LFXTAL029370

Overview

The LFXTAL029370 is a surface-mount quartz crystal oscillator manufactured by IQD Frequency Products. It operates at a nominal frequency of 16 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm. It utilizes an HC49/4HSMX package measuring 11.4 mm in length, 4.9 mm in width, and 4.3 mm in height. The maximum equivalent series resistance (ESR) is specified as 40 Ohms, with a drive level of 500 µW. The device supports operation within a temperature range of -20°C to +70°C.

Feature Summary

• Utilizes gas-sealed construction with glass-metal pin seals for environmental protection against moisture and dust ingress.
• Features pre-formed gull-wing leads designed to minimize mechanical stress during reflow soldering processes.
• Provides stable clock signals suitable for low-speed communication interfaces such as UART, SPI, I2C, BLE, and LoRa.

Applications

• Outdoor industrial gateway devices requiring reliable performance in varying temperatures.
• Sensor node solutions serving as primary clocks for wireless transmission modules.
• Automotive aftermarket equipment operating in vibration-prone environments.

Procurement Notes

Verify the specific manufacturing revision and packaging format when sourcing this component, as part number revisions may occur without functional changes. Confirm that the supplier provides official datasheets matching the HC49/4HSMX specifications. Ensure compatibility with the target circuit's load capacitance requirements before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring robust reliability in harsh environments due to its sealed construction. It is appropriate for applications needing moderate frequency stability over a limited industrial temperature range. Consider the 40 Ohm ESR limit when designing the oscillator circuit to ensure proper startup and sustained oscillation.

Part Context

This crystal belongs to the HC49/4HSMX series from IQD Frequency Products, which specializes in quartz crystals and oscillators. The series is engineered for surface-mount technology integration, offering a balance between physical durability and electrical precision for embedded systems.

Replacement Considerations

Cross-reference alternative suppliers for HC49/4HSMX packages with identical 16 MHz frequency, 18 pF load capacitance, and ±30 ppm tolerance. Verify that substitute components meet the same 40 Ohm ESR maximum and operate within the -20°C to +70°C range.