ZMM5243B-7 Discrete Semiconductor Products

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The ZMM5243B-7 Diode is a special type of a Zener diode, designed to provide a low forward voltage drop (VF). The diode is usually used to create a DC current in order to maintain a constant voltage across a circuit. This diode is particularly useful for high power applications, as the current losses are minimal.

The ZMM5243B-7 Diode is a high reliability (Hi-Rel) Zener diode, meaning it is designed for long-lasting and reliable performance. The diode is designed with an intrinsic stability, making it suitable for use in harsh conditions and difficult applications. The ZMM5243B-7 is manufactured in a planar epitaxial wafer, providing excellent temperature stability and tolerance.

The operating temperature of the diode is limited to the range 0°C to +150°C. It is also capable of withstanding surge currents up to 5A. The maximum reverse voltage (VR) of the ZMM5243B-7 is 40V. It typically has a breakdown voltage of 28V and a ‘knee-point’ voltage of 20V. The ZMM5243B-7 has an Impulse Life test rating of at least 2.5A/uS.

The ZMM5243B-7 diode is typically used in high voltage applications, such as power supplies, where a steady DC current is required. It can also be used as a surge protection device, as it can handle surge currents with minimal damage. The low forward voltage drop of the diode makes it ideal for use in appliance circuits and automotive applications, as it reduces the amount of power wasted in the circuit.

The working principle of the ZMM5243B-7 is based on the principle of a Zener diode. When a reverse voltage (VR) is applied to the diode, the electric field formed at the junction of p-n conductors deflects free electrons back and forth across the junction, generating a voltage valley, or Zener Voltage. Excessive current is diverted away from the rest of the circuit, ensuring no damage is done. This allows the diode to act as a voltage defier and stabilize the DC voltage of the circuit, creating a constant voltage flow.

In summary, the ZMM5243B-7 is a high stability, low voltage drop Zener diode, suitable for use in high voltage applications. It is capable of withstanding surge current up to 5A and has a maximum reverse voltage of 40V. The working principle of the diode is based on the Zener effect, allowing it to regulate the DC current and create a constant voltage flow.

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