7M-20.000METJ-T

Crystals Overview

The 7M-20.000METJ-T is a quartz crystal resonator manufactured by FTS, designed for precision timing applications. It operates at a fundamental frequency of 20 MHz with a frequency tolerance of ±10 ppm across the commercial temperature range of -30°C to +85°C and ±10 ppm at 25°C. The component features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 60 Ohms. It utilizes a 4-SMD, No Lead package with dimensions of 3.2 x 2.5 mm, employing a seam seal construction method suitable for surface-mount assembly.

Crystals Feature Summary

• Seam seal construction ensures hermetic sealing for environmental stability
• Compact 4-SMD no-lead footprint facilitates automated surface-mount placement
• Stable frequency performance maintained across standard commercial temperature ranges

Crystals Applications

• Microcontroller clock sources
• Communication module timing references
• Consumer electronics oscillators

Crystals Procurement Notes

Verify the manufacturer designation carefully, as the part number may appear under both FTS and TXC Corporation in distributor databases due to manufacturing relationships. Confirm the specific suffix METJ-T corresponds to the 18pF load capacitance and 60 Ohm ESR specifications. Ensure the requested quantity matches the standard reel packaging requirements typically associated with this SMD crystal variant.

Crystals Selection Notes

Select this component when a 20 MHz reference with ±10 ppm stability is required for space-constrained designs. The 18pF load capacitance must match the oscillator circuit design parameters. Consider the 3.2x2.5mm package size against available PCB real estate. Verify that the operating temperature range of -30°C to +85°C aligns with the final product's environmental conditions.

Crystals Part Context

This crystal belongs to the 7M series of surface-mount quartz resonators. These components are engineered for high-frequency stability in compact electronic systems. The seam seal technology distinguishes them from epoxy-sealed alternatives, offering improved long-term reliability and moisture resistance for demanding industrial and consumer applications.

Crystals Replacement Considerations

Cross-reference with other 20 MHz crystals featuring identical 18pF load capacitance and 3.2x2.5mm SMD packages. Verify pinout compatibility and mechanical footprint alignment before substitution. Ensure alternative parts meet the same ±10 ppm frequency tolerance and thermal stability requirements.