7A-27.000MAAE-T

Crystals Overview

The 7A-27.000MAAE-T is a surface-mount crystal oscillator manufactured by TXC Corporation, operating at a nominal frequency of 27 MHz. It features a frequency tolerance of ±30 ppm and a load capacitance of 12 pF. The component utilizes a 50 Ohm equivalent series resistance (ESR) and is housed in a 2-SMD, no lead package with dimensions of 5.0 mm x 3.2 mm. Designed for commercial applications, it supports an operating temperature range from -20°C to +70°C. This device is part of the 7A series, characterized by glass-sealed construction for enhanced environmental stability.

Crystals Feature Summary

• Glass-sealed construction provides superior resistance to moisture and environmental stress compared to standard ceramic or resin packages.
• Compatible with standard SMT assembly processes and reflow soldering without requiring specialized工艺 adaptations.
• Low drive level operation typical of 100 μW ensures minimal power consumption suitable for battery-powered portable devices.

Crystals Applications

• Portable USB interface cards and data acquisition modules
• Personal Digital Assistants (PDAs) and handheld computing devices
• Digital cameras and imaging peripherals
• NFC readers and small-form-factor IoT sensors

Crystals Procurement Notes

Verify current manufacturing status as this specific part number may be classified as obsolete or end-of-life by the manufacturer. Confirm availability of active substitutes if production continuity is required. Ensure compliance with RoHS exemption requirements regarding lead content in glass seals during procurement documentation review.

Crystals Selection Notes

Select this component when a 27 MHz clock source is required for compact consumer electronics. The 30 ppm tolerance is sufficient for general-purpose timing applications. Consider alternative frequencies within the 8-80 MHz range if system requirements differ. Verify that the 12 pF load capacitance matches the target circuit design for optimal frequency accuracy.

Crystals Part Context

This component belongs to the TXC 7A series of surface-mount crystals. The series is distinguished by its 3225 (5.0x3.2mm) footprint and glass-sealing technology. It targets the commercial market segment, offering reliability improvements over traditional ceramic-packaged crystals while maintaining cost-effectiveness for high-volume consumer electronics manufacturing.

Crystals Replacement Considerations

The 7M-27.000MAAE-T is listed as a similar alternative part. Verify dimensional compatibility and electrical parameter alignment before substitution. Check for any changes in mounting style or package height that might affect PCB layout constraints.