F5X-32768-070-D90-R-W

Crystals Overview

The F5X-32768-070-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 7.0 pF and an equivalent series resistance (ESR) of 90 kOhms. The component features a compact 4-SMD, No Lead package with dimensions of 1.20mm x 1.00mm. Designed for low-power applications, it 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.
• Optimized for ultra-low standby power consumption with a maximum drive level of 0.5 μW.

Crystals Applications

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

Crystals Procurement Notes

Verify the specific suffix codes on the ordering information to confirm load capacitance and sealing specifications. Ensure compatibility with standard SMT reflow profiles. Confirm that the 1.20mm x 1.00mm footprint aligns with the target PCB design constraints before finalizing procurement orders.

Crystals Selection Notes

Select this component when space constraints are critical and high reliability in varying temperatures is required. The 7.0 pF load capacitance suits circuits designed for this specific value. Consider higher precision or extended temperature variants if the application demands tighter tolerance or operation beyond the standard industrial range.

Crystals Part Context

This model belongs to the TFX/F5X series of miniature tuning fork crystals. It represents a specialized line of components engineered for extreme miniaturization while maintaining the stability of traditional quartz resonators. The series is distinct from larger through-hole or standard SMD crystals due to its unique packaging technology.

Crystals Replacement Considerations

Direct substitutes include other models within the same River Eletec series with different load capacitances, such as F5X-32768-050-D90-R-W (5pF), F5X-32768-090-D90-R-W (9pF), or F5X-32768-125-D90-R-W (12.5pF). Verify circuit compatibility when changing load capacitance values.