BZX84B10-HE3-18

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The BZX84B10-HE3-18 is a single Zener diode, typically used in electrical circuits to regulate voltage levels. The device is specifically designed to provide a consistent amount of voltage to other components connected to it, notwithstanding any fluctuating input. It is also known as a “shunt regulator”, owing to the way in which it is used in an electrical circuit.

The device consists of a single Zener diode, usually rated between 10 to 18 volts, and hence is categorised as a BZX84B10-HE3-18. The diode is embedded in a single-cavity TO-220 encapsulated housing, making it more durable than other types of packaging. The device operates in three distinct modes—forward, reverse-recovery, and Zener breakdown—for a more comprehensive protection and regulation of voltage levels.

In its forward mode of operation, the diode acts as a conductor, allowing electric current to move freely between the diode terminals. At its maximum continuous forward current rating, the diode can handle up to 1.0A while its maximum forward voltage drop is 40V. In addition, the device is able to withstand a surge current of up to 2.5A during periods of transient overvoltage.

When in its reverse-recovery mode, the device turns out to be a rectifier, obstructing any current that is flowing in the opposite direction. This helps prevent any undesirable power from flowing back through the circuit. The diode’s reverse-current rating ranges from 10μA (at 25°C) to 100μA (at 125°C).

The most important operating mode of the BZX84B10-HE3-18 is its Zener breakdown. This is the mode in which the diode ceases to act as a barrier to the electric current and allows the voltage difference between anode-cathode to equal the breakdown voltage. This is a key feature of the device as its breakdown voltage is the standard voltage level to which it regulates the voltage further down the circuit. The breakdown voltage of the BZX84B10-HE3-18 is usually between 10V and 18V.

The BZX84B10-HE3-18 is ideal for applications that require the regulation of voltage levels within a range of 10V to 18V. This device may be used as a voltage reference in automotive circuits and/or as a shunt regulator to protect any related components from excessive overvoltage. Apart from this, it can also be used in power supplies, voltage regulators, and other related circuits for providing precisely regulated voltage levels.

In short, the BZX84B10-HE3-18 is a versatile device, ideal for applications that require the maintenance of voltage levels within a specific range. It is efficient in both forward and reverse-recovery modes, while its Zener breakdown mode allows it to properly regulate any further flows of current down the circuit. Through these functions, the device is able to protect the stability of any circuit in which it is employed.

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