F5X-32768-125-D90-R-W

Crystals Overview

The F5X-32768-125-D90-R-W is a surface-mount tuning fork crystal resonator manufactured by River Eletec Corporation. It operates at a nominal frequency of 32.768 kHz with a load capacitance of 12.5 pF and an equivalent series resistance (ESR) of 90 kOhms. The component utilizes a 4-SMD, no lead package configuration with dimensions of 1.20mm x 1.00mm. It features a frequency tolerance of ±20ppm at 25°C and supports a standard operating temperature range of -40°C to +85°C.

Crystals Feature Summary

• Utilizes quartz crystal material for the package shell to reduce weight and improve thermal expansion matching compared to ceramic packages.
• Employs metal diffusion sealing (MDS) technology to enhance hermeticity and environmental stability against high humidity.
• Designed for ultra-low power consumption with a maximum drive level of 0.5μW, suitable for battery-operated devices.

Crystals Applications

• Real-time clock (RTC) circuits in wearable electronics
• Low-power embedded systems requiring precise timekeeping
• Automotive sensing nodes and infotainment systems

Crystals Procurement Notes

Verify that the specific suffix 'W' corresponds to the required packaging or specification variant as defined in the official datasheet. Confirm the load capacitance matches the target circuit design requirements before ordering. Ensure compatibility with standard SMT assembly processes given the 4-SMD no-lead form factor.

Crystals Selection Notes

Select this component when space constraints require a 1210 footprint for a 32.768kHz oscillator. Consider the 12.5pF load capacitance requirement for the host circuit. Evaluate the need for extended temperature ranges (-40°C to +105°C) or AEC-Q200 certification if deploying in automotive environments.

Crystals Part Context

This part belongs to the TFX/F5X series of miniature tuning fork crystals. It represents a compact solution for RTC applications where traditional larger packages do not fit within device enclosures. The series emphasizes miniaturization while maintaining quartz-based performance characteristics.

Crystals Replacement Considerations

Direct substitutes include the F5X-32768-125-D90-R-N variant from the same manufacturer family. Verify pinout and electrical parameters match before cross-referencing with other brands.