8Z-27.120MEHQ-T

Crystals Overview

The 8Z-27.120MEHQ-T is a surface mount quartz crystal unit manufactured by TXC Corporation, designed for high precision and frequency stability applications. It operates at a fundamental frequency of 27.12 MHz with a load capacitance of 10 pF. The component features a seam-sealed package construction measuring 2.5 mm in length, 2.0 mm in width, and 0.55 mm in height. It offers a frequency tolerance of ±30 ppm and an equivalent series resistance (ESR) of 100 Ohms. The device supports base mode operation and is suitable for environments requiring reliable timing signals.

Crystals Feature Summary

• Seam-sealed surface mount construction for enhanced environmental protection
• High-frequency stability suitable for precision timing circuits
• Compact miniature footprint optimized for space-constrained designs

Crystals Applications

• Precision clock generation in communication modules
• Timing references for microcontroller systems
• Signal processing equipment requiring stable oscillation

Crystals Procurement Notes

Verify the specific suffix MEHQ against official TXC documentation to confirm the exact electrical parameters and packaging configuration. Ensure compatibility with reflow soldering profiles specified in the datasheet. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process before procurement.

Crystals Selection Notes

Select this component when a 27.12 MHz fundamental frequency is required with a 10 pF load capacitance. The 100 Ohm ESR value dictates the drive level and circuit design considerations. The 2.5x2.0 mm package size should be matched against the available PCB land pattern. Consider the ±30 ppm tolerance relative to system timing accuracy requirements.

Crystals Part Context

This part belongs to the TXC 8Z series of seam-sealed crystals. These units are engineered for surface mount technology (SMT) assembly processes. The series provides a balance between miniaturization and performance, targeting applications where standard through-hole packages are too large but higher stability than basic unsealed crystals is necessary.

Crystals Replacement Considerations

QT325G-27.120MAHV-T by QST is listed as a parameter-equivalent substitute. Verify that the replacement matches the 10 pF load capacitance, 100 Ohm ESR, and 2.5x2.0 mm package dimensions. Confirm that the substitute meets the same ±30 ppm tolerance and temperature range specifications.