LFXTAL078433B

Overview

The LFXTAL078433B is a through-hole quartz crystal manufactured by IQD Frequency Products. It operates at a fundamental frequency of 20.0 MHz with a load capacitance of 20 pF. The component features a tolerance and stability of ±30 ppm across the operating temperature range of -20°C to +70°C. It utilizes an HC-49/3.5H package, measuring 11.35 mm in length and 4.85 mm in width. The equivalent series resistance (ESR) is specified as 60 Ohms, with a drive level of 500 µW.

Feature Summary

• Fundamental mode quartz crystal resonator for stable clock generation
• Through-hole radial leaded construction for standard PCB mounting
• Industrial temperature range operation from -20°C to +70°C

Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic timing

Procurement Notes

Verify the specific suffix and package variant against the official datasheet before ordering. Confirm that the HC-49/3.5H form factor matches the target PCB footprint requirements. Ensure the 20 pF load capacitance aligns with the oscillator circuit design specifications to maintain accurate frequency performance.

Selection Notes

Select this component when a through-hole mounting style is required for robust mechanical connection. The 20 MHz frequency suits common baud rate dividers and microcontroller systems. Consider the -20°C to +70°C temperature range suitability for the intended environmental conditions.

Part Context

This part belongs to the HC-49/3.5H series of quartz crystals from IQD Frequency Products. These components are designed for general-purpose timing applications requiring reliable frequency stability. The series offers various frequencies and load capacitances to suit different oscillator circuit designs.

Replacement Considerations

Cross-reference with other HC-49/3.5H crystals offering 20.0 MHz frequency and 20 pF load capacitance. Verify that substitute parts meet or exceed the ±30 ppm stability and 60 Ohm ESR specifications.