3121M-32.768DT07LLK

Crystals Overview

The 3121M-32.768DT07LLK is a surface-mount quartz crystal resonator manufactured by Suzhou Hangjing Elec&Tech Co., Ltd. It operates at a fundamental frequency of 32.768 kHz, which is the standard frequency for real-time clock applications. The component features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 90 kOhms. Frequency tolerance is specified at ±20 ppm. The device utilizes a 2-SMD, no lead package configuration, designed for automated assembly processes.

Crystals Feature Summary

• Surface-mount tuning fork crystal design optimized for low-power timing circuits
• Standard 32.768 kHz output frequency suitable for real-time clock integration
• Compact two-terminal SMD package enabling efficient PCB layout

Crystals Applications

• Real-time clock (RTC) circuits in electronic devices
• Wristwatch timing modules
• Low-power consumer electronics requiring precise timekeeping

Crystals Procurement Notes

Verify that the specific ordering suffix matches the required load capacitance and tolerance specifications. Confirm the package dimensions align with the target footprint. Ensure the supplier provides official datasheets to validate the ESR and frequency stability parameters before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 32.768 kHz reference is required for timekeeping functions. The 7 pF load capacitance must match the oscillator circuit design requirements. Consider the ±20 ppm tolerance for general-purpose applications where high precision is not critical. The SMD form factor supports automated manufacturing workflows.

Crystals Part Context

This part belongs to the quartz crystal resonator category produced by Suzhou Hangjing Elec&Tech Co., Ltd. The company specializes in frequency control components including crystals and oscillators. This specific model serves as a passive frequency-determining element within active oscillator circuits.

Crystals Replacement Considerations

Cross-reference compatible parts based on identical 32.768 kHz frequency, 7 pF load capacitance, and 2-SMD package dimensions. Verify equivalent ESR values to ensure circuit stability. Check manufacturer-specific mounting recommendations for direct substitution.