7A-12.288MBBK-T

Crystals Overview

The 7A-12.288MBBK-T is a surface-mount quartz crystal manufactured by TXC Corporation, operating at a fundamental frequency of 12.288 MHz. It features a 20 pF load capacitance and a frequency tolerance of ±50 ppm. The component utilizes a 2-SMD, no-lead package with dimensions of 5.00 mm in length, 3.20 mm in width, and a maximum height of 1.35 mm. Designed for base harmonic operation, it supports an operating temperature range from -20°C to +70°C and exhibits an equivalent series resistance (ESR) of 50 Ohms.

Crystals Feature Summary

• Glass-sealed construction provides enhanced resistance to moisture and environmental stress compared to standard ceramic or resin packages.
• Compatible with standard SMT automated assembly processes and reflow soldering profiles without requiring specialized工艺 adaptations.
• Low stray capacitance design simplifies circuit matching requirements for microcontroller clock inputs.

Crystals Applications

• Portable USB data acquisition cards
• Laptop and PDA internal clock circuits
• Digital camera timing modules
• NFC reader devices

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official part number guide to ensure correct tolerance and packaging specifications. Confirm RoHS compliance status, noting that lead content in glass seals may fall under specific exemptions. Check current lifecycle status as discontinuation notifications may apply to this series.

Crystals Selection Notes

Select this component when a 12.288 MHz reference is required for consumer electronics within the specified temperature range. Ensure the target application circuit matches the 20 pF load capacitance requirement. Consider the 50 Ohm ESR value for oscillator circuit stability calculations during the design phase.

Crystals Part Context

This part belongs to the TXC 7A series, which specializes in 3225-sized surface-mount crystals. The series is engineered for high reliability in portable devices, offering superior thermal stability over standard commercial-grade alternatives through its sealed housing technology.

Crystals Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the QT532G-20.000MBBK-T from QST. Verify pin compatibility and electrical parameters before implementation.