402F40022IJR

Crystals Overview

The CTS-Frequency Controls 402F40022IJR is a parallel fundamental quartz crystal operating at a nominal frequency of 40 MHz. It features a frequency tolerance and stability of ±20 ppm, with a load capacitance of 9 pF and an equivalent series resistance (ESR) of 60 Ohms. The component utilizes an AT-cut design within a hermetic ceramic surface mount package measuring 2.0 mm x 1.6 mm x 0.55 mm. It supports a drive level of 10 µW and operates within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Hermetic ceramic surface mount package for environmental protection
• AT-cut fundamental crystal design ensuring high Q factor
• Sub-miniature form factor suitable for space-constrained layouts

Crystals Applications

• IoT and IIoT Applications
• Wireless Communications
• USB Interfaces
• Portable Equipment

Crystals Procurement Notes

Verify the specific suffix IJR against the manufacturer's current datasheet to confirm availability and exact lot codes. Ensure that the 9 pF load capacitance matches the target oscillator circuit requirements. Confirm RoHS compliance status and lead times directly with authorized distributors prior to finalizing procurement plans.

Crystals Selection Notes

Select this component when a 40 MHz reference with ±20 ppm stability is required in a compact SMD footprint. The 9 pF load capacitance dictates compatibility with specific microcontroller or FPGA clock inputs. Consider the 60 Ohm ESR for oscillator loop gain margins and verify thermal performance within the specified -40°C to +85°C operational window.

Crystals Part Context

This part belongs to the CTS 402 Series, which offers sub-miniature surface mount crystals. The series typically covers frequencies from 16 MHz to 96 MHz in a 2.0 x 1.6 mm package. The 402F variant specifically denotes fundamental mode operation with standard tolerance specifications, distinguishing it from higher-precision or overtone variants within the broader product line.

Crystals Replacement Considerations

Direct substitutes include other 40 MHz crystals with 9 pF load capacitance and similar ESR values. Verify package dimensions and pinout compatibility before substitution. Cross-reference with CTS 402WF series if tighter tolerance or different packaging is acceptable.