7M-40.000MEEV-T

Crystals Overview

The 7M-40.000MEEV-T is a fundamental parallel resonant quartz crystal manufactured by TXC Corporation, operating at a nominal frequency of 40 MHz. It features a compact surface-mount package measuring 3.2 mm in length and 2.5 mm in width, with a maximum height of 1.1 mm. The component exhibits a frequency tolerance of ±10 ppm at 25°C and maintains stability within ±10 ppm across the industrial temperature range of -20°C to +70°C. It utilizes an 8 pF load capacitance and has a maximum equivalent series resistance (ESR) of 60 Ohms. The device supports a maximum drive level of 1 mW.

Crystals Feature Summary

• Fundamental parallel resonance operation for stable frequency generation
• Seam seal construction providing environmental protection
• Compact four-terminal surface-mount design for automated assembly

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references for communication interfaces such as UART and SPI
• Frequency standards for digital logic circuits and embedded systems

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required load capacitance and temperature stability specifications. Confirm that the package dimensions align with the target PCB footprint and solder mask definitions prior to procurement.

Crystals Selection Notes

Select this component when a 40 MHz timing source is required with ±10 ppm initial accuracy and ±10 ppm total stability over the -20°C to +70°C range. Ensure the circuit design provides an 8 pF load capacitance and limits the drive power to 1 mW to prevent frequency shifts or damage.

Crystals Part Context

This part belongs to the 7M series of seam seal crystals from TXC Corporation. These components are designed for general-purpose applications requiring reliable frequency control in consumer electronics and industrial equipment. The series offers various frequency options within a standardized small outline package format.

Crystals Replacement Considerations

The 7M-40.000MEEQ-T is a documented alternative within the same series, featuring a 10 pF load capacitance instead of 8 pF. Verify circuit compatibility regarding load capacitance requirements before substitution.