TZM5265F-GS18

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The TZM5265F-GS18 is a single zener diode of the small signal type that can be used for a variety of applications. The diode operates as a voltage regulating device, with a maximum reverse blocking voltage of 18 volts and a maximum power dissipation of 500 milliwatts. It has a maximum leakage current of 20 μA, and an operating junction temperature of +125°C.

In the simplest of applications, the TZM5265F-GS18 can be used as a voltage reference for circuits that require a specific voltage level. The diode regulates the voltage across a load by diverting a certain amount of current when the voltage exceeds the breakdown voltage of the diode, thus maintaining the desired voltage level. The diode may also be used as a protective device in applications requiring a certain voltage level, such as in relay coils or in the reverse bias of transistors.

The operating principle of the TZM5265F-GS18 is based on the zener breakdown effect, wherein an applied electric field exceeds the breakdown voltage of the diode, resulting in a large current flow. When the applied voltage exceeds the breakdown voltage, the device begins to conduct, unlike a standard diode, which blocks current until the forward voltage reaches a certain level. Zener diodes, being inherently nonlinear, will not allow current to flow until a critical level of voltage is exceeded, and this effect is what is used for voltage regulation in many applications.

In order to ensure the stable operation of the diode, several considerations must be taken into account. First, the power dissipation of the diode must be monitored, as the current flow is dependent on the resistance of the load. Additionally, caution must be taken to ensure that the temperature of the diode does not exceed the maximum operating temperature of +125°C. Finally, the operating voltage should not exceed the breakdown voltage of the diode, as this can result in permanent damage or catastrophic failure.

The TZM5265F-GS18 provides a robust solution for applications requiring a voltage reference or voltage regulator, where space is a premium. Its small size and ability to withstand a wide operating temperature range are just some of the advantages of this diode. Additionally, with its high level of reliability and ease of fabrication, it is an ideal choice for circuit designers who require a reliable and cost effective solution.

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