SA48CA B0G Circuit Protection

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TVS - Diodes

Transient Voltage Suppressor (TVS) Diodes are semiconductor electronic components used to protect circuits from transient voltage. TVS are available in various types and designs including single chip, branch array, multiple chip, and high temperature models. The SA48CA B0G is a branch array TVS designed to protect automotive electronics from voltage transients. This article introduces the application field and working principle of the SA48CA B0G.

Applications of SA48CA B0G

The SA48CA B0G is typically used for general automotive applications, such as for automotive underhood electronics and other equipment that generates a lot of transient voltage. It is designed to protect automotive electronics from voltage transients, as well as other electrical and electronic systems where a fast response time is required. It is also commonly used in automotive alternators, starters, and other electronic components.

Working Principle of SA48CA B0G

The SA48CA B0G is a branch array TVS that utilizes a special construction, combining two series connected unidirectional devices. This special structure enables this diode to absorb in each branch up to 16 A peak current. It is capable of absorbing up to 16 A peak current in each branch, and up to 48 A peak current in total.

When this TVS diode is exposed to transient voltages, it works to quickly suppress the voltage to within a safe range. The TVS is designed to absorb excess and transient voltage by diverting it to ground without damaging other components. This is done by conducting current during the time of voltage overshoot.

The SA48CA B0G has a wide operating voltage range of 14V to 60V, and can dissipate energy up to 900 watts. It also has a low reverse leakage of 0.1uA, low capacitance of 0.3pF and a very fast response time of 5ns. It is rated for storage temperature range of -55°C to +125°C, and has a single-chip overvoltage protection.

Conclusion

The SA48CA B0G is a widely used branch array TVS designed for general automotive applications. Its special construction enables it to absorb up to 16 A peak current in each branch and up to 48 A peak current in total. The TVS works to quickly suppress voltage to within a safe range by diverting it to ground without damaging other components. Its wide operating voltage range, low leakage current, and fast response time make the SA48CA B0G a popular choice for automotive underhood electronics and other applications.

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