BAS70-05-HE3-18 Discrete Semiconductor Products

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Diodes, rectifiers and arrays play important roles in electronic circuits as components for conducting and switching of power, as well as for controlling the flow of current. The BAS70-05-HE3-18 is an example of a diode array which has various applications in the field of electronics. This article explains the application field of the device and the working principle behind it.

The BAS70-05-HE3-18 is a dual voltage suppressor diode array, meaning that it is designed to protect electronic circuits from overvoltage. It is a surface-mount device, meaning that it is connected to a circuit by soldering it to the circuit board. The device also includes some internal diodes, which provide clamping of transients and reverse-diode protection.

The diode array is highly useful in consumer electronics, where it is used to protect circuits from shocks and spikes in voltage. This can be particularly important in areas with unstable power sources, where transient voltages can occur and damage the device. The diode array also provides protection from reverse polarity, which can occur when two conductors are connected to a device the wrong way. In automotive electronics, the diode array can be used to protect the ECU from overvoltage.

In terms of its working principle, the BAS70-05-HE3-18 is based on the concept of voltage clamping. This means that the device is designed to “clamp” voltages to a maximum level, preventing them from exceeding a certain threshold. The device does this by using an internal diode which is connected between the two supply lines. When the voltage between the two lines exceeds the device\'s voltage rating, the diode will start to conduct, dissipating the excess energy as heat.

The diode array also provides reverse-diode protection, meaning that it can protect the circuit from voltages applied in the wrong direction. This is achieved by connecting a diode in series with the two supply lines. When a negative voltage is applied, the diode conducts, thus protecting the circuit from the surge.

Overall, the BAS70-05-HE3-18 is a highly useful diode array which has many practical applications in the field of electronics. It provides overvoltage protection as well as reverse-diode protection, allowing it to protect circuits from transient voltages and wrong polarity voltages. The device is also highly useful in automotive applications, where it can be used to protect the ECU from overvoltage.

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