CZRF4V3B-HF

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Diodes - Zener - Single series power supply modules have many forms and have been used in many electronic products and communication equipment to meet the electricity conversion requirements. CZRF4V3B-HF is one of them. It is a small-footprint single diode-style power supply module highly recommended by its consumers due to its higher power rating and smaller package. This article will introduce this product\'s application field and working principle.

Application Field

CZRF4V3B-HF can be used for a variety of applications, especially for power supplies, because of its high efficiency, low output ripple and the high temperature environment it can operate in. It is typically used in automotive electronics, home appliances, consumer electronics, communication products, industrial equipment, instrumentation and other electronic equipment. Moreover, CZRF4V3B-HF can also be used in low-noise, high-ripple and low-ripple systems as a voltage regulator circuit component.

Working Principle

CZRF4V3B-HF is a single Zener diode type power supply designed for low pressure drop, high efficiency and low noise operation. It has an internal diode and two terminal output connection, which is the basic configuration of an unregulated power supply module. The working principle of the CZRF4V3B-HF is relatively simple: when the input voltage is higher than the internal diode forward recovery voltage, it will start to operate. In this state, the current flowing through the forward biased diode is converted into heat and output regulated voltage by energy transfer between the input and output capacitor.

The internal diode of CZRF4V3B-HF will be reverse biased when its input voltage drops below the Zener voltage. This is the most important part of CZRF4V3B device, the reverse biased diode will conduct the reverse leakage current, but it can be ignored because the current is very small. On the condition of all terminals being short-circuit protected, the noise at the output is quite small, which ensures that CZRF4V3B-HF will produce low electrical disturbance.

In summary, CZRF4V3B-HF is a single diode-style power supply module developed for various applications. It has a high power rating, low power drop and small package, so it can be used in many different electronics products and communication equipment, specifically designed for low noise, high ripple and small output ripple requirements.

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