7V-14.31818MAAJ-T

Crystals Overview

The TXC Corporation 7V-14.31818MAAJ-T is a surface-mount quartz crystal resonator designed for precision timing applications. It operates at a nominal frequency of 14.31818 MHz with a load capacitance of 18 pF and a maximum equivalent series resistance (ESR) of 100 Ohms. The component exhibits a frequency stability and tolerance of ±30 ppm across an operating temperature range of -20°C to +70°C. Housed in a compact 4-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a maximum height of 0.80 mm, it supports base harmonic operation modes.

Crystals Feature Summary

• Surface-mount construction utilizing a leadless 4-SMD package for automated assembly compatibility
• Base harmonic oscillation mode ensuring straightforward circuit integration without harmonic suppression networks
• Glass-sealed design providing environmental protection and compliance with RoHS standards

Crystals Applications

• Reference clock source for USB hubs requiring standard PC-era frequencies
• Timing reference for audio codecs and digital signal processors
• Clock generation for microcontroller units and embedded systems
• Consumer electronics devices requiring compact surface-mount timing components

Crystals Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when sourcing from distributors. Confirm that the requested quantity aligns with the manufacturer's factory pack quantity of 3000 units if ordering full reels. Ensure the application environment remains within the specified -20°C to +70°C operational range to maintain the guaranteed ±30 ppm frequency stability. Check for moisture sensitivity level requirements during storage and handling prior to soldering.

Crystals Selection Notes

Select this component when a 14.31818 MHz frequency is required for legacy protocol compatibility or audio sampling rates. The 18 pF load capacitance must match the oscillator circuit design; mismatched capacitance may cause frequency deviation beyond the ±30 ppm limit. Consider the 100 Ohm ESR maximum to ensure reliable start-up times with the target microcontroller or oscillator driver. The 3225 footprint offers space savings compared to larger through-hole alternatives while maintaining robust mechanical integrity.

Crystals Part Context

This part belongs to the TXC 7V series of surface-mount crystals, which are widely used in consumer and industrial electronics. The 14.31818 MHz frequency is a standard derived from the original IBM PC clock speed, making it common in interfaces like PCI, USB, and various audio standards. The 7V series typically features glass sealing for enhanced reliability and is manufactured by TXC Corporation, a specialist in frequency control components.

Crystals Replacement Considerations

Direct substitutes include the 7M-14.31818MAAJ-T, which shares identical electrical parameters but may differ in packaging details. Other compatible parts within the same frequency and package size should be verified for matching load capacitance (18 pF), ESR limits, and temperature stability specifications before substitution.