P1803UBRP

Series:	SIDACtor®
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Voltage - Breakover:	210V
Voltage - Off State:	150V
Voltage - On State:	8V
Current - Peak Pulse (8/20µs):	250A
Current - Peak Pulse (10/1000µs):	80A
Current - Hold (Ih):	150mA
Number of Elements:	3
Capacitance:	55pF, 85pF
Mounting Type:	Surface Mount
Package / Case:	6-SMD, Gull Wing

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P1803UBRP Technology

Thyristor TVS (Transient Voltage Suppressors) technology is recognized as the most reliable and cost effective over voltage protection technology for sensitive electronic devices. TVS exhibits a voltage-dependent, high-frequency, turn-on of the thyristor structure which allows the current to be diverted into a low impedance path, bypassing the electronic device under protection. P1803UBRP Technology from Palo Alto is a cutting-edge TVS that offers a superior level of protection than traditional diode-based protection.

P1803UBRP Application

P1803UBRP TVS technology is ideal for use in applications such as consumer electronics, industrial control systems and telecommunications equipment. The technology is suitable for use in environments exposed to high EMI (electromagnetic interference) or ESD (electrostatic discharge) events, which can damage delicate electronic components. By utilizing the excessive current generated by the EMI or ESD, this technology can divert it away from the device under protection and clamping the voltage accordingly due to its voltage dependant turn-on feature.

P1803UBRP Working Principle

The operating principles of P1803UBRP TVS is based on thyristor switching and avalanche breakdown. Avalanche breakdown is an effect that occurs when enough voltage is applied to reach a critical value point, which causes ionization to occur in the material (silicon in this case) resulting in a sudden increase of current. The thyristor structure includes two P-N junctions connected in series, meaning that the current is kept in check until exceeding the corresponding forward voltage of each junction in the thyristor structure. This combination of fast turn-on time and voltage clamping is the reason why P1803UBRP is such an effective protection device.

Conclusion

The P1803UBRP TVS Technology from Palo Alto is a cutting-edge overvoltage protection solution that offers superior protection compared to traditional diode-based solutions. It is specifically designed for use in applications exposed to high EMI and ESD events, making it ideal for consumer electronics, industrial control systems and telecommunications equipment. The technology utilizes the excessive current generated by the EMI or ESD events to divert it away from the device under protection while also clamping the voltage accordingly due to its voltage dependant turn-on feature.

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