TZMB7V5-GS18

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Diodes are one of the most basic and important components in electrical engineering. Zener diodes, in particular, are devices that allow voltage to pass in one direction and block it in the other direction, but when a certain threshold voltage is exceeded, the reverse current from the anode to the cathode is allowed. The TZMB7V5-GS18 is an example of a Zener diode with a tolerance rating of +-5%.

The TZMB7V5-GS18 has a dual operating temperature range of -65°C to +175°C and a wide variety of application fields. These include high gain switching, suppression of interference signals in radio frequency applications, and precise control of reverse breakdown voltages in circuits. This diode also has power handling capabilities up to 500mW.

The general working principle of the TZMB7V5-GS18 Zener diode is based on the semiconductor effects of a PN junction. When the applied voltage is below the reverse breakdown voltage, reverse current is blocked. However, when the applied voltage exceeds this level, the PN junction will exhibit reverse conduction and a large current will start to flow in the reverse direction. This phenomenon is referred to as battery-like action. The precise reverse breakdown voltage for this diode can be determined by laser trimming.

When used in a circuit, the TZMB7V5-GS18 Zener diode is usually connected in reverse across two terminals. When the input voltage is below the reverse breakdown voltage, the diode will be non-conductive, providing a high-impedance load. When the input voltage is higher than the reverse breakdown voltage, the diode will become conductive and provide a low-impedance path. This low-impedance path limits the output voltage, acting as a stabilizer.

In summary, the TZMB7V5-GS18 is a Zener diode with a wide application field and reliable working principle. It has a dual operating temperature range of -65°C to +175°C and power ratings up to 500mW. It is ideal for high gain switching, suppressing interference signals, and providing precise voltage control in a circuit. The reverse breakdown voltage is laser trimmed and determined by the device, providing consistency and accuracy for the diode’s stabilizing action.

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