies, the device protects against voltage spikes caused by lightning and power surges. In solar systems, the MASMBJ120AE3 helps protect sensitive components such as solar cells from overvoltage, overcurrent, and other unexpected voltage level conditions. In UPS application, the part helps safeguard against high voltage load surges, which can permanently damage or degrade UPS and other system components.

The MASMBJ120AE3 diode works by clamping unexpected voltage spikes and surges to an acceptable level by diverting the high-voltage pulses into a safely designed low impedance path to ground. This prevents the spike from damaging sensitive components and circuitry. However, the device still allow normal operation in the design. Its low clamping voltage and high clamping power make it an ideal candidate for a variety of applications.

The MASMBJ120AE3 has an operating temperature range from -65°C to 125°C. It also offers excellent surge capability with low leakage current and a maximum power dissipation of 1W. Additionally, the device is available in lead-free, Halogen-free, and RoHS compliant package.

Overall, the MASMBJ120AE3 is an excellent choice for a variety of applications where transient voltage protection is needed. It offers superior performance at low cost and is reliable in high voltage under extreme environmental conditions. With its outstanding surge capability and low leakage current, this device can be used for a wide range of applications in consumer electronics, automotive, lightings, power supplies, solar, UPS, and other industrial applications.

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