7A-20.000MAAE-T

Crystals Overview

The TXC Corporation 7A-20.000MAAE-T is a fundamental mode quartz crystal resonator operating at a nominal frequency of 20 MHz. It utilizes a 5.00mm x 3.20mm surface-mount package with two solder pads. The component exhibits a frequency tolerance of ±30ppm and a load capacitance of 18pF. It supports a parallel resonance mode with an equivalent series resistance (ESR) of 40 Ohms maximum. The device operates within a temperature range of -20°C to +70°C and complies with RoHS standards.

Crystals Feature Summary

• Fundamental mode quartz crystal construction for stable frequency generation
• Glass-sealed surface mount design for environmental reliability
• Standard 18pF load capacitance compatibility for common microcontroller interfaces

Crystals Applications

• Portable USB interface cards
• Personal Digital Assistants (PDAs)
• Digital cameras
• Laptop computer clock circuits

Crystals Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when sourcing from distributors. Confirm the active status, as some listings may indicate end-of-life or limited availability. Ensure the 18pF load capacitance matches the target circuit design requirements before finalizing procurement orders.

Crystals Selection Notes

Select this component for applications requiring a 20MHz reference in compact form factors. The 3225 package size suits space-constrained designs. Verify that the ±30ppm stability meets system timing requirements. Consider the -20°C to +70°C operating range against environmental conditions.

Crystals Part Context

This part belongs to the TXC 7A series of glass-sealed quartz crystals. The series is characterized by high reliability and suitability for consumer electronics. The 7A designation typically denotes a 5x3.2mm footprint with fundamental mode operation, distinguishing it from higher-frequency overtone or oscillator variants.

Crystals Replacement Considerations

The 7B-20.000MAAE-T is listed as a similar alternative, though it is marked as obsolete. Other potential substitutes include the 7M-20.000MAAE-T or 7V-20.000MAAE-T from TXC, provided they match the 18pF load capacitance and package dimensions.