The AS431 BZ-E1 052D19 is a three-terminal adjustable shunt regulator or transistor-like component typically used in precision voltage regulation applications. It functions similarly to a low-temperature coefficient Zener diode but offers greater stability and control by allowing the output voltage to be set via external resistors. This part is widely used in power supplies, voltage monitors, and LED drivers.
Applications:
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Switch-mode power supplies (SMPS)
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Battery chargers
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Precision regulators
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Voltage monitoring circuits
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LED current regulation
