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The STR-D4512 is a hybrid IC voltage regulator module that can provide a positive output voltage of 150 V and a maximum output current of 4 A. It is designed for use in switch mode power supplies for color TVs and other applications that require high voltage and high current. The STR-D4512 has a built-in overcurrent protection circuit, thermal shutdown circuit, and output short-circuit protection circuit. It also has a soft start function that reduces the inrush current at startup