RH100-40.000-11.5-F-0720-T-NS3

Crystals Overview

The RH100-40.000-11.5-F-0720-T-NS3 is a surface-mount microprocessor crystal manufactured by Raltron Electronics, designed for precise timing applications in industrial environments. It operates at a nominal frequency of 40.000 MHz with a high initial frequency tolerance of ±7 ppm maximum at 25°C. The component features a load capacitance of 11.5 pF and a maximum equivalent series resistance (ESR) of 30 Ohms, ensuring reliable oscillation across various MCU circuits. It supports an extended operating temperature range from -20°C to +90°C, maintaining stability within ±20 ppm total drift over the full range. With an annual aging rate of ±1 ppm, it offers long-term reliability for critical clock sources.

Crystals Feature Summary

• High precision frequency stability suitable for demanding industrial communication protocols
• Extended temperature range capability for harsh environmental operation
• Low equivalent series resistance for robust driving margin
• Long-term aging performance ensures minimal frequency drift over device lifetime

Crystals Applications

• Industrial gateway main clock generation
• CAN bus and CAN FD communication interfaces
• Microcontroller system reference clocks
• IoT sensor node timing sources

Crystals Procurement Notes

Verify that the specific ordering suffix matches the required load capacitance and temperature grade. Confirm the package dimensions align with the PCB footprint, specifically noting the 4-SMD no-lead configuration. Ensure the supply chain source provides original manufacturer documentation to guarantee authenticity and traceability. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Crystals Selection Notes

Select this component when high accuracy is required for industrial-grade applications. The ±7 ppm tolerance exceeds standard commercial grades, making it ideal for protocols sensitive to timing errors. Consider the 11.5 pF load capacitance when designing the matching capacitor network on the PCB layout. Evaluate the ESR limits against the target microcontroller's oscillator circuit capabilities to ensure proper start-up conditions.

Crystals Part Context

This part belongs to the RH100 series of surface-mount crystals from Raltron Electronics. The series targets microprocessor applications requiring stable clock signals. The specific model denotes a 40 MHz frequency with a 11.5 pF load capacitance. It is distinct from other variants in the series that may offer different tolerances or temperature ranges.

Crystals Replacement Considerations

Direct substitutes must match the 40 MHz frequency, 11.5 pF load capacitance, and 4-SMD no-lead package. Verify that alternative components meet the ±7 ppm initial tolerance and 30 Ohm ESR specifications. Ensure the replacement supports the -20°C to +90°C operating range if industrial certification is required.