ZXRE1004FRSTOB

Overview

The ZXRE1004FRSTOB is a discontinued shunt voltage reference IC manufactured by Diodes Incorporated. It provides a fixed output of 1.22V with a tolerance of ±3%. The device operates within a current range of 8µA to 20mA and features a typical temperature coefficient of 75ppm/°C. It is housed in an E-Line (TO-92 compatible) package designed for through-hole mounting.

Feature Summary

• Provides a stable 1.22V bandgap reference voltage suitable for precision applications
• Designed for ultra-low current operation with a minimum knee current of 8µA
• Offers high stability and unconditionally stable performance under capacitive loads

Applications

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

Procurement Notes

This component is officially obsolete and not recommended for new designs. Verify availability through secondary market channels or authorized distributors handling surplus stock. Confirm the specific suffix matches the required package and tolerance, as ordering variations exist within the family. Replacement strategies should be initiated immediately due to discontinuation status.

Selection Notes

Select this part only if legacy compatibility with REF1004, LT1004, or LM185/385 series is required. The E-Line package suits through-hole designs needing space efficiency comparable to TO-92. Consider tighter tolerance variants like the ZXRE1004DFTA if higher accuracy is needed, though they are also obsolete. Evaluate the 75ppm/°C temperature coefficient against application thermal requirements.

Part Context

The ZXRE1004 series serves as a micro-power voltage reference alternative to established industry standards. It combines low operating current with high capacitive load tolerance. The E-Line variant specifically targets through-hole PCB layouts while maintaining pin compatibility with older reference designs from competitors.

Replacement Considerations

The datasheet explicitly recommends using the ZXRE125 as the replacement for this obsolete product.