LFXTAL059537BULK

Overview

The LFXTAL059537BULK is a quartz crystal resonator manufactured by IQD Frequency Products, belonging to the CFPX-104 series. It operates at a fundamental frequency of 40 MHz with a frequency tolerance of ±20ppm and stability of ±30ppm. The component features a load capacitance of 18pF and an equivalent series resistance (ESR) of 100 Ohms. Designed for surface mount applications, it utilizes a 4-SMD, no-lead package measuring 5.00mm in length, 3.20mm in width, and 1.00mm in maximum height. The device supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Fundamental mode operation ensures precise timing control for digital circuits.
• Compact 4-SMD no-lead footprint facilitates automated surface mount assembly.
• Wide industrial temperature rating supports reliable performance in harsh environments.

Applications

• Microcontroller clock generation
• Digital signal processing timing references
• Communication interface synchronization

Procurement Notes

Verify the specific ordering suffix against official IQD documentation to confirm packaging configuration, as bulk and reel variants exist for this part number. Confirm that the required frequency tolerance and stability meet the target circuit specifications before procurement. Ensure compatibility with the designated load capacitance in the host design.

Selection Notes

Select this component when a 40 MHz fundamental frequency is required within a compact SMD form factor. Consider the 100 Ohm ESR value for oscillator circuit design to ensure proper startup conditions. Evaluate the ±20ppm tolerance against system timing requirements. Verify that the 18pF load capacitance matches the crystal pins specified in the microcontroller or oscillator datasheet.

Part Context

This part belongs to the CFPX-104 series of quartz crystals from IQD Frequency Products. The series offers various frequencies and packages designed for general-purpose timing applications. IQD provides these components for use in consumer, industrial, and computing electronics requiring stable frequency references.

Replacement Considerations

The LFXTAL059537REEL variant shares identical electrical specifications but differs in packaging format. Cross-reference other manufacturers' 40 MHz 4-SMD crystals ensuring matching load capacitance, ESR, and dimensional constraints for direct substitution.