P850-G120-WH Circuit Protection

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Surge suppression ICs have become an increasingly important component in today\'s electronics world. This article will discuss the application field and working principle of P850-G120-WH, one such IC.

P850-G120-WH is designed to protect medium power electronics from transient over voltages. It is a highly reliable and efficient, dual-die SMD (surface mount device) packaged IC for ESD (electrostatic discharge) protection, lightning and surge protection. It is designed to limit the maximum voltage to a safe value, providing an extra level of protection for your electronic device. The P850-G120-WH surge suppression IC provides a reliable and efficient protection of electronic equipment against overvoltage transients that occur on the power supply lines.

The P850-G120-WH is a monolithic integrated circuit (IC) for surge suppression composed of two diodes in series and multiple protection layers. The two diodes are connected in series and in reverse polarity, so that one diode forward-bias claws and the other is reverse-biased by the clamping voltage, making it immune to peak voltage pulses. The components include two ceramic capacitors, and an inductor for extra noise suppression. The surge protection IC also has thermal protection to limit the power dissipation in the IC and protect it from damage due to prolonged overvoltage.

The P850-G120-WH surge suppression IC can be applied in a wide range of devices, including industrial controllers, automotive devices, power supplies, networking and telecommunications equipment, consumer electronics and computing equipment. Its main application is in the power supply line for AC/DC converters or DC/DC converters. The over-voltage clamping mechanism works to protect the device from transient overvoltages up to 450V peak voltage and 250V RMS voltage.

During normal operation, the P850-G120-WH is in a holding state. When a surge appears on the power supply lines, the two series diodes in the IC switch from their normal off-state to the on-state, causing the output voltage to be clamped at a predetermined level. This action prevents any damaging over voltage from reaching the device. The diodes turn off once the transient voltage has passed, returning the IC to the holding state.

The P850-G120-WH surge suppression IC\'s low capacitance and low leakage current make it ideal for high-speed, low-voltage designs. The IC also has superior ESD protection, providing reduction of the peak voltage during a discharge event. Its robust design makes it suitable for the most extreme applications, such as automotive, aerospace and military applications.

In conclusion, the P850-G120-WH surge suppression IC is a highly reliable and efficient IC for ESD, lightning and surge protection. It is designed to limit the maximum voltage to a safe value, providing an extra level of protection for electronic equipment. Its wide range of applications and robust design make it an ideal choice for a variety of high-voltage applications, such as automotive, aerospace and military applications.

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