ZXRE1004ERSTOA

Overview

The ZXRE1004ERSTOA is a discontinued shunt voltage reference IC manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.22V with an initial tolerance of ±2%. The device operates within a current range of 8µA to 20mA and features a typical temperature coefficient of 20ppm/°C, with a maximum of 75ppm/°C. It utilizes an E-Line (TO-92 compatible) three-pin package designed for through-hole mounting. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides a stable 1.22V bandgap reference voltage suitable for precision applications
• Designed for ultra-low power consumption with a minimum knee current of 4µA
• Offers unconditional stability and high tolerance for capacitive loads
• Serves as a pin-for-pin compatible alternative to legacy REF1004 and LT1004 references

Applications

• Battery powered equipment
• Precision power supplies
• Portable instrumentations
• Data acquisition systems
• A/D and D/A converters

Procurement Notes

This specific part number is officially obsolete and not recommended for new designs. Verification of availability is restricted to existing stock or surplus channels only. Sourcing should prioritize the manufacturer's designated replacement, the ZXRE125, to ensure long-term supply continuity and compliance with current manufacturing standards.

Selection Notes

Select this component only if the E-Line through-hole form factor is strictly required and the design does not mandate future production scalability. The ZXRE1004 series offers tighter tolerances such as 0.5% and 1%, but these variants are also marked obsolete. Designers requiring surface mount solutions should evaluate the SOT23 package options within the same family.

Part Context

The ZXRE1004 belongs to the ZXRE10 series of micro-power voltage references developed by Diodes Incorporated. This series was engineered to replace older industry-standard references while providing superior performance in low-current environments. The E-Line variant specifically targets legacy board layouts that utilize TO-92 style through-hole footprints.

Replacement Considerations

Diodes Incorporated explicitly recommends using the ZXRE125 as the replacement for the ZXRE1004 series.