MALCE150A

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TVS - Diodes

TVS (Transient Voltage Suppressor) diodes are voltage-dependent devices, designed to protect sensitive electronics from overvoltage transients, often caused by ESD, lightning and other electrical surges. TVS diodes have different applications, depending on the particular properties of the device. The MALCE150A is one such TVS device with a host of features and applications.

MALCE150A Features

The MALCE150A is a unidirectional, low-capacitance TVS diode, specifically designed for application in electronic circuits. It is well-suited for protection of differential data lines and sensitive RF circuits against common-mode transients, ESD, and other voltage surges. This TVS diode is characterized by a low clamping voltage of 16.0 V and a fast response time (less than 5 ns), and offers excellent protection for high-speed data transmission applications. Additionally, the MALCE150A comes in the ultra-small form factor of 0402 (1.00 W × 0.50 L mm).

MALCE150A Working Principle

Although the MALCE150A is in the form of a diode, it works differently from a conventional rectifying diode. During an over-voltage transient, the response time of the MALCE150A is much faster than that of the rectifying diode. As soon as the over-voltage exceeds the device’s Working Voltage (WV) rating, it switches on, allowing the current to flow, thereby preventing the circuit from experiencing the full over-voltage. It also maintains a low capacitance, allowing the line protection to work without any interference with the signal itself.

MALCE150A Application

The MALCE150A is popularly used to protect low-voltage systems such as USB ports, LAN ports, and other I/O systems from over-voltage transients. It can also be used to protect consumer electronics, automotive systems, and communications systems from electrical surges. Due to its low capacitance, it is ideal to use in high-speed data transmission systems such as high speed LANs (Ethernet) and Fibre Channel links as well as PDS buses. It is also used in both modem-coupled and discrete power systems, in order to provide surge immunity to the electronic components connected.

Conclusion

The MALCE150A is an advanced TVS diode, which is ideal for high-speed data transmission systems. It offers excellent protection in IT systems, consumer electronics, automotive systems, and communications systems. It is also capable of withstanding ESD and other electrical surges. Furthermore, it has an excellent response time and is also available in a small form factor.

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