LFXTAL003169B

Overview

The LFXTAL003169B is a 10 MHz fundamental mode quartz crystal resonator manufactured by IQD Frequency Products. It utilizes the HC-49/4H through-hole package with resistance welding and inert gas hermetic sealing. Key electrical specifications include a frequency tolerance of ±30 ppm at 25°C, a frequency stability of ±50 ppm over the industrial temperature range of -20°C to +70°C, and a maximum equivalent series resistance (ESR) of 40 Ohms. The device operates with a load capacitance (CL) of 30 pF and features glass-to-metal sealed leads for enhanced environmental protection.

Feature Summary

• Hermetically sealed construction using resistance welding and inert atmosphere to ensure long-term reliability in harsh environments
• Glass-to-metal lead seals provide superior moisture and contamination resistance compared to standard plastic encapsulated crystals
• Fundamental oscillation mode operation simplifies circuit design by eliminating overtone matching requirements

Applications

• Industrial control systems requiring stable clock signals in indoor cabinet or outdoor enclosures
• Communication interfaces such as CAN bus and RS-485 networks needing reliable synchronization
• Low-power embedded devices utilizing microcontrollers like STM32L series where low ESR facilitates startup

Procurement Notes

Verify that the specific order suffix matches the required packaging format, as standard bulk or reel options may differ from the base part number. Confirm that the HC-49/4H through-hole footprint aligns with the PCB layout constraints. Ensure the selected variant meets the specific thermal cycling and humidity testing standards required for the target application environment before finalizing procurement.

Selection Notes

Select this component when high environmental durability is critical due to its hermetic sealing technology. The 30 pF load capacitance requires careful calculation of external capacitors, typically around 47 pF per side considering stray capacitance, to achieve optimal frequency accuracy. The low ESR specification makes it suitable for applications with limited drive capability or strict power consumption limits.

Part Context

This crystal belongs to the HC49/4HSMX series produced by IQD Frequency Products, a subsidiary of Wurth Elektronik. The series is designed for industrial-grade applications demanding robust performance. The manufacturer leverages decades of experience in frequency control to provide components that meet stringent quality standards for aerospace, automotive, and medical sectors.

Replacement Considerations

The IQD LFXTAL003169B is functionally equivalent to the Wurth Elektronik part number 830003169B. When substituting, verify that the replacement unit maintains the same HC-49/4H package dimensions and hermetic sealing characteristics to ensure compatibility with existing assembly processes and environmental ratings.