LFXTAL034655

Overview

The LFXTAL034655 is a quartz crystal resonator from the HC49/4HSMX series manufactured by IQD Frequency Products. It operates at a nominal frequency of 16 MHz with a load capacitance of 18 pF. The component exhibits a frequency tolerance of ±20 ppm and a stability of ±50 ppm. It features an equivalent series resistance (ESR) of 40 Ohms and utilizes a surface-mount package measuring 11.4 mm x 4.9 mm. Designed for through-hole or SMD applications, it supports radial termination styles within its series specifications.

Feature Summary

• Surface-mount quartz crystal resonator designed for precision timing applications
• HC49/4HSMX series construction providing standardized footprint compatibility
• Low equivalent series resistance for efficient circuit integration
• RoHS compliant manufacturing ensuring environmental safety standards

Applications

• Microcontroller clock generation circuits
• Communication interface timing references
• Industrial control system oscillators
• Consumer electronics timing modules

Procurement Notes

Verify the specific packaging variant required, as availability may differ between cut tape, reel, or bulk formats. Confirm that the 16 MHz frequency and 18 pF load capacitance align precisely with the target oscillator circuit design. Ensure the surface-mount HC49/4HSMX package dimensions fit the designated PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 16 MHz surface-mount crystal with 18 pF load capacitance is required. The ±20 ppm tolerance suits general-purpose digital logic timing. Consider the 40 Ohm ESR value for oscillator circuit stability. The HC49/4HSMX form factor offers a robust alternative to traditional through-hole crystals while maintaining similar electrical characteristics for direct replacement in compatible designs.

Part Context

This part belongs to the IQD Frequency Products HC49/4HSMX series, which specializes in surface-mount quartz crystals. The series provides various frequencies and package options for modern electronics assembly. IQD Frequency Products, now part of Wurth Elektronik, supplies these components globally for industrial, automotive, and consumer applications requiring reliable frequency control solutions.

Replacement Considerations

Direct substitutes include other manufacturers' 16 MHz surface-mount crystals with identical 18 pF load capacitance and HC49/4HSMX footprints. Verify that replacement parts match the 40 Ohm ESR specification to ensure oscillator startup reliability. Check for equivalent frequency stability ratings of ±50 ppm across the operating temperature range.