SMBJ85CAHE3/52 Circuit Protection

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The SMBJ85CAHE3/52 TVS diode belongs to the Littelfuse family of transient voltage suppressor products.

As the name suggests, TVS diodes are ideal for suppressing transients and their associated induced electrical noise. These varieties are specifically designed for highly reliable lightning protection, as they are capable of absorbing repetitive surge events up to the maximum peak pulse power of 130 watts.

Applications of SMBJ85CAHE3/52

The SMBJ85CAHE3/52 TVS diode provides robust protection against electric surges in power and data lines. The diode has a standby voltage rating of 8.5 volts and a peak pulse power rating of 130 watts. Some typical applications of the SMBJ85CAHE3/52 TVS diode include power supply and distribution systems, telecom line protection, data communication systems, instrumentation systems, and many others.

Working Principle

TVS diodes are designed to trigger a rapid, yet safe, flow of current in response to an over-voltage event. They are used to protect sensitive devices such as micro-controllers from electrical transients produced by other electrical sources in the environment. When an over-voltage event occurs in the circuit, the voltage exceeds the breakdown voltage of the TVS diode and the diode begins to conduct. This allows the over-voltage to be discharged to ground harmlessly, thus protecting the device and the system from damage.

The SMBJ85CAHE3/52 TVS diode also offers additional protection, such as fast response time and low dynamic resistance, which provides the added assurance that the diode will react quickly and efficiently in the event of a transient surge.

Conclusion

The SMBJ85CAHE3/52 is an ideal solution for providing reliable protection from electric surges in power and data lines, particularly in telecom and data communication systems. The diode is designed to trigger a rapid and safe flow of current in response to an over-voltage event, protecting sensitive devices from electrical transients. Its fast response time and low dynamic resistance also ensure that it will react quickly and efficiently in the event of a transient surge.

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