CPDH5-5V0U

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TVS - Diodes are a type of protection device used to protect circuits and systems from transients, also known as surges, and are commonly used to protect sensitive electronic equipment where damage or disruption of the system could be catastrophic. The CPDH5-5V0U is one such device, and the following will discuss its application field and working principle.

The CPDH5-5V0U is a high reliability, low capacitance TVS diode array, designed for ESD protection in mobile applications ranging from consumer electronics to automotive systems. The device features an ultra-low on-state capacitance of 0.75pF, which makes it suitable for use in high volume mobile applications. The device\'s Rev. A8G ceramic package also provides heat dissipation to ensure optimal performance over the lifetime of the device.

In applications, the CPDH5-5V0U works as a high-speed, low-capacitance bidirectional clamp for protection against ESD transients. The device is bidirectional, meaning it can protect against transients entering and exiting the circuit, and its low capacitance of 0.75pF is tailored for high-speed data line protection. The device\'s high surge current of 5kA (tP=8/20μs) provides reliable protection against ESD transients, and its low clamping voltage ensures minimal disruption to the system when triggered.

Internally, the CPDH5-5V0U is composed of a three-terminal bidirectional ESD protection network, with an ESD protection diode array connected between the two input lines and a TVS diode connecting the two lines to ground. In its normal operating state, the device is an open circuit. When an ESD event occurs, the ESD diode array becomes forward biased and starts to conduct current, allowing the current to be safely dissipated to ground through the TVS diode, while the attached circuits remain unharmed.

In addition to protection against ESD transients, the CPDH5-5V0U also provides protection against EFT (electrical fast transients). The device features a high power dissipation capability of over 4 watts, providing rapid protection against EFTs, and its ceramic package ensures the device stays well below the surface temperature limit of 85°C, helping to ensure optimal performance in harsh operating conditions.

The CPDH5-5V0U is an ideal solution for ESD protection in high-speed mobile applications ranging from consumer electronics to automotive systems. Its low capacitance of 0.75pF is tailored for high-speed data line protection, and its high surge current of 5kA provides reliable protection against ESD and EFT transients. Additionally, its ceramic package ensures the device remains within surface temperature limits regardless of harsh operating conditions.

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