7A-27.000MAAV-T

Crystals Overview

The TXC CORPORATION 7A-27.000MAAV-T is a surface-mount MHz crystal designed for base harmonic operation. It operates at a nominal frequency of 27 MHz with a frequency stability and tolerance of ±30ppm. The component features an 8pF load capacitance and an equivalent series resistance (ESR) of 50 Ohms. It is housed in a compact 2-SMD, No Lead package measuring 5.00mm x 3.20mm with a maximum height of 1.35mm. The device supports a standard operating temperature range of -20°C to +70°C and complies with RoHS3 specifications.

Crystals Feature Summary

• Provides stable timing signals at 27 MHz with ±30ppm frequency tolerance
• Utilizes a compact 2-SMD surface mount footprint for automated assembly
• Operates in fundamental resonance mode with 8pF load capacitance

Crystals Applications

• Clock generation for microcontrollers requiring 27 MHz reference
• RF transmitter and receiver circuits utilizing 27 MHz carrier frequencies
• Industrial control systems within the specified temperature range

Crystals Procurement Notes

Verify current availability status as this component is marked as obsolete and no longer manufactured. Confirm that replacement parts from other manufacturers meet all electrical specifications including frequency, load capacitance, and ESR before procurement. Ensure design compatibility with suggested substitutes to avoid circuit redesign requirements.

Crystals Selection Notes

Select this component only if the application can accommodate obsolete part status or utilizes existing approved substitute designs. Compare electrical parameters such as 50 Ohms ESR and 8pF load capacitance against alternative crystals. Validate that the 2-SMD package dimensions fit the PCB layout constraints. Check supplier documentation for specific substitution recommendations.

Crystals Part Context

This component belongs to the 7A Series of quartz crystals manufactured by TXC Corporation. The series offers various frequency options in a standardized 2-SMD package format. This specific model provides a 27 MHz output suitable for moderate precision timing applications. The series is designed for general-purpose electronic equipment requiring reliable frequency references.

Crystals Replacement Considerations

Publicly confirmed substitute part numbers include 445C33A27M00000, 445C33J27M00000, and 445C33K27M00000 from CTS-Frequency Controls. These alternatives are listed as similar replacements for the obsolete TXC part.