SA150CA-E3/54 Circuit Protection

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TVS-Diodes are an essential component for any high-voltage application due to their ability to safely and quickly direct, absorb, or clamp a transient voltage. The SA150CA-E3/54 is a unidirectional Transient Voltage Suppression (TVS) diode designed specifically for protection against a lightning strike or electrical surge. This application field and working principle will be discussed in the following paragraphs.

Application Field

The SA150CA-E3/54 is an appropriate choice for widespread applications across various industries, including automotive, military, aerospace and consumer electronics. Automotive manufacturers rely on these components to provide protection and prevention against shorts on circuits. Similarly, military and aerospace applications often need reliable components to protect against electrical surges, due to the unpredictable nature of their environments. Last but not least, consumer electronics, including smartphones and computers, especially need protection against electrical spikes.

The SA150CA-E3/54 is a particularly efficient and reliable choice for protecting personal electronic devices because it provides peak pulse power of 500W and a Cathode-Anode breakdown voltage of 72-60.3V.

Working Principle

TVS-Diodes, with the SA150CA-E3/54 as one example, create a fast response in an electronic circuit whenever voltage increases to unsafe levels. The SA150CA-E3/54’s maximum leakage current of 5µA (at 5V) enables it to quickly respond to fluctuating voltages. The immediate response prevents damage to the connected components and allows for protection against further surges.

In addition to providing protection from electrical surges, this diode also has temperature coefficient of -0.062V/°C, which increases the response time even further. This ensures that the diode maintains its effectiveness regardless of fluctuations in the temperature of the environment.

The SA150CA-E3/54 withstanding current of 1.5A ensures continuous protection against sustained high voltage and current. This sustained protection helps to protect circuits from being damaged and prevents against further spikes.

Conclusion

TVS-Diodes, with the SA150CA-E3/54 as an example, are an essential component for any high-voltage application. Its broad application field, low leakage current, high surge current capability, and temperature coefficient make it an ideal choice for protecting consumer electronics, automotive, military, and aerospace applications. Additionally, its peak pulse power of 500W and Cathode-Anode breakdown voltage of 72-60.3V ensure reliable and response protection against electrical surges.

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