9C-27.000MAAK-T

Crystals Overview

The TXC Corporation 9C-27.000MAAK-T is a surface mount quartz crystal unit operating at a fundamental frequency of 27 MHz. It features a load capacitance of 20 pF and maintains a frequency tolerance and stability of ±30 ppm at 25 °C. The component operates within an extended temperature range of -20 °C to +70 °C, with a maximum shunt capacitance of 7 pF and a drive level between 1 and 500 μW. Housed in the HC-49/US SMD package measuring 11.40 mm x 4.80 mm x 4.10 mm, it supports high-frequency pullability and low equivalent series resistance for reliable clock generation.

Crystals Feature Summary

• Surface mount design utilizing the HC-49/US form factor for automated assembly compatibility
• High frequency pullability combined with low equivalent series resistance characteristics
• Compliant with RoHS standards and lead-free manufacturing processes

Crystals Applications

• Personal computer system clock circuits
• Set-top box signal processing modules
• LCD monitor timing references
• Cable modem synchronization units

Crystals Procurement Notes

Verify the specific load capacitance requirement against the target circuit design, as this variant specifies 20 pF compared to other 27 MHz options like the 18 pF or 12 pF variants. Confirm that the HC-49/US SMD footprint matches the PCB layout constraints. Ensure the operating temperature range of -20 °C to +70 °C meets the environmental conditions of the final application before integration.

Crystals Selection Notes

Select this component when a standard 27 MHz reference is required for consumer electronics such as PCs or cable modems. The HC-49/US SMD package offers a balance of performance and size suitable for general-purpose digital logic clocks. Consider the ±30 ppm stability sufficient for non-critical timing applications where higher precision oscillators are unnecessary.

Crystals Part Context

This part belongs to the 9C Series of metal can type crystals manufactured by TXC Corporation. The series is characterized by mass production capabilities and availability in numerous standard frequencies. These components serve as foundational timing elements for various digital communication and computing hardware requiring stable fundamental mode operation.

Crystals Replacement Considerations

The 9C-27.000MAAJ-T serves as a direct alternative but utilizes a 18 pF load capacitance instead of 20 pF. Designers must verify if the circuit impedance matches the new capacitance value. Other variants in the 9C series may offer different tolerances or temperature ranges but require careful electrical parameter comparison.