LFXTAL054555

Overview

The LFXTAL054555 is a surface-mount quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 25 MHz with a frequency stability and tolerance of ±20 ppm. The component utilizes the HC-49/US package, measuring 11.40 mm in length, 3.80 mm in width, and up to 4.30 mm in height. It features a load capacitance of 20 pF and an equivalent series resistance (ESR) of 40 Ohms. Designed for fundamental mode operation, it supports a temperature range of -40°C to +85°C.

Feature Summary

• Surface-mount construction within the standard HC-49/US package
• Fundamental resonance mode operation
• Hermetically sealed glass-to-metal lead seals

Applications

• Microcontroller clock circuits
• Communication equipment timing references
• Industrial control systems

Procurement Notes

Verify the specific packaging configuration required for production, as this part number may be available in tape and reel or cut tape formats depending on distributor inventory. Confirm that the HC-49/US footprint matches the target PCB design. Ensure the ±20 ppm stability meets the system's timing requirements before finalizing the order.

Selection Notes

Select this component when a standard surface-mount crystal is needed for 25 MHz applications. The HC-49/US form factor allows for automated assembly while maintaining robust mechanical integrity. Consider the 40 Ohm ESR value for oscillator circuit compatibility. The wide operating temperature range suits diverse environmental conditions.

Part Context

This crystal belongs to the IQD Frequency Products line of passive components. IQD specializes in frequency control solutions, including crystals and oscillators. The company provides products for various sectors, emphasizing reliability and precision in timing applications across global markets.

Replacement Considerations

Direct substitutes must match the 25 MHz frequency, 20 pF load capacitance, and HC-49/US package dimensions. Verify equivalent ESR values and temperature ranges to ensure circuit performance consistency.