AY-27.120MFNQ-T

Crystals Overview

The AY-27.120MFNQ-T is a surface-mount quartz crystal manufactured by TXC Corporation, designed for automotive applications with AEC-Q200 certification. It operates at a fundamental frequency of 27.12 MHz and utilizes a 10 pF load capacitance. The component features a seam seal package in a 4-pin SMD configuration with dimensions of 2.0 mm x 1.6 mm. Frequency tolerance is specified at ±15 ppm at 25°C, with stability ranging from ±15 ppm to ±50 ppm across the -40°C to +125°C temperature range. Equivalent series resistance is 100 Ohms.

Crystals Feature Summary

• AEC-Q200 certified for automotive reliability standards
• Seam seal construction ensuring environmental protection
• Compact 2.0x1.6 mm surface mount footprint
• High frequency stability across extended temperature ranges

Crystals Applications

• Automotive electronic control units
• In-car infotainment systems
• Vehicle communication modules
• Automotive sensor interfaces

Crystals Procurement Notes

Verify that the specific part number includes the MFNQ suffix to confirm the 2.0x1.6 mm seam seal package and AEC-Q200 qualification. Confirm that the required frequency tolerance matches the ±15 ppm specification at 25°C and the ±50 ppm stability over the operating temperature range. Ensure the design accommodates the 10 pF load capacitance and 100 Ohm ESR parameters before procurement.

Crystals Selection Notes

Select this component when space constraints require a 2.0x1.6 mm footprint instead of standard 3.2x2.5 mm crystals. Choose this model for applications demanding strict automotive quality certifications under AEC-Q200. Consider the higher cost associated with seam seal technology compared to ceramic alternatives if budget is a primary constraint.

Crystals Part Context

This crystal belongs to TXC's automotive-grade MHz crystal lineup, which emphasizes high reliability and stability for harsh environments. The AY series specifically targets compact designs requiring robust performance. It complements other TXC automotive crystals like the AV and 7V series but offers a smaller physical profile suitable for dense PCB layouts.

Crystals Replacement Considerations

QT325G-27.120MAHV-T by QST is listed as a parameter-equivalent substitute.