Z4KE140AHE3/73

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The Z4KE140AHE3/73 is a single Zener diode from NXP Semiconductor with a maximum power dissipation of 500 mW. It features a voltage of 140 V (max), a minimum breakdown voltage of 135 volts, an operating temperature range from -65°C to 175°C, and a maximum forward voltage of 1.1 volts. The Z4KE140AHE3/73 is designed to provide a constant voltage output over a wide range of temperature and operating conditions. Its primary applications include AC/DC line regulation, voltage clamping, suppression of voltage transients, pulse transformer, and power factor correction.

A Zener diode works by allowing current to pass from its cathode to its anode, at forward bias, and vice versa, at reverse bias. In the case of the Z4KE140AHE3/73, the anode is connected to the positive electrical supply, while the cathode is connected to the negative electrical supply. In this arrangement, when the voltage across the diode exceeds the breakdown voltage, a sufficient quantity of electrons are released from the positivity-charged anode and travel to the negatively-charged cathode, allowing current to flow through the diode in the reverse direction. This current is known as the Zener current and is typically very low and non-destructive.

The Z4KE140AHE3/73 is designed to regulate the voltage across its terminals by maintaining a constant voltage spreading the excess current away, through the diode. This reduces the potential risk of overload and ensures a steady voltage output. The breakdown voltage of the Z4KE140AHE3/73 is 135 volts and its maximum forward voltage is 1.1 volts. This makes it suitable for applications such as AC/DC line regulation, voltage clamping, suppression of voltage transients, pulse transformer, and power factor correction.

The Z4KE140AHE3/73 is extremely robust and reliable, thanks to its wide operating temperature range of -65°C to 175°C and its maximum power dissipation of 500 mW. This ensures that it is well-suited for extreme conditions and applications, including automotive and industrial as well as consumer electronics.

In conclusion, the Z4KE140AHE3/73 is an ideal choice for applications such as AC/DC line regulation, voltage clamping, suppression of voltage transients, pulse transformer, and power factor correction. It is robust and reliable, with a wide operating temperature range and a maximum power dissipation of 500 mW. Its breakdown voltage of 135 volts and its maximum forward voltage of 1.1 volts make it highly suitable for these applications.

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