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ATV30C171J-HF Application Field and Working Principle

Transient voltage suppressors (TVS), also known as transil diodes, plays a significant role in protecting electrically sensitive equipment from transient voltage events. TVS devices protect equipment from damage by diverting destructive voltage away from circuits. ATV30C171J-HF is a type of TVS diodes which can protect high speed data line.

Application Field

ATV30C171J-HF is designed to provide overvoltage protection of ICs, low voltage supplies and data lines. It features low capacitance when dealing with high speed signals and can withstand high voltage events. Due to its good performance, ATV30C171J-HF is widely used in automotive, consumer electronics and telecommunication systems.

ATV30C171J-HF finds use in:

• Automotives: ATV30C171J-HF is used in electrical systems of automobiles such as passive engine start systems, boot modules, control units, navigation systems, interior lighting and exterior lighting.
• Industry: ATV30C171J-HF can be used in electric sub-counters, thermal motors and robot servo drives.
• Consumer electronics: ATV30C171J-HF is often used to protect consumer electronic products such as portable radios, TV sets, electronics games, notebook computers, calculators, CD players and mobile telephones.
• Telecommunication systems: ATV30C171J-HF protects DSL systems, telephone lines, computer networks and FTTX systems.

Working Principle

When there is an overvoltage on the power supply or data line, ATV30C171J-HF will conduct current for clamping. The working voltage of ATV30C171J-HF is usually between 10 to 30 volts. The maximum working peak current is 171 amps, the maximum working continuous current is 400 milliamps and the maximum working power dissipation is 1500 watts.

When an overvoltage appears on the circuit, the device will instantaneously conduct in the forward direction. The current and voltage ratings of the device are chosen to be much higher than the expected operating voltage or current. The clamping action of ATV30C171J-HF prevents voltage from exceeding the preset levels and any energy above this limit is diverted and discharged.

The combination of high working voltage and low clamping voltage makes ATV30C171J-HF suitable for protecting equipment from overvoltage requirements, such as inductive load transients, hot-plug surge and ESD. It has a low capacitance which is favorable for high speed signals.

Conclusion

ATV30C171J-HF is a type of TVS diodes which is usually used in automotive, consumer electronics and telecommunication systems. It offers protection from overvoltage events and can withstand high voltage spike with its high working voltage and current ratings. It also has a low capacitance which enables it to operate in high speed signal environments.

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