LFXTAL027945B

Overview

The LFXTAL027945B is a through-hole quartz crystal manufactured by IQD Frequency Products. It operates at a standard frequency of 16 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The component features a load capacitance of 22 pF and a series resistance of 40 Ohms. It utilizes the HC-49/US package, measuring 11.05 mm in length and 4.7 mm in width.

Feature Summary

• Through-hole mounting configuration for traditional circuit board integration
• High-frequency operation capability centered at 16 MHz
• Standardized HC-49/US package form factor

Applications

• General-purpose clock signal generation
• Microcontroller system timing references
• Digital logic circuit synchronization

Procurement Notes

Verify the specific package variant against design requirements, as HC-49/US dimensions are standardized but lead configurations may vary. Confirm that the 40 Ohm series resistance aligns with the oscillator circuit drive level specifications to prevent over-driving or failure to oscillate. Ensure the 22 pF load capacitance matches the host circuit's total capacitive load requirements for accurate frequency performance.

Selection Notes

Select this component when a robust through-hole solution is required for 16 MHz applications. The HC-49/US package offers mechanical durability suitable for environments where surface-mount devices might be vulnerable. Consider the ±30 ppm tolerance for applications requiring moderate frequency accuracy without the cost of higher-grade crystals.

Part Context

This part belongs to the HC49/4H Series from IQD Frequency Products. IQD is a UK-based supplier specializing in quartz crystals, clock oscillators, and resonators. The company serves diverse sectors including automotive, industrial, and consumer electronics, providing frequency control solutions with established manufacturing capabilities.

Replacement Considerations

Compatible substitutes include other HC-49/US packaged crystals operating at 16 MHz with similar electrical parameters. Verify that alternative sources maintain the 22 pF load capacitance and 40 Ohm series resistance to ensure circuit compatibility.