LFXTAL003257BULK

Overview

The LFXTAL003257BULK is a quartz crystal manufactured by IQD Frequency Products, designed for through-hole mounting in the HC-49/U package. It operates at a nominal frequency of 3.6864 MHz with a load capacitance of 30 pF. The component exhibits a frequency tolerance of ±20 ppm and a frequency stability of ±50 ppm across an operating temperature range of -10°C to +60°C. Key electrical parameters include an equivalent series resistance (ESR) of 150 Ohms and a drive level of 1 mW. Physical dimensions are 11.05 mm in length, 4.7 mm in width, and 13.46 mm in height, with a lead spacing of 4.88 mm.

Feature Summary

• Hermetically sealed construction using resistance welding and glass-to-metal seals on leads within an inert atmosphere.
• Optimized for standard serial communication interfaces due to integer division capabilities for common baud rates.
• Robust industrial-grade reliability suitable for high-humidity environments and long-term aging stability.

Applications

• Serial communication interface circuits requiring precise clock timing.
• Microcontroller systems utilizing standard baud rates such as 9600 or 115200.
• Industrial control equipment operating within specified temperature ranges.

Procurement Notes

Verify the specific packaging configuration required for production, as this part number may be available in bulk or reel formats depending on supplier inventory. Confirm that the HC-49/U through-hole footprint matches the target PCB design. Ensure the operating temperature range of -10°C to +60°C aligns with the environmental conditions of the final application. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when a stable 3.6864 MHz reference is needed for UART or similar asynchronous communication protocols. The HC-49/U package provides a robust mechanical solution compared to surface-mount alternatives. Consider the 150 Ohm ESR value to ensure compatibility with the oscillator circuit's loading requirements. The ±20 ppm tolerance is sufficient for most general-purpose digital logic applications without requiring external calibration.

Part Context

This component belongs to the HC49 series of quartz crystals from IQD Frequency Products. These devices are characterized by their industry-standard leaded package format, which facilitates easy integration into legacy and modern through-hole designs. The series is widely recognized for providing reliable frequency references in cost-sensitive electronic assemblies where moderate stability is required.

Replacement Considerations

The Würth Elektronik part number 830003257B is documented as a parameter-equivalent substitute. Verify that the replacement maintains identical frequency, load capacitance, and physical dimensions before implementation.