9C-12.000MAAJ-T

Crystals Overview

The 9C-12.000MAAJ-T is a surface-mount quartz crystal manufactured by TXC Corporation, designed for precision timing applications. It operates at a fundamental frequency of 12 MHz with a load capacitance of 18 pF and an equivalent series resistance of 40 Ohms. The component features a frequency tolerance and stability of ±30 ppm across the operating temperature range of -20°C to +70°C. Housed in an HC-49/US compatible SMD package, it utilizes glass seal technology for environmental protection. This device serves as a clock source for digital circuits requiring stable oscillation within standard commercial temperature limits.

Crystals Feature Summary

• Utilizes glass-sealed quartz resonator technology for enhanced environmental durability
• Designed for direct surface mount integration into printed circuit boards
• Provides stable fundamental mode oscillation at 12 MHz

Crystals Applications

• Digital clock signal generation for microprocessors
• Timing reference for communication interface circuits
• Clock sources for consumer electronic control systems

Crystals Procurement Notes

Verify current manufacturing status before procurement planning, as this specific part number may be classified as obsolete or no longer manufactured by the supplier. Confirm availability through authorized distributors or check for valid replacement alternatives if active stock is required. Ensure that the selected substitute matches the original electrical parameters and physical footprint requirements to maintain circuit compatibility without redesigning the PCB layout.

Crystals Selection Notes

Select this component when a 12 MHz fundamental frequency with ±30 ppm stability is required for commercial temperature ranges. The 18 pF load capacitance must match the oscillator circuit design specifications. Consider the 40 Ohm ESR value for driver strength compatibility. Verify that the HC-49/US SMD form factor fits the available board space constraints and soldering profile requirements for the production assembly process.

Crystals Part Context

This crystal belongs to the broader category of surface-mount quartz resonators produced by TXC Corporation. It shares the HC-49/US mechanical outline with other variants in the lineup but differs in frequency, tolerance, and packaging suffixes. The 9C series typically targets cost-sensitive consumer electronics applications where moderate stability suffices. It represents a standard solution for basic timing needs in mass-produced devices.

Crystals Replacement Considerations

Public records indicate this part number is obsolete. Seek substitutes such as the 9C-12.000MAGJ-T or other 12 MHz crystals from TXC with identical 18 pF load capacitance and HC-49/US SMD dimensions. Ensure any replacement maintains the 40 Ohm ESR and ±30 ppm stability specifications to guarantee functional equivalence in existing designs.