SMBJ16CHE3/5B

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TVS (Transient Voltage Suppressor) diodes are an important component of many electrical circuits. They are widely used for overvoltage protection in various industrial, commercial and consumer applications. The SMBJ16CHE3/5B is one such device, and it has a wide range of applications, with a strong emphasis on automotive and avionics. In this article, we will take a look at the device’s application field and working principle.

The SMBJ16CHE3/5B device is designed to be used for overvoltage protection applications. It is a bidirectional voltage clamping device which works by limiting the amount of voltage present in the circuit in the event of a surge or an overload. The device is able to detect the presence of an high voltage event and then quickly clamp down the voltage to a much safer level. This ensures that the electrical components in the circuit are not damaged by the surge or overload.

The specific application field of the SMBJ16CHE3/5B is automotive and avionics. Automotive applications include engine control modules, engine control systems, airbag systems, throttle controls, active suspensions, body control systems, and more. Similarly, in avionics, the device can be used to protect various components such as navigation systems, cockpit control systems, and surveillance and communication systems. The device is also certified according to the AEC-Q200 standard, which makes it suitable for use in other applications where overvoltage protection is necessary.

The working principle of the SMBJ16CHE3/5B is based on the Zener diode principle. When the applied voltage exceeds a certain level, known as the breakdown voltage, the diode breaks down and the current is diverted away from the load to a lower voltage level. The breakdown voltage of the device is 16V for unidirectional modes and 8V for bidirectional modes. The device has a low clamping voltage of 11.5V and is able to handle very high power levels (up to 500W) without a significant rise in temperature. This makes it well-suited for overvoltage protection applications where the power levels can be quite high.

The device also has a low capacitance of 5pF, which makes it suitable for use in high speed applications. The device is offered in a variety of packages, including SMA, SOD882, and DO214AB. This makes it easy to integrate the device into any circuit, regardless of the form factor.

In summary, the SMBJ16CHE3/5B is a great device for overvoltage protection applications. It has a wide range of applications, especially in automotive and avionics, and it is also certified according to the AEC-Q200 standard. It has a low clamping voltage and a low capacitance, making it suitable for high speed applications. It is also offered in a variety of packages, making it easy to integrate into any circuit.

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