TV02W121B-G

Voltage - Clamping (Max) @ Ipp:	193V
Supplier Device Package:	SOD-123
Package / Case:	SOD-123
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	200W
Current - Peak Pulse (10/1000µs):	1.04A
Series:	--
Voltage - Breakdown (Min):	133V
Voltage - Reverse Standoff (Typ):	120V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

TVS (Transient Voltage Suppresser) Diodes are widely used in fields such as television, automotive, communications systems and computations to help protect components from ESD (electrostatic discharge). The TV02W121B-G is an example of a bi-directional TVS Diode with symmetrical unidirectional breakdown voltage characteristics. This TVS Diode is typically used for propagation delay purposes as well as for suppressing surges and is capable of dissipating up to 800W of power.

Application Field of the TV02W121B-G

The TV02W121B-G is commonly used in television displays where its low capacitance allows it to quickly detect and react to any abrupt voltage changes. It is also often used in communications systems, automotive systems and microprocessor applications to provide protection against voltage/current spikes as a result of ESD.In addition, the TV02W121B-Gis typically used as a clamp in power-supply circuits to protect devices from voltage or current surges. It can also be used in electronic equipment which requires extra protection from ESD or lightning transients due to its robust design and low capacitance. Many times the TV02W121B-G can provide a better protection than other traditional protection techniques such as fuses, MOVs (Metal-Oxide Varistors).

Working Principle of the TV02W121B-G

The TV02W121B-G is a bi-directional TVS Diode with symmetrical unidirectional characteristics. It consists of two periods of silicon p-n junctions which are connected in series in opposite directions. When an electrostatic discharge, voltage, or current surge occurs, the TV02W121B-G will conduct the surge and limit the voltage to a safe, predefined level. The voltage is then discharged to ground through the TV02w121B-G.When a voltage exceeds the breakdown voltage of the TV02W121B-G, it turns on and clamps the voltage at its breakdown voltage. The voltage is discharged through the TV02W121B-G and is safely dissipated as heat. When the surge is over, the TV02w121B-G will automatically turn off and restore proper circuit operation.The TV02W121B-G is designed to protect against surges of up to 800W meaning that it will not be overwhelmed by voltage or current spikes of up to 800W. It is also designed with a capacitance of 0.25pF, ensuring that it can detect and react quickly to sudden voltage changes, thus providing optimal protection.

Conclusion

The TV02W121B-G is an effective and reliable bi-directional TVS Diode with symmetrical unidirectional breakdown voltage characteristics. It can quickly detect and react to any abrupt voltage changes as well as provide protection against voltage/current spikes that are the result of ESD. The TV02W121B-G is commonly used in television displays, automotive systems, communications systems and microprocessor applications and is capable of dissipating up to 800W of power.

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