402F20011CJT

Crystals Overview

The CTS-Frequency Controls 402F20011CJT is a fundamental mode quartz crystal resonator designed for surface-mount applications. It operates at a nominal frequency of 20 MHz with a frequency stability and tolerance of ±10 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 100 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
• Surface-mount design in compact 4-SMD no-lead package
• Stable frequency performance with ±10 ppm tolerance
• Compliant with RoHS3 environmental standards

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references for communication interfaces such as UART and SPI
• Frequency control in consumer electronic devices
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix 'CJT' against official CTS documentation to confirm packaging and availability status, as distributor listings may indicate discontinuation or limited stock. Ensure the required load capacitance matches the target circuit design. Cross-reference the ESR value of 100 Ohms with oscillator circuit requirements to guarantee reliable startup and stable operation under specified load conditions.

Crystals Selection Notes

Select this component when a 20 MHz fundamental frequency with tight ±10 ppm stability is required for space-constrained designs. The 4-SMD form factor suits automated surface-mount assembly processes. Consider the 100 Ohm ESR and 9 pF load capacitance when designing the oscillator circuit to ensure impedance matching and proper resonance. Verify that the -20°C to +70°C operating range meets the environmental demands of the final application.

Crystals Part Context

This part belongs to the CTS 402 Series of surface-mount crystals, which are characterized by small footprints and high reliability. The series offers various frequencies and tolerances to support diverse digital timing needs. The 402F20011CJT specifically addresses the common requirement for 20 MHz clock sources in embedded systems where moderate stability and standard SMD packaging are sufficient.

Crystals Replacement Considerations

Direct substitutes include the 402F20011CJR from CTS-Frequency Controls, which shares identical electrical specifications but may differ in reel packaging quantity. Other compatible options within the 402 series must match the 20 MHz frequency, ±10 ppm tolerance, 9 pF load capacitance, and 4-SMD physical dimensions to ensure mechanical and electrical interchangeability.