SMP17-M3/85A

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TVS diodes, or transient voltage suppressors, are multi-purpose electronic components that protect other devices, such as microcontrollers and integrated circuits, from being over-voltage. The SMP17-M3/85A is a type of TVS diode, and it is widely used in the consumer electronics, telecom, and industrial automation sectors. In this article, we will explore the application field and working principle of the SMP17-M3/85A.

Overview of the SMP17-M3/85A

The SMP17-M3/85A is a TVS diode designed for high-speed data line and power line protection. It is designed to protect sensitive electronics from harmful electrical over-voltage conditions, such as those caused by ESD (electrostatic discharge) or lightning strikes. It is available in a variety of packages, including SMD (surface mount device), TO-220, and DO-41.

The SMP17-M3/85A features a very low clamping voltage (7.0V at 1.5A) and a low capacitance (20pF typical). It also has a high surge capability (8.0A) and a low leakage current (1μA max). Additionally, it offers an operating temperature range of -30°C to +85°C, which makes it suitable for a wide range of applications.

Application Field

The SMP17-M3/85A is ideal for protecting sensitive circuits from over-voltage, over-current, and ESD. Its low clamping voltage and low capacitance make it suitable for high-speed data line protection applications. Additionally, it is widely used for power line protection against spikes, surges, and lightning strikes. It is also suitable for automotive, telecom, and industrial automation applications.

The SMP17-M3/85A is used in a variety of consumer electronics, such as smartphones, digital cameras, and gaming consoles. It is also used in industrial and automotive applications, such as solenoid and power steering systems, and in telecom applications, such as remote access servers and base station protection.

Working Principle

The SMP17-M3/85A is a voltage-dependent diode, meaning it only begins to conduct current when the voltage across the diode reaches a certain threshold. When an over-voltage condition occurs, the diode begins to conduct current and the voltage across the diode is clamped to a safe level. This prevents the over-voltage condition from damaging the devices that are connected to the diode.

The SMP17-M3/85A also has a high surge capability, meaning it can handle a large amount of current for a short period of time. This allows the diode to protect devices from voltage spikes and surges without being damaged or degrading its performance.

Conclusion

The SMP17-M3/85A is a multi-purpose TVS diode that is designed to protect sensitive electronics from over-voltage, over-current, and ESD conditions. Its low clamping voltage and low capacitance make it suitable for high-speed data line protection applications, while its high surge capability makes it suitable for power line protection against spikes, surges, and lightning strikes. It is widely used in consumer electronics, telecom, and industrial automation applications.

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