FA-20H 40.0000MF20X-K

Crystals Overview

The Epson FA-20H 40.0000MF20X-K is a surface-mount crystal oscillator operating at a fundamental frequency of 40 MHz. It features a frequency tolerance of ±10 ppm and a stability of ±20 ppm over the specified temperature range. The component utilizes a 10 pF load capacitance and exhibits an equivalent series resistance (ESR) of 40 Ohms. Designed for compact applications, it is housed in a 4-SMD, no-lead package with dimensions of 2.50 mm x 2.00 mm and a maximum seated height of 0.55 mm.

Crystals Feature Summary

• Ultra-miniature SMD footprint suitable for space-constrained designs
• Fundamental mode operation for precise timing applications
• High frequency stability within a compact leadless package

Crystals Applications

• Precision timing circuits requiring stable clock signals
• Embedded systems with limited board space
• Consumer electronics utilizing surface-mount technology

Crystals Procurement Notes

Verify the specific suffix against official Epson documentation to confirm exact electrical parameters and packaging options. Ensure compatibility with reflow soldering profiles defined in the manufacturer's datasheet. Confirm that the 40 Ohm ESR aligns with the host circuit's oscillator design requirements before integration.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency is required with tight tolerance specifications. The 4-SMD no-lead package offers a low profile ideal for modern PCB layouts. Consider the 10 pF load capacitance requirement to ensure proper oscillation conditions are met within the target application circuit.

Crystals Part Context

This part belongs to the FA-20H series of ultra-miniature crystals from Epson Timing. The series is characterized by small physical dimensions and high reliability. The FA-20H models are designed to replace larger through-hole or standard SMD crystals in applications where size reduction is critical without compromising performance.

Crystals Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data directly with Epson authorized distributors or technical support channels to identify compatible alternatives.