402F20412IJR

Crystals Overview

The CTS-Frequency Controls 402F20412IJR is a surface-mount quartz crystal resonator operating at a fundamental frequency of 20.48 MHz. It features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 100 Ohms. The component offers a frequency tolerance of ±10 ppm and a frequency stability of ±20 ppm. Designed for reliability, it operates within a temperature range of -40°C to +85°C. The device utilizes a 4-SMD, no-lead package with dimensions of 2.00 mm x 1.60 mm and a maximum height of 0.55 mm.

Crystals Feature Summary

• Fundamental mode operation for precise timing applications
• Compact 4-SMD surface mount footprint for automated assembly
• Wide industrial temperature rating ensuring stable performance in harsh environments

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific suffix 'IJR' against official CTS documentation to confirm lead time and availability status, as stock levels fluctuate. Ensure the ordering part number matches the required 9 pF load capacitance and 100 Ohm ESR specifications. Confirm RoHS compliance requirements align with project standards before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 20.48 MHz fundamental frequency is required with tight initial tolerance. The 9 pF load capacitance must match the oscillator circuit design. Consider the 100 Ohm ERS for drive level sensitivity. The 4-SMD package size suits high-density PCB layouts requiring small form factor components.

Crystals Part Context

This part belongs to the CTS 402 Series, which covers frequencies from 16 MHz to 60 MHz. The series provides various load capacitance options and package sizes. The 402F20412IJR specifically addresses the need for standard microcontroller clock speeds in a compact surface-mount configuration.

Crystals Replacement Considerations

Direct substitutes include 402F20412IDT and 402F20412ILT if package or tape/reel variations are acceptable. Verify that alternative parts maintain the same 9 pF load capacitance and 100 Ohm ESR to ensure circuit compatibility.