1N5378BE3/TR12

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• Diodes - Zener - Single
  • 1N5378BE3/TR12 application field and working principle
    • Applications

      The 1N5378BE3/TR12 is a 12V dual zener diode that is widely used in applications requiring accurate and stable low voltage power supply voltage regulation. It can also be used to form a voltage reference circuit. Additionally, hot-swap controllers and battery-powered circuits are two other typical scenarios where this component finds application.

    • Design Features

      The innovative design of the 1N5378BE3/TR12 offers several advantages when compared to other devices found in the same class. Its dual dynamic resistive element offers improved thermal stability and overall reliability while keeping minimal temperature dependence. Furthermore, this component is compliant with the RoHS standard and features a surge overload rating of 10A peak with a maximum power dissipation of 450mW.

    • Working Principle

      In the simplest of terms, a zener diode operates by allowing current to flow in the reverse biased direction once a certain voltage differential is exceeded (zener voltage). This zener voltage is typically specified in the device datasheet and it may also be referred to as a "clamp voltage". As current continues to flow, the zener diode dissipates energy and this works to regulate the voltage applied to the device. This is the main concept behind the working principle of a zener diode.

      In the case of the 1N5378BE3/TR12, two separate dynamic resistive elements are used to control the current flow. The first element acts as a dynamic resistance which is more stable and consistent than traditional series-regulated voltage sources. The second element serves as a current limiting mechanism and is designed to protect the device from overload conditions.

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