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TVS - Diodes: SMAJ16A-13-F Application Field and Working Principle

Transient voltage suppressor (TVS)- diodes also known as transzorbs are electrical components designed to suppress voltage spikes. They are widely used in automobiles, consumer electronics, telecommunication and military products. The SMAJ16A-13-F is a common type of TVS-diode used in a variety of applications. This article will discuss the application field and working principle of the SMAJ16A-13-F.

Application Field of SMAJ16A-13-F

The SMAJ16A-13-F is a 3 pin unidirectional transient voltage suppressor device. The device is commonly used in automotive powertrain electronic control unit (ECU) applications and is AEC-Q101 qualified. It is designed to protect against voltage transients in input/output lines. Its maximum clamping voltage is 9.3 V which is suitable for applications running on a wide input voltage range.

The device is also used in consumer electronic applications, such as cellular phones, digital cameras, portable music players, and PDAs. It is also used in industrial/telecommunication applications, such as data communication links, proprietary systems, and power line communications. The SMAJ16A-13-F can also be used in military applications, such as missile guidance systems and defense communication networks.

Working Principle of SMAJ16A-13-F

The working principle of a TVS-diode is relatively simple. It is basically a diode that is designed to clamp any voltages above a certain threshold. When a voltage transient occurs, the device turns on and begins to conduct current through its body, thus limiting the peak voltage to a safe level. The device has a very low on-state impedance, so it can handle large surges in power and dissipate them quickly and efficiently.

The SMAJ16A-13-F is a unidirectional device, which means it only protects against transients in a single direction. It also has a stand-off voltage of about 13V, which is the voltage at which the device starts clamping. It has a high surge capability of up to 57.6A, and can clamp down voltages with a maximum peak current of 130A.

The SMAJ16A-13-F is designed to provide system-level protection. By limiting the voltage and dissipating the transient energy, it protects the delicate electronics of a circuit from consequential damage.

Conclusion

The SMAJ16A-13-F is an AEC-Q101 qualified 3 pin, unidirectional transient voltage suppressor device. It is designed to provide high-level protection against voltage transients in a wide variety of applications, ranging from automotive to industrial, and military. The device has a stand-off voltage of about 13V and can handle high surge power up to 57.6A. When a voltage transient occurs, the device quickly conducts current through its body, thus limiting the peak voltage and dissipating the energy safely.

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