MX3KJJI40M0

Crystals Overview

The MX3KJJI40M0 is a surface-mount quartz crystal resonator manufactured by Meritek Electronics. It operates at a nominal frequency of 40 MHz in parallel fundamental mode. The component features a 6.0mm x 3.6mm x 1.2mm SMD package with four pins. Key electrical specifications include a load capacitance of 18 pF, a maximum series resistance of 50 Ω, and a drive level of 10 µW. Frequency tolerance is specified at ±50 ppm, with stability at 0.01%. Aging is rated at 3 ppm per year. The device supports an operating temperature range from -40 °C to 105 °C.

Crystals Feature Summary

• Surface mount construction for automated assembly
• Parallel fundamental oscillation mode
• High-temperature operational capability up to 105 °C

Crystals Applications

• Microcontroller clock sources
• Communication module timing circuits
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to confirm exact frequency tolerance, aging rates, and packaging options. Ensure that the selected variant matches the required load capacitance and drive level for the target circuit design. Cross-reference RoHS compliance status directly with the supplier documentation prior to procurement.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency is required in a compact surface-mount form factor. Consider the 18 pF load capacitance requirement for oscillator circuit compatibility. Evaluate the 50 Ω maximum ESR against the oscillator amplifier capabilities. Confirm that the -40 °C to 105 °C temperature range meets the environmental constraints of the final application.

Crystals Part Context

This part belongs to the Meritek MX3 series of quartz crystals. The series offers various frequencies and packages for general-purpose timing applications. The MX3KJJI40M0 specifically addresses the need for stable 40 MHz reference signals in space-constrained electronic designs requiring robust thermal performance.

Crystals Replacement Considerations

Direct substitutes must match the 40 MHz frequency, parallel fundamental mode, 18 pF load capacitance, and 6.0x3.6mm SMD footprint. Verify equivalent electrical parameters such as ESR and drive level sensitivity before substitution.