Current - Peak Pulse (10/1000µs):	7A (8/20µs)
Supplier Device Package:	DFN2510A-10
Package / Case:	10-XFDFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	0.17pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	--
Series:	--
Voltage - Clamping (Max) @ Ipp:	5V (Typ)
Voltage - Breakdown (Min):	5.5V
Voltage - Reverse Standoff (Typ):	3.3V (Max)
Bidirectional Channels:	4
Type:	Zener
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

PUSB3AB4Z Application Field and Working Principle

TVS - Diodes, also known as Transient Voltage Suppressors, are used to protect electrical and electronic systems from destructive voltage surges caused by electrostatic discharges (ESD), electro-magnetic interference (EMI) and lightning. The PUSB3AB4Z is an ESD robust, unidirectional TVS diode optimized for the protection of high speed interfaces such as USB 2.0, 3.0 and 3.1 connectors.The PUSB3AB4Z offers bidirectional ESD protection with a low on-state resistance of 0.3Ω. This makes it suitable for interfaces operating at up to 5 Gbps. It also has an ultra-low operating capacitance of only 0.5pF, which ensures that the signal integrity of the interface is maintained. The reverse leakage at rated operating voltage is lower than 0.1uA, providing a very low-power solution for system designers.The PUSB3AB4Z is offered in an ultra-small SOD-323 package, allowing it to be used in space-constrained applications. This package is also ESD resistant and UV resistant, giving the PUSB3AB4Z a longer operational life and making it ideal for environment-sensitive designs.TVS diodes are used in a wide range of applications, such as signal conditioning, power supply sequencing, circuit protection, ESD protection and transient voltage suppression. In the case of interface protection, the PUSB3AB4Z is an ideal choice for providing robust protection against overvoltage transients.The working principle of TVS diodes is based on the concept of tunneling. When a voltage surge is applied to a TVS diode, electrons and holes tunnel across a narrow potential barrier in the semiconuctor from the cathode to the anode. As a result, the diode acts like a low-resistance switch, quickly clamps the voltage and diverts the surge current away from the protected circuit.TVS diodes are typically rated in terms of Protection Level (PL), which is a measure of the maximum over-voltage threshold the diode can withstand. The PUSB3AB4Z has an ESD protection level of up to 10kV Human Body Model and a surge protection level of up to 15A peak current.The PUSB3AB4Z is a versatile and robust solution for ESD and surge protection in high speed interfaces. It offers excellent signal integrity performance, low power consumption and compact package size, making it ideal for an array of applications.

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