7A-14.31818MAAJ-T

Crystals Overview

The 7A-14.31818MAAJ-T is a surface-mount quartz crystal resonator manufactured by TXC Corporation. It operates at a nominal frequency of 14.31818 MHz with a load capacitance of 18 pF and a frequency tolerance of ±30 ppm. The component features an equivalent series resistance (ESR) of 50 Ohms and utilizes a fundamental oscillation mode. It is housed in a compact 2-SMD, No Lead package measuring 5.0 mm x 3.2 mm with a maximum height of 1.6 mm. The device supports a standard operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Provides stable frequency generation for digital circuits using fundamental mode quartz resonance.
• Designed for automated surface-mount assembly processes with a leadless SMD form factor.
• Ensures reliable operation across industrial temperature ranges with specified frequency stability.

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references for communication interfaces such as UART and SPI
• Frequency standards for consumer electronic devices

Crystals Procurement Notes

Verify the specific suffix and package dimensions against the official datasheet to ensure compatibility with the target PCB footprint. Confirm that the required load capacitance matches the circuit design specifications. Check for RoHS compliance status and any automotive qualification requirements if applicable to the end product. Ensure storage conditions adhere to manufacturer guidelines to maintain component integrity prior to soldering.

Crystals Selection Notes

Select this component when a precise 14.31818 MHz reference is required for synchronous data transmission or processing tasks. Consider the 18 pF load capacitance requirement to ensure accurate frequency alignment with the host oscillator circuit. Evaluate the ±30 ppm tolerance against system timing budgets. Choose this surface-mount variant for designs prioritizing space efficiency and high-volume manufacturing integration over through-hole alternatives.

Crystals Part Context

This part belongs to the 7A series of surface-mount crystals from TXC Corporation, which are widely used in general-purpose electronics. The 14.31818 MHz frequency is commonly derived from video and audio sampling rates, making it suitable for multimedia applications. As a passive frequency control element, it complements active oscillators by providing the necessary resonant foundation for clock distribution networks in embedded systems.

Crystals Replacement Considerations

Cross-reference with other 14.31818 MHz SMD crystals offering identical 18 pF load capacitance and similar ESR values. Verify mechanical footprint compatibility, specifically the 5.0x3.2 mm dimensions. Ensure replacement parts meet the same ±30 ppm tolerance and -40°C to +85°C temperature range specifications to maintain system performance.