LFXTAL078426B

Overview

The LFXTAL078426B is a fundamental mode quartz crystal resonator from the HC49/4H series, manufactured by IQD Frequency Products. It operates at a nominal frequency of 11.0592 MHz with a load capacitance of 30 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a frequency tolerance of ±20 ppm and stability of ±20 ppm over an operating temperature range of -20°C to +70°C. Designed for through-hole radial mounting, it utilizes a standard HC-49/4H package.

Feature Summary

• Fundamental oscillation mode operation within the HC49/4H series
• Radial leaded construction for through-hole PCB integration
• Stable performance across commercial temperature ranges

Applications

• Microcontroller clock circuits
• Serial communication interfaces
• General-purpose timing references

Procurement Notes

Verify the specific suffix 'B' against official IQD documentation to confirm exact packaging or handling specifications. Ensure the required load capacitance matches the target circuit design. Confirm that the through-hole form factor aligns with the assembly process capabilities. Cross-reference the ESR value with oscillator drive level requirements to prevent over-driving.

Selection Notes

Select this component when a 11.0592 MHz reference is required for through-hole applications. The HC49/4H package offers robust mechanical stability compared to surface-mount alternatives. Consider the 40 Ohm ESR for oscillator circuit impedance matching. Verify that the ±20 ppm stability meets the system's timing accuracy requirements under varying thermal conditions.

Part Context

This part belongs to the HC49/4H family of quartz crystals, widely used in industrial and commercial electronics. IQD Frequency Products supplies these components as part of their extensive portfolio of timing devices. The product line supports various frequencies and packages to meet diverse design constraints.

Replacement Considerations

Compatible substitutes include other HC49/4H format crystals with identical 11.0592 MHz frequency, 30 pF load capacitance, and comparable ESR values. Ensure any replacement maintains the same fundamental mode and through-hole pinout compatibility.