LFXTAL017146

Overview

The LFXTAL017146 is a 20 MHz quartz crystal resonator from the HC49/4HSMX series by IQD Frequency Products. It features a nominal frequency of 20 MHz with a tolerance of ±30 ppm and stability of ±50 ppm at 25°C. The component has a load capacitance of 30 pF, an ESR of 40 Ohms, and a drive level of 500 uW. It operates within a temperature range of -10°C to +60°C. The package dimensions are 11.4 mm in length, 4.9 mm in width, and 4.3 mm in height, utilizing SMD/SMT termination.

Feature Summary

• HC-49/S surface mount package design for compact board integration
• AEC-Q200 qualified for automotive reliability standards
• Gas-filled hermetic seal construction for environmental protection
• Low equivalent series resistance (ESR) for efficient oscillator coupling

Applications

• Automotive electronic control units (ECUs)
• Industrial data acquisition gateways
• Microcontroller reference clock sources
• Ethernet PHY interface timing

Procurement Notes

Verify the specific suffix (e.g., Reel, Bulk) against current manufacturer documentation, as part numbers may be revised or superseded. Confirm RoHS compliance status directly with the supplier. Ensure the operating temperature range (-10°C to +60°C) meets your application requirements, as this model is not rated for extended industrial temperatures. Check for alternate part numbers if the original listing indicates a revision.

Selection Notes

Select this component when a 20 MHz reference clock is required for automotive or industrial applications demanding AEC-Q200 qualification. The 30 pF load capacitance must match the MCU or oscillator circuit's specified CL value. Verify that the 500 uW drive level is compatible with the host oscillator's output capability to prevent overdriving. The HC-49/S footprint requires adequate PCB space and clearance compared to smaller SMD crystals.

Part Context

This crystal belongs to the HC49/4HSMX series, designed for surface mount applications requiring robust performance. IQD Frequency Products, now part of Wurth Elektronik, specializes in frequency control solutions. This specific model targets markets needing reliable timing sources with established automotive qualifications, bridging traditional through-hole reliability with modern surface mount assembly processes.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. If unavailable, consider other AEC-Q200 qualified 20 MHz crystals in HC-49/S packages from IQD or other manufacturers, ensuring identical load capacitance (30 pF), frequency tolerance (±30 ppm), and physical dimensions.