7A-12.000MBBK-T

Crystals Overview

The TXC CORPORATION 7A-12.000MBBK-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 12 MHz. It features a standard load capacitance of 20 pF and offers a frequency stability of ±50 ppm across the industrial temperature range of -20°C to +70°C. The component utilizes a 2-SMD, no-lead package with dimensions of 5.00 mm in length and 3.20 mm in width, reaching a maximum height of 1.35 mm. It exhibits an equivalent series resistance (ESR) of 80 Ohms and operates in the fundamental mode. The device is RoHS compliant and classified under ECCN EAR99.

Crystals Feature Summary

• Glass-sealed construction for enhanced environmental stress resistance
• Surface-mount design compatible with standard SMT processes
• Fundamental mode operation with defined load capacitance

Crystals Applications

• Portable USB interface cards
• Personal Digital Assistants (PDAs)
• Digital cameras
• Laptop computers

Crystals Procurement Notes

Verify current manufacturing status as the component may be obsolete or discontinued. Confirm availability through authorized distributors or check for parameter-equivalent substitutes if direct supply is unavailable. Ensure compliance with RoHS3 specifications and validate package dimensions against PCB footprint requirements prior to procurement.

Crystals Selection Notes

Select this component for applications requiring a 12 MHz clock source in compact form factors. The 5x3.2 mm package suits space-constrained designs. Verify that the system circuit supports the 20 pF load capacitance and 80 Ohm ESR characteristics. Consider the ±50 ppm stability limit against application timing requirements.

Crystals Part Context

This part belongs to the TXC 7A series of glass-sealed surface-mount crystals. The series is characterized by high reliability and resistance to moisture and thermal stress compared to ceramic packages. The 7A series targets consumer electronics and portable devices where size and durability are critical.

Crystals Replacement Considerations

Parameter-equivalent alternatives include QT532G-20.000MBBK-T from QST. Verify mechanical compatibility and electrical parameters before substitution.