Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Base Part Number:	USB50805
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	3pF @ 1MHz
Applications:	Ethernet
Power Line Protection:	No
Power - Peak Pulse:	500W
Series:	--
Voltage - Clamping (Max) @ Ipp:	13V
Voltage - Breakdown (Min):	6V
Voltage - Reverse Standoff (Typ):	5V
Bidirectional Channels:	2
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS Diodes

TVS diodes, also known as transient voltage suppressors, are solid-state semiconductor devices that are designed to protect electrical circuits from high voltage transients. They are used to protect circuits from electrostatic discharge, overvoltage transients, and other potentially destructive events. TVS diodes offer superior protection to other electromechanical devices such as MOVs, fuses and surge protectors, as they are able to respond to events almost instantaneously, allowing them to provide more robust protection and greater flexibility.

USB50805C-AE3/TR13

The USB50805C-AE3/TR13 is a high-performance TVS diode with a low clamping voltage for overvoltage and electrostatic discharge protection. It is designed to protect differential signal lines of up to 5V and features a low dynamic resistance for improved performance. The diode is capable of withstanding up to 8kV Human Body Model ESD, 800W peak pulse power, 2.5A of unidirectional continuous current, and 5A of bidirectional continuous current. It also comes with a wide operating temperature range of -65°C to +125°C, making it suitable for use in automotive and industrial applications.

Application Field

The USB50805C-AE3/TR13 is particularly well-suited for use in automotive and industrial applications thanks to its wide operating temperature range and robust protection capabilities. It is capable of protecting automotive power, communication and ECU lines, as well as high-speed data lines in industrial control systems and other applications. It can also be used to protect audio, video, and data processing circuits from overvoltage transients.

Working Principle

TVS diodes work by providing an alternate path for current flow in the event of an overvoltage transient. When the voltage across the diode exceeds the breakdown voltage, the diode will begin to conduct, allowing current to flow through its body and limiting the voltage across the protected device. This limits the amount of current that can flow through the protected device and prevents any damage as a result of the surge. TVS diodes are also commonly used in electrostatic discharge (ESD) protection circuits. When affected by an electrostatic discharge event, the diode begins to conduct, allowing the excess charge to be removed from the circuit. The diode then attempts to restore the voltage to its normal level, thereby preventing any damage from occurring.

Conclusion

The USB50805C-AE3/TR13 is a high performance TVS diode designed to protect differential signal lines of up to 5V from overvoltage transients and electrostatic discharge. It is particularly well-suited for use in automotive and industrial applications, and features a low dynamic resistance for improved performance. When affected by a surge, the diode begins to conduct, allowing current to flow through its body and limiting the voltage across the protected device. Similarly, when affected by an ESD event, the diode begins to conduct, allowing the excess charge to be removed from the circuit.

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