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The ZXRE4041DFTA is a precision micropower shunt voltage reference providing a fixed output of 1.225V. It features a typical temperature coefficient of 20ppm/°C and an initial accuracy of ±1%. The device operates within a current range of 30µA to 12mA and supports a maximum reverse current of 30mA. It functions reliably across an operating temperature range of -40°C to +125°C.
Verify the specific ordering suffix 'DF' corresponds to the required 1% tolerance grade before procurement. Confirm that the SOT23 package orientation matches the schematic diagram provided in the datasheet, specifically regarding Pin 1 being floating or connected to Pin 2. Ensure the application circuit includes an external series resistor to maintain operation within the recommended current limits of 30µA to 12mA.
Select this component when a compact SOT23 footprint is required for a 1.225V reference. It serves as a pin-for-pin compatible alternative to LM4041 references. Choose the D-grade variant for applications requiring ±1% initial accuracy. Consider the 20ppm/°C typical temperature coefficient for environments with significant thermal variations.
The ZXRE4041 belongs to Diodes Incorporated's family of micro-power voltage references designed for precision applications. It utilizes a bandgap circuit architecture to achieve stable voltage regulation. The device is part of a lineup offering various tolerance grades, including C (0.5%) and F (2%), to suit different precision requirements in portable and industrial electronics.
The datasheet identifies the ZXRE4041 as a pin-for-pin compatible alternative to LM4041 voltage references. Verify electrical specifications such as knee current and temperature coefficient match the original design requirements when substituting.