MASMBJ2K4.5

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TVS diode is a kind of transient voltage suppressor diode. It is used to protect electrical circuits from over-voltage. The MASMBJ2K4.5 is a special type of TVS Diode used in electronic products. It is widely used in consumer electronics, automobile, industrial control, and military applications.

The MASMBJ2K4.5 consists of four PN junction diodes connected in a series. The diodes form two antiparallel paths through which the surge current flows. It provides a high surge capability of 10kA (8/20μs) peak pulse current, making it suitable for protecting a wide range of electronic products.

The main application of MASMBJ2K4.5 is to protect against transient over-voltage conditions. It is used to protect circuits from transient voltage spikes caused by lightning, power line surges, and electrical induction. It also provides protection against high-frequency interference such as noise, smearing, and crosstalk caused by electromagnetic compatibility (EMC). The device works by clamping the high-voltage pulse to a safe voltage level before it reaches the protected circuit.

The working principle of MASMBJ2K4.5 is simple yet effective. When a high voltage is applied to the device, the PN junction diodes start to conduct current and the voltage across them increases. As the voltage across the diode further increases, the current also increases and the voltage begins to plateau. This is called avalanche breakdown. At this point, the voltage across the device is clamped to a safe level and the current is diverted, thus protecting the circuit.

In addition to protection from transient over-voltage conditions, the MASMBJ2K4.5 can also provide protection from electrostatic discharge (ESD). It has an ESD protection rating of 15kV (Human Body Model). This ensures that the device can withstand high voltages caused by electrostatic discharge and protect the circuit from damage.

The MASMBJ2K4.5 is a highly reliable and robust TVS diode. It is widely used to protect a wide range of electronic products, from consumer devices to industrial applications and military equipment. Its high surge capability, ESD protection, and reliable operation makes it an ideal choice for many application fields.

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