LFXTAL055663

Overview

The LFXTAL055663 is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 8 MHz with a frequency tolerance of ±20 ppm and a load capacitance of 18 pF. The component supports an operating temperature range from -20°C to +70°C and features a through-hole radial mounting style in an HC-49/4H package. Key electrical parameters include a series resistance of 60 ohms, a drive level of 500 µW, and an aging rate of 3 ppm per year.

Feature Summary

• Hermetically sealed construction using resistance welding and glass-to-metal seals within an inert atmosphere for long-term stability.
• Parallel fundamental resonance mode optimized for standard oscillator circuit integration.
• Industry-standard leaded package design facilitating easy insertion into printed circuit boards.

Applications

• Microcontroller clock source generation
• Real-time timing circuits
• Digital communication interface synchronization

Procurement Notes

Verify the specific packaging configuration required for production, as bulk or cut tape options may be available depending on distributor stock. Confirm that the HC-49/4H package dimensions align with the target PCB footprint and that the 18 pF load capacitance matches the oscillator circuit requirements. Ensure compliance with RoHS standards if applicable to the assembly process.

Selection Notes

Select this component when a stable 8 MHz reference is needed for through-hole applications requiring moderate frequency accuracy. The 60 ohm series resistance and 500 µW drive level are suitable for standard CMOS oscillator designs. Consider thermal performance within the -20°C to +70°C range to ensure reliability under expected environmental conditions.

Part Context

This part belongs to the IQD Frequency Products quartz crystal portfolio, specifically designed for general-purpose timing applications. It utilizes the widely adopted HC-49/4H form factor, ensuring compatibility with existing manufacturing equipment and assembly processes used for similar through-hole crystals in consumer and industrial electronics.

Replacement Considerations

Direct substitutes must match the 8 MHz frequency, 18 pF load capacitance, and HC-49/4H package. Verify equivalent electrical characteristics such as series resistance and drive level to maintain circuit stability without modification.