402F40011CJT

Crystals Overview

The 402F40011CJT is a fundamental mode quartz crystal resonator manufactured by CTS-Frequency Controls. It operates at a nominal frequency of 40 MHz with a frequency tolerance and stability of ±10 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 60 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.00 mm x 1.60 mm x 0.55 mm maximum height. The device supports base harmonic operation and functions within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental mode quartz crystal resonator for precise timing applications
• Compact 4-SMD no-lead surface mount package design
• High frequency stability with ±10 ppm tolerance
• RoHS3 compliant construction

Crystals Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits
• Embedded system oscillators

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm that the 4-SMD no-lead package dimensions align with the target PCB footprint and soldering profile requirements before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 40 MHz fundamental frequency with ±10 ppm stability is required in a compact surface-mount form factor. Ensure the application circuit provides a 9 pF load capacitance to maintain accuracy. Consider the 60 Ohm ESR value for oscillator circuit design to guarantee reliable startup and sustained oscillation within the specified operating temperature range.

Crystals Part Context

This part belongs to the 402 Series of crystals from CTS-Frequency Controls, designed for general-purpose timing applications. The series offers various frequencies and tolerances in standardized SMD packages. The 402F40011CJT specifically addresses needs for 40 MHz reference clocks in space-constrained electronic designs requiring moderate stability.

Crystals Replacement Considerations

Direct substitutes include other 40 MHz crystals with identical 9 pF load capacitance and ±10 ppm tolerance in a 4-SMD no-lead package. Verify pinout compatibility and physical dimensions when considering alternative manufacturers or different series components from CTS.