CMPZ5258B TR

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CMPZ5258B TR application field and working principle

CMPZ5258B TR is classified in Diodes - Zener - Single. It is a 350mW, 5.2V zener diode with general-purpose, high-stability, wide operating temperature range and space-saving SOT23 package.

Application field

CMPZ5258B TR feature an extremely low zener impedance rating and the low temperature coefficient with excellent stability over time and operating temperature range. As a result, CMPZ5258B TR are suitable for a variety of applications such as voltage regulation, over-voltage protection, latch-up prevention, HV-CMOS bias voltage and high-reliability computing. Furthermore, CMPZ5258B TR are also used in broadcasting equipment, high-frequency communication, etc..

Working principle

CMPZ5258B TR comprises of a PN junction diode in which the anode terminal is connected to an electrically conducting lead and the cathode terminal is connected to a heavily doped region opposite to the anode. The cathode terminal is asymmetrically doped in order to form a heavily doped region, which is usually referred to as the Zener region (or simply the Zener region). The Zener region serves to reduce the barrier voltage needed for reverse conduction. Upon sufficient forward or reverse biasing, the PN junction diode will become active. When the diode is forward biased, the forward current flows from the anode to the cathode and the PN junction diode is said to be on or conducting state. On the other hand, when the PN junction is reverse biased, the current flow from the cathode to the anode. Reverse conduction is established when the Zener breakdown voltage is exceeded and the Zener region conducts current monopolarly.

By controlling the magnitude of the reverse bias voltage and current, the CMPZ5258B TR diode can be used to provide a stable output voltage. As the input voltage increases, the reverse bias voltage will be limited to the Zener breakdown voltage, thereby maintaining the output voltage at a constant level. As the input voltage decreases, the current passing through the diode will be reduced, resulting in a decrease in the output voltage. The CMPZ5258B TR diode is able to maintain a constant output voltage over a range of input voltage levels, which makes it an extremely useful device for applications such as voltage regulation and over-voltage protection.

Therefore, CMPZ5258B TR are an efficient, cost-effective solution for providing a stable output voltage over a range of input voltage levels. With its highly reliable performance, low temperature coefficient and excellent stability over time, CMPZ5258B TR is the ideal choice for a wide range of applications.

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