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TVS - Diodes

Transient Voltage Suppression (TVS) diodes are designed to protect electronic systems from high voltage transients generated by switching events, now commonly referred to as Electro Magnetic Interference (EMI). TVS diodes are offered in both unidirectional and bidirectional configurations and are used in a wide range of applications, from military to consumer electronics.

What is 3KP45?

3KP45 is a unidirectional TVS diode that has a standard voltage of 58V, an ESD protection voltage of up to 15KV and a peak surge power of up to 3KW. It is commonly used in I/O circuit protection and automotive power line applications.

3KP45 Application Field

3KP45 is most often used to protect automotive power lines from voltage transients induced by EMI. The 3KP45 can also be found in many communication, power technology, and medical applications. Examples include protecting the cathode bias circuit of LED lighting, the voice coil motor in earphones, and the electrodes in a biochemical analyzer.

3KP45 Working Principle

3KP45 utilizes a diode-based design to provide transient protection and has a wide operating voltage range. It has a unidirectional design, which means it will only conduct current in one direction, resulting in lower power consumption and a faster response time. When the voltage exceeds the specified threshold, 3KP45 will clamp the voltage at its peak rating and absorb the transient current. This ensures that the protected circuit remains at a safe voltage level and prevents damage from occurring.

Conclusion

The 3KP45 TVS diode is an excellent choice for automotive and consumer electronics applications that need protection from high voltage transients. It has a unidirectional design for fast response and low power consumption, a wide operating voltage range, and a high ESD protection rating.

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