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The ZR40402R50 is a precision micropower voltage reference providing a nominal output of 5.0 V with an initial tolerance of ±2%. It utilizes a bandgap circuit design and operates within a recommended current range of 60 µA to 15 mA, making it suitable for low-power applications. The device features a typical temperature coefficient of 20 ppm/°C over the -40°C to +85°C range and 40 ppm/°C over the extended -55°C to +125°C range. It is housed in a three-pin E-Line (TO-92 style) package.
Verify the specific ordering suffix 'R' corresponds to the E-Line, 3-pin reversed package configuration as documented in the manufacturer's ordering information. Confirm that the component meets the required automotive temperature range specifications if applicable to the end-use environment. Ensure input voltage limits do not exceed absolute maximum ratings during operation.
Select this component when a fixed 5.0 V reference with ±2% accuracy is required in a through-hole compatible form factor. Consider the E-Line package for space-constrained designs needing robust transient handling. Evaluate the 60 µA minimum operating current against system standby requirements to ensure proper regulation under light load conditions.
This part belongs to the ZR4040 series of precision voltage references manufactured by Diodes Incorporated. The series includes variants with different tolerances and packages, such as the SOT23 surface-mount options. The ZR40402R50 specifically denotes the 2% tolerance version in the E-Line package, offering a legacy alternative to modern surface-mount references.
ZR40401R50