5KASMC22AHM3_A/I Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are a class of devices designed to protect voltage sensitive components from transient voltage and overvoltage events. The 5KASMC22AHM3_A/I is a silicon unidirectional TVS diode designed for protection from ESD (Electro-Static Discharge) and other transient overvoltage events from 150W to 2kW. It is usually used for malfunction or damage prevention of I/O terminals and other components.

The working principle of the 5KASMC22AHM3_A/I can be explained in the following sections:

Structure and Design

The 5KASMC22AHM3_A/I is a rectangular, all-silicon, unidirectional TVS diode, which combines ultra high surge capability with low capacitance and reasonable pricing. The device is designed to clamp transient voltages that may occur from 150W to 2kW. The leakage current of the 5KASMC22AHM3_A/I is very low which ensures the normal operation of the protecting device. Additionally, the device has low inductance and efficient thermal performance.

Operation

During normal operation, the 5KASMC22AHM3_A/I behaves like an open switch. Any surge protection devices (SPDs) connected to these diodes exhibit no current and therefore do not cause any electrical or equipment malfunction. The clamping current that these diodes can safely sustain varies depending on the device’s peak pulse current rating. When a surge or transient voltage event occurs, e.g. caused by lightning, electro-static discharge or other events, these diodes start to conduct. This causes the energy or voltage of the surge to be dissipated through the diode, rather than through other components which could be damaged.

Features and Benefits

The 5KASMC22AHM3_A/I offers a number of features and benefits, such as:

• Low leakage current: Less than 1 mA
• Low inductance: Less than 1 nH
• High surge current capability: up to 2kW
• Low capacitance: Less than 0.7 pF
• High breakdown voltage: up to 10V
• Excellent thermal performance
• Cost-effective

Applications

The 5KASMC22AHM3_A/I can be used for a variety of applications, such as:

• Personal computers
• External hard drives
• High-end audio and home theater systems
• Automotive systems
• Telecommunications and datacom equipment
• Industrial controls
• Switching power supplies
• LED lighting systems

In summary, the 5KASMC22AHM3_A/I is a unidirectional TVS diode designed for protection from ESD and other transient overvoltage events. The device offers high surge capability, low leakage current, low inductance and cost-effective performance, making it suitable for many applications.

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