3111M-32.768DTN07LLK

Crystals Overview

The 3111M-32.768DTN07LLK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 32.768 kHz, which is standard for real-time clock applications. The component features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 90 kOhms. It utilizes a ±20 ppm frequency tolerance to ensure timing accuracy. The device is housed in a compact 2-SMD, No Lead package, designed for surface-mount assembly on printed circuit boards.

Crystals Feature Summary

• Provides stable oscillation at the standard 32.768 kHz frequency for timekeeping circuits
• Utilizes a lead-free 2-SMD package suitable for automated surface-mount processing
• Designed with specific load capacitance and ESR parameters for precise oscillator matching

Crystals Applications

• Real-time clock circuits in consumer electronics
• Timekeeping modules in mobile devices
• Embedded systems requiring low-frequency reference signals

Crystals Procurement Notes

Verify the exact load capacitance and ESR specifications against the target oscillator circuit design before procurement. Confirm that the 2-SMD no-lead package dimensions align with the PCB footprint requirements. Ensure the ±20 ppm tolerance meets the system's timing accuracy constraints. Cross-reference the manufacturer part number with official distributor catalogs to confirm current availability and authenticity.

Crystals Selection Notes

Select this component when a 32.768 kHz reference signal is required for digital timekeeping applications. The 7 pF load capacitance must match the external capacitors used in the oscillator circuit to maintain frequency stability. Consider the 90 kOhm ESR limit to ensure reliable startup conditions within the host microcontroller or RTC module. Evaluate the ±20 ppm tolerance against environmental temperature variations expected in the final application.

Crystals Part Context

This crystal belongs to the family of quartz frequency control components produced by Suzhou Hangjing Elec&Tech Co., Ltd. The company specializes in research and development of quartz units for global electronics markets. This specific model represents a standard surface-mount solution for low-frequency timing needs, distinct from higher-frequency or packaged oscillator variants offered by the manufacturer.

Crystals Replacement Considerations

Direct substitutes must share the 32.768 kHz frequency, 7 pF load capacitance, and compatible ESR values. Verify package compatibility for the 2-SMD no-lead form factor. Check if alternative manufacturers offer equivalent ±20 ppm tolerance ratings. Ensure any replacement maintains the same electrical characteristics to avoid oscillator failure or frequency drift.