32.768K7PI/MC306

Crystals Overview

The YIC 32.768K7PI/MC306 is a surface-mount tuning fork crystal resonator designed for precision timing applications. It operates at a nominal frequency of 32.768 kHz with a load capacitance of 7 pF and a maximum series resistance of 50 kOhms. The component features a frequency tolerance of ±20 ppm and an aging rate of ±3 ppm per year. It utilizes a 4-SOJ package with a 5.50 mm pitch, measuring 8.00 mm in length, 3.80 mm in width, and 2.50 mm in height. The device supports an operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Surface-mount tuning fork design optimized for low-power consumption
• High stability with ±20 ppm initial tolerance and ±3 ppm/year aging
• RoHS compliant construction for environmental safety

Crystals Applications

• Real-time clock circuits in portable electronics
• Microcontroller system timing references
• Wristwatch and wearable device oscillators
• Low-frequency signal generation in embedded systems

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure compatibility with required load capacitance and tolerance specifications. Confirm that the 4-SOJ package dimensions align with the target PCB footprint. Check RoHS compliance status if restricted substances are a project constraint. Ensure the selected variant matches the required operating temperature range for the intended application environment.

Crystals Selection Notes

Select this component when a precise 32.768 kHz reference is required for timekeeping or low-speed synchronization. The 7 pF load capacitance specification must match the oscillator circuit design to achieve the stated ±20 ppm accuracy. Consider the 50 kOhm maximum series resistance for compatibility with high-impedance oscillator inputs. The compact SMD form factor suits space-constrained designs requiring reliable long-term frequency stability.

Crystals Part Context

This part belongs to the MC306 series of tuning fork crystals manufactured by YIC Electronics. These components are specifically engineered for applications requiring stable, low-frequency oscillation. The series is characterized by its small physical profile and suitability for automated surface-mount assembly processes, providing a reliable timing solution for consumer and industrial electronic devices.

Crystals Replacement Considerations

Direct substitutes must match the 32.768 kHz frequency, 7 pF load capacitance, 4-SOJ package, and 5.50 mm pitch. Verify equivalent electrical parameters including ESR and stability ratings before substitution.