BZX38450-Q Voltage Regulator Diodes Nexperia BZX38450-Q Voltage Regulator Diodes offer compact voltage regulation for high-density circuits. These low-current devices operate at a 1.8V to 75.0V wide voltage range with a maximum 250mA forward current. The BZX38450-Q Diodes are specified at a low 50μA test current, making them ideal for low bias and portable battery-powered applications.