BAS281-GS18

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The BAS281-GS18 belongs to the family of rectifier diodes. It has a wide range of applications, primarily being used in rectification, reverse blocking, polarity protection, and the regulation of current and voltage. The BAS281-GS18 is developed in a SOD-123FL surface mount package and is made with a low forward voltage drop and fast recovery.

The BAS281-GS18 is ideal for use in high frequency low voltage applications such as in DC-DC converters, ripple-coupled voltage regulators, and signal modulation or signal rejection applications. It is also suitable for battery-charging applications, electronic ignition systems, power line filtering, power supplies, and other general purpose discrete signal applications.

The principle of operation of the BAS281-GS18 is very simple. It is basically a diode device with a single anode and a single cathode. When a voltage is applied across the device, the diode allows current to flow in only one direction, from anode to cathode. The current is then “rectified”, meaning that any voltage pulses with alternating directions are eliminated, leaving only a DC (direct current) signal. This process is known as rectification, which is why this device is classified as a rectifier diode.

The device has a very low forward voltage drop (VF) of only 0.41V at IF = 1A and a reverse voltage blocking capability of up to 18V. This makes it suitable for use in low voltage and high frequency applications, as the device is able to maintain a good level of energy efficiency even when the frequency of the applied voltage varies. The device also has a fast reverse recovery time (trr) of less than 200ns, which prevents it from excessive power loss when used in reverse blocking applications. Additionally, the BAS281-GS18 has a low capacitance of only 0.12pF and low leakage current of only 2uA at VR=10V, making it suitable for use in precision voltage regulation circuits.

In summary, the BAS281-GS18 is a single rectifier diode that is well suited for use in low voltage and high frequency applications such as in DC-DC converters, ripple-coupled voltage regulators, and signal modulation or signal rejection applications. It has a low forward voltage drop, fast reverse recovery time and low capacitance, all of which aid in its efficiency and longevity when used in these applications.

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