MXJFHJI40M0

Crystals Overview

The Meritek MXJFHJI40M0 is a surface-mount quartz crystal unit operating at a nominal frequency of 40 MHz. It features a load capacitance of 20 pF and an equivalent series resistance (ESR) of 80 Ohms. The component supports fundamental mode operation with a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm. It is designed for a wide operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Surface mount construction in HC-49SMD package
• Fundamental mode oscillation
• Wide industrial temperature range capability

Crystals Applications

• Wired network equipment
• Mobile communication devices
• WiMAX systems
• WLAN applications
• Test equipment

Crystals Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure correct load capacitance and tolerance specifications. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the ordering part number matches the required frequency stability and ESR parameters for the target circuit design.

Crystals Selection Notes

Select this component for circuits requiring a 40 MHz reference signal with ±30 ppm tolerance. The 20 pF load capacitance must match the oscillator circuit requirements. Consider the 80 Ohm ESR when designing drive level constraints. Verify compatibility with reflow soldering processes due to the surface mount package type.

Crystals Part Context

This part belongs to the Meritek MXJ series of low-profile surface mount crystals. The series is characterized by high precision, high frequency stability, and excellent heat resistance. These components are engineered for compact electronic designs requiring reliable timing solutions in space-constrained environments.

Crystals Replacement Considerations

Direct substitutes include other Meritek MXJ series crystals with identical 40 MHz frequency, 20 pF load capacitance, and ±30 ppm tolerance. Verify that alternative parts maintain the same HC-49SMD footprint and electrical characteristics to ensure mechanical and functional compatibility.