RHF100K1

Overview

The RHF100K1 is a rad-hard, fixed shunt voltage reference providing a stable 1.2 V output. It features an initial accuracy of ±0.15% and operates within a wide current range of 40 µA to 12 mA. The device exhibits a temperature coefficient of 5 ppm/°C and functions between -55 °C and +125 °C. Packaged in a Flat-10 hermetic ceramic SMD housing, it offers high radiation immunity with no single-event latch-up at 120 MeV.cm²/mg.

Feature Summary

• Hermetic Flat-10 ceramic package designed for space applications
• High precision stability under total ionizing dose up to 300 krad (Si)
• Immunity against single-event latch-up at 120 MeV.cm²/mg

Applications

• Spacecraft power management systems
• Radiation-hardened data acquisition circuits
• Precision instrumentation in harsh environments

Procurement Notes

Verify the engineering model status and specific radiation test reports required for your mission profile. Confirm Flat-10 package compatibility with your PCB footprint. Ensure supply chain authorization for rad-hard components. Check for any specific handling instructions regarding the hermetic seal during assembly.

Selection Notes

Select this component when radiation hardness is critical alongside low power consumption. The 1.2 V output suits low-voltage ADC references. Consider the 40 µA minimum current requirement for biasing networks. The Flat-10 package dictates specific layout constraints compared to standard surface-mount options.

Part Context

Part of the RHF100 series dedicated to space electronics. STMicroelectronics designs these references using specialized processes to withstand cosmic radiation. The series targets aerospace industries requiring long-term reliability without degradation from ionizing doses or particle strikes.

Replacement Considerations

No public confirmed substitute part numbers are available.