3121M-32768DT09LLK

Crystals Overview

The 3121M-32768DT09LLK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 32.768 kHz, designed for precision timing applications. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 90 kOhms. Frequency tolerance is specified at ±20 ppm. The device utilizes a tuning fork design and is housed in a compact 2-SMD, No Lead package, suitable for surface-mount assembly.

Crystals Feature Summary

• Tuning fork design optimized for low power consumption
• Compact 2-SMD no lead package for space-constrained layouts
• High reliability quartz frequency control unit

Crystals Applications

• Real-time clock circuits
• Microcontroller system clocks
• Portable electronic devices

Crystals Procurement Notes

Verify the specific suffix LLK against official manufacturer documentation to confirm exact load capacitance and ESR specifications. Ensure compatibility with existing PCB footprint dimensions for the 2-SMD package. Cross-reference the ±20 ppm tolerance requirement with system timing accuracy needs before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 32.768 kHz reference is required for timekeeping functions. The 9 pF load capacitance must match the oscillator circuit design. Consider the 90 kOhm ESR limit for drive level sensitivity. The SMD form factor supports automated assembly processes for high-volume production environments.

Crystals Part Context

This part belongs to the 3121M series of quartz crystals from Suzhou Hangjing. The company specializes in quartz frequency controlling units established in 2014. This series targets consumer electronics requiring stable, low-frequency oscillation sources within minimal physical footprints.

Crystals Replacement Considerations

Direct substitutes require matching 32.768 kHz frequency, 9 pF load capacitance, and 2-SMD package dimensions. Verify ESR limits and tolerance grades. Consult manufacturer cross-reference lists for verified equivalents.