SMBJ40CA-TR

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Transient voltage suppression diode (TVS) is a specialized diode designed to protect sensitive electronics from voltage and current surges. Currently, they are a critical component in many industrial and consumer electronic devices and are used for all types of surge protection. The SMBJ40CA-TR is a unidirectional TVS diode commonly used in applications that require surge protection from both ESD and lightning strikes.

Overview of TVS - Diodes

TVS diode is a type of diode specifically designed to protect electronic components from excessive voltage or current surges. It is a more advanced form of surge protection than a standard Zener diode and can handle more energy per pulse spike. TVS diodes are an invaluable tool in many industries because they can prevent damage to high-cost electronics from external power surges due to lightning strikes or power grid fluctuations. The SMBJ40CA-TR is a unidirectional diode manufactured by Littelfuse.

SMBJ40CA-TR Application Field

The SMBJ40CA-TR is widely used in applications that require surge protection from ESD as well as lightning strikes. It is ideal for use in portable electronic devices, LED lighting, automotive systems, AC/DC power supplies, and general-purpose consumer electronics. Specifically, the SMBJ40CA-TR is used to protect sensitive components from voltage surges up to 6.5A and 5kV, making it a great choice for surge protection.

SMBJ40CA-TR Working Principle

The SMBJ40CA-TR works on the same principle as any other TVS diode: it diverts any excess current or voltage away from the protected circuit so that it does not cause damage. It is a unidirectional diode, meaning that it only functions when current is flowing in one direction. When the voltage across the diode exceeds its breakdown voltage, it will begin to conduct current and divert it away from the protected circuit. As the voltage drops, the diode will stop conducting and will return to its normal state.

Conclusion

The SMBJ40CA-TR is a unidirectional TVS diode manufactured by Littelfuse. It is designed to protect sensitive electronics from voltage and current surges from ESD and lightning strikes. It can handle voltage surges up to 6.5A and 5kV and is widely used in many industries where sensitive electronics need to be protected from power surges. Its working principle is based on diverting any excess current or voltage away from the protected circuit so that it does not cause damage.

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