MMBZ4696-HE3-18

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MMBZ4696-HE3-18 Application Field and Working Principle

The MMBZ4696-HE3-18 is a type of voltage regulator diode. It is used to maintain a constant output voltage in a power supply unit (PSU) or circuit. The device belongs to Diodes - Zener - Single, and is used in applications such as voltage sensing, voltage regulation, over-voltage protection, and ESD protection.

The MMBZ4696-HE3-18 is an epitaxial silicon planar type, with an operating temperature range of -65°C to +175°C. The device has an operating power dissipation of 600mW, with an Forward Voltage Drop (Vf) of 1V @ 10mA. It offers a Zener Voltage (Vz) of 18V, with a 5% tolerance, and a maximum reverse current (Izm) of 300mA. The device also offers a maximum surge current of 20A.

The key feature of the MMBZ4696-HE3-18 is its zener-voltage regulation, which prevents over-voltage conditions. This allows it to provide a stable and constant output voltage, even under electrical variations in the input voltage. It also has an internal temperature-compensated zener diode that limits the output voltage. This ensures that the output voltage remains within the safe range.

In terms of working principle, the MMBZ4696-HE3-18 generates a voltage between the anode and the cathode. When this voltage exceeds the breakdown voltage of the zener diode, the zener diode is activatedand the current flows through the device. The zener diode then regulates the voltage, maintaining the output voltage constant.

The applications of the MMBZ4696-HE3-18 include voltage sensing, voltage regulation, over-voltage protection, and ESD protection. It can be used in voltage sensors for AC or DC power supplies, as it can detect and buffer an over-voltage condition. It can also be used in AC-DC adapters, DC power supplies, and power amplifiers, as it can easily sustain voltage fluctuations.

The MMBZ4696-HE3-18 is a practical and affordable solution for a variety of applications. It offers reliable performance with a compact size, and is a cost-effective alternative to expensive voltage regulators or power supplies. With it, users can achieve stable and reliable voltage regulation, preventing their devices from experiencing over-voltage conditions.

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