LFXTAL078520BULK

Overview

The LFXTAL078520BULK is a quartz crystal resonator manufactured by IQD Frequency Products. It operates at a nominal frequency of 3.6864 MHz with a fundamental mode configuration. The component features a load capacitance of 18 pF and offers a frequency tolerance of ±30 ppm alongside a stability of ±50 ppm. Designed for through-hole mounting, it utilizes the HC-49/3.5H package style. The equivalent series resistance (ESR) is specified at 300 Ohms. The device supports an operating temperature range from -40°C to +85°C and is supplied in bulk packaging.

Feature Summary

• Fundamental mode quartz crystal operation
• Through-hole HC-49/3.5H package compatibility
• Extended industrial temperature range capability

Applications

• Microcontroller clock circuits
• Real-time clock modules
• Industrial control systems

Procurement Notes

Verify the specific package variant against the datasheet, as HC-49/U and HC-49/S dimensions differ. Confirm that the 18 pF load capacitance matches the oscillator circuit design requirements. Ensure the ±30 ppm tolerance meets system timing accuracy specifications. Check for RoHS compliance status if required by project standards.

Selection Notes

Select this component when a standard through-hole crystal is required for 3.6864 MHz applications. The HC-49/3.5H form factor suits legacy or high-vibration environments where surface mount options are unsuitable. Consider the ESR value to ensure proper oscillation startup conditions within the target circuit design.

Part Context

This part belongs to the IQD LFXTAL series of general-purpose quartz crystals. It represents a standard commercial-grade solution suitable for non-critical timing applications. The manufacturer provides this component as part of a broad portfolio covering various frequencies and package styles for global electronics manufacturing.

Replacement Considerations

Cross-reference with other manufacturers offering HC-49/3.5H packaged crystals at 3.6864 MHz. Verify pin compatibility and mechanical footprint before substitution. Ensure electrical parameters such as ESR and load capacitance remain within acceptable limits for the existing oscillator circuit.