7A-12.000MAAQ-T

Crystals Overview

The 7A-12.000MAAQ-T is a quartz crystal resonator manufactured by TXC Corporation, designed for surface-mount applications. It operates at a fundamental frequency of 12 MHz with a frequency tolerance and stability of ±30 ppm. The component features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 80 Ohms. It utilizes a 5 mm x 3.2 mm SMD package with a height of 1.2 mm. The device supports a drive level of 100 uW and functions within a temperature range of -40°C to +85°C. This specific part number is classified as obsolete and is no longer in production.

Crystals Feature Summary

• Glass-sealed construction provides enhanced environmental stability and resistance to moisture compared to standard ceramic packages.
• Supports standard surface-mount technology (SMT) assembly processes including reflow soldering without requiring specialized工艺 adaptations.
• Complies with RoHS directives, utilizing leaded glass materials that fall under regulatory exemptions.

Crystals Applications

• Portable USB interface cards and data acquisition devices
• Personal Digital Assistants (PDAs) and mobile communication modules
• Digital cameras and consumer electronics requiring stable clock references

Crystals Procurement Notes

This component is officially discontinued and marked as obsolete by the manufacturer. No new units are available from authorized distribution channels. Engineers must verify end-of-life status before finalizing designs. Procurement should focus on identifying verified replacement components or alternative part numbers that meet identical electrical and mechanical specifications to ensure supply chain continuity.

Crystals Selection Notes

Designers should prioritize components with matching 12 MHz frequency, 18 pF load capacitance, and ±30 ppm stability. The 5x3.2mm footprint and SMD mounting style must be compatible with existing PCB layouts. Verify that substitute parts offer equal or superior thermal performance within the -40°C to +85°C range and maintain similar ESR characteristics to ensure oscillator circuit reliability.

Crystals Part Context

The 7A series represents TXC Corporation's line of high-reliability, glass-sealed surface-mount crystals. These components are engineered for robust performance in compact electronic systems where environmental stress resistance is critical. The 7A-12.000MAAQ-T specifically targets applications requiring precise timing in small form-factor devices, leveraging the durability of glass sealing to maintain frequency accuracy over time.

Crystals Replacement Considerations

Publicly confirmed substitutes include CTS-Frequency Controls part number 445C33A12M00000. Users should evaluate this alternative for parameter equivalence regarding frequency, load capacitance, and physical dimensions before implementation.

Crystals FAQ

What is the current manufacturing status of the 7A-12.000MAAQ-T?

The component is obsolete and no longer manufactured by TXC Corporation.

Does the 7A-12.000MAAQ-T support AEC-Q200 automotive certification?

No, the 7A series is not certified under AEC-Q200; automotive-grade alternatives such as the AV series should be considered for vehicle applications.