LFXTAL026548

Overview

The LFXTAL026548 is a surface-mount quartz crystal resonator manufactured by IQD Frequency Products. It operates at a nominal frequency of 24 MHz with a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm across the operating temperature range. The component features a load capacitance of 18 pF and an equivalent series resistance (ESR) maximum of 40 Ohms. It utilizes the HC-49/US package, measuring 11.4 mm in length and 4.9 mm in width, with a maximum height of 4.5 mm. The device supports a drive level up to 500 μW and exhibits an annual aging rate of ±5 ppm at 25°C.

Feature Summary

• Utilizes HC-49/US SMD package for compact integration
• Provides stable oscillation with low ESR characteristics
• Maintains frequency accuracy within specified industrial temperature ranges

Applications

• Bluetooth Low Energy (BLE) communication modules
• Microcontroller unit (MCU) main clock sources
• Ethernet PHY interface timing references
• USB controller synchronization circuits

Procurement Notes

Verify that the specific order matches the HC-49/US package dimensions and 18pF load capacitance requirements. Confirm the operating temperature range aligns with the design's environmental constraints. Ensure the drive level specifications are compatible with the target oscillator circuit to prevent over-driving or failure to start.

Selection Notes

Select this component when a standard 24 MHz reference is required for digital interfaces like USB or Ethernet. The 18pF load capacitance simplifies matching capacitor calculations for common MCU designs. The robust mechanical construction and defined aging rates support long-term reliability in industrial applications without requiring frequent software calibration.

Part Context

This part belongs to the HC-49/4HSMX series from IQD Frequency Products, a subsidiary of Würth Elektronik. IQD specializes in frequency control solutions for automotive, industrial, and consumer markets. The LFXTAL026548 represents a standard through-hole footprint adapted for surface mount technology, bridging legacy design practices with modern PCB assembly requirements.

Replacement Considerations

The LFXTAL026900 is a related variant but operates at 6 MHz with different electrical parameters. Direct substitution requires verifying frequency compatibility. No other direct cross-reference models are confirmed in the provided documentation.